CN105372597A - Battery testing method and system - Google Patents
Battery testing method and system Download PDFInfo
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- CN105372597A CN105372597A CN201510711588.6A CN201510711588A CN105372597A CN 105372597 A CN105372597 A CN 105372597A CN 201510711588 A CN201510711588 A CN 201510711588A CN 105372597 A CN105372597 A CN 105372597A
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Abstract
The invention discloses a battery testing method and system. The battery testing method comprises that a PC transmits a target charging temperature value to a thermotank to set the thermotank according to the target charging temperature value; a charging instruction is sent to a power supply device so that the power supply device charges a battery according to the charging instruction; when it is detected that the battery voltage reaches a preset voltage, a target discharging temperature value is sent to the thermotank to set the thermotank according to the target discharging temperature value; instruction to collect the open circuit voltage of the battery is transmitted to the power supply device, so that the power supply device collects the open circuit voltage of the battery; a discharging instruction is sent to the power supply device, so that the battery discharges to the power supply device in the discharging voltage included in the discharging instruction at the target discharging temperature; and when it is detected that the discharging capacity reaches a preset value, the battery stops charging and outputs a test report. Thus, the battery can be tested without electronic loads, and the test cost is reduced.
Description
Technical field
The application relates to communication technical field, particularly relates to a kind of battery testing method and battery test system.
Background technology
Battery usually can carry out testing its parameter (such as, duration of charging, discharge current, discharge capacity etc.) before dispatching from the factory, qualified to be confirmed whether.Battery test system is made up of battery, power supply, electronic load, constant temperature oven usually.
Because electronic load is non-universal equipment, and expensive, battery testing cost is higher.
Summary of the invention
The technical matters that the application mainly solves is to provide a kind of battery testing method and system, when not using electronic load, can realize battery testing, reduces testing cost.
For solving the problems of the technologies described above, the technical scheme that the present invention adopts is: provide a kind of battery testing method, described method comprises: PC sends target charging temperature value to constant temperature oven, arranges according to described target charging temperature value to control described constant temperature oven; And send charging instruction to power-supply device, battery is charged according to described charging instruction to control described power-supply device; Wherein, described charging instruction comprises charging voltage value and charging current value; When the voltage of described battery reaches predeterminated voltage, described power-supply device stops charging to described battery; When detecting that described cell voltage reaches described predeterminated voltage, sending discharge target temperature value to described constant temperature oven, arranging according to described discharge target temperature value to control described constant temperature oven; And send the instruction of the open-circuit voltage gathering described battery to described power-supply device, to control the open-circuit voltage that described power-supply device gathers described battery; Send electric discharge instruction to described power-supply device, to control described battery at described discharge target temperature, discharge to described power-supply device with the sparking voltage that described electric discharge instruction comprises; Wherein, described electric discharge instruction comprises the preset value of sparking voltage, discharge capacity; When detecting that discharge capacity reaches described preset value, controlling described battery and stopping discharging and exporting test report; Wherein, described test report at least comprises open-circuit voltage and this discharge capacity of described battery.
Wherein, described electric discharge instruction also comprises the lower threshold of sparking voltage lower threshold or discharge current.
When described electric discharge instruction comprise sparking voltage, discharge capacity preset value, sparking voltage lower threshold time, described PC stops when detecting that discharge capacity reaches described preset value discharging and the step exporting test report comprises: when detecting that discharge capacity reaches described preset value, obtain the first voltage of battery; When described first voltage is less than or equal to described sparking voltage lower threshold, controls described battery and stop discharging and exporting test report; When described first voltage is greater than described sparking voltage lower threshold, controls described battery and continue to discharge to described power-supply device.
Wherein, when described electric discharge instruction comprise sparking voltage, discharge capacity preset value, discharge current lower threshold time, described PC stops when detecting that discharge capacity reaches described preset value discharging and the step exporting test report comprises: when detecting that discharge capacity reaches described preset value, obtain the first electric current of battery; When described first electric current is less than or equal to the lower threshold of described discharge current, controls described battery and stop discharging and exporting test report; When described first electric current is greater than the lower threshold of described discharge current, control described battery and continue to discharge to described power-supply device.
Described PC stops when detecting that discharge capacity reaches preset value discharging and after exporting the step of test report, described method also comprises: described PC according to described test report to described battery electric quantity modeling, to analyze described battery.
For solving the problems of the technologies described above, another technical solution used in the present invention is: provide a kind of battery test system, and described battery test system comprises: PC, power-supply device, battery, constant temperature oven; Described PC is used for sending target charging temperature value to constant temperature oven, arrange according to described target charging temperature value to control described constant temperature oven, and for sending charging instruction to power-supply device, battery is charged according to described charging instruction to control described power-supply device; Wherein, described charging instruction comprises charging voltage value and charging current value; When the voltage of described battery reaches predeterminated voltage, described power-supply device stops charging to described battery; The described target charging temperature value that described constant temperature oven sends for receiving described PC, and arrange according to described target charging temperature value; The described charging instruction that described power-supply device sends for receiving described PC, and according to described charging instruction, battery is charged; Described PC, also for when detecting that described cell voltage reaches described predeterminated voltage, sending discharge target temperature value to described constant temperature oven, arranging to control described constant temperature oven according to described discharge target temperature value; And send the instruction of the open-circuit voltage gathering described battery to described power-supply device, to control the open-circuit voltage that described power-supply device gathers described battery; Described PC also for sending electric discharge instruction to described power-supply device, to control described battery at described discharge target temperature, discharges to described power-supply device with the sparking voltage that described electric discharge instruction comprises; Wherein, described electric discharge instruction comprises the preset value of sparking voltage, discharge capacity; Stop when detecting that discharge capacity reaches described preset value discharging and exporting test report; Wherein, described test report at least comprises open-circuit voltage and this discharge capacity of described battery.Described constant temperature oven also for receiving PC when detecting that described cell voltage reaches described predeterminated voltage, the described discharge target temperature value of transmission, and arranging according to described discharge target temperature value; Described power-supply device also for receiving PC when detecting that described cell voltage reaches described predeterminated voltage, the instruction of the open-circuit voltage of the described battery of described collection of transmission, and gather the open-circuit voltage of described battery; Described power-supply device also for receiving the described electric discharge instruction that described PC sends, to control described battery at described discharge target temperature, discharges to described power-supply device with the sparking voltage that described electric discharge instruction comprises; Wherein, described electric discharge instruction comprises the preset value of sparking voltage, discharge capacity; Described PC, also for when detecting that discharge capacity reaches described preset value, controlling described battery and stopping discharging and exporting test report; Wherein, described test report at least comprises open-circuit voltage and this discharge capacity of described battery.
Wherein, described PC also comprises the lower threshold of sparking voltage lower threshold or discharge current to the electric discharge instruction that described power-supply device sends.
Wherein, when described electric discharge instruction comprise sparking voltage, discharge capacity preset value, sparking voltage lower threshold time, described PC, specifically for when detecting that discharge capacity reaches described preset value, obtains the first voltage of battery; When described first voltage is greater than described sparking voltage lower threshold, controls described battery and continue to discharge to described power-supply device; When described first voltage is less than or equal to described sparking voltage lower threshold, controls described battery and stop discharging and exporting test report.
Wherein, when described electric discharge instruction comprise sparking voltage, discharge capacity preset value, discharge current lower threshold time, described PC, when detecting that discharge capacity reaches described preset value, obtains the first electric current of battery; When described first electric current is greater than the lower threshold of described discharge current, control described battery and continue to discharge to described power-supply device; When described first electric current is less than or equal to the lower threshold of described discharge current, controls described battery and stop discharging and exporting test report.
Wherein, described PC also for stopping when detecting that discharge capacity reaches preset value discharging and after exporting test report, according to described test report to described battery electric quantity modeling, to analyze described battery.
Such scheme, controls the automatic test of discharge and recharge of the complete battery pair of working condition of power-supply device, constant temperature oven, battery by PC.Because power-supply device has constant current input/output function, when not using electronic load, can adopt and realizing battery testing, reduce testing cost.
Accompanying drawing explanation
Fig. 1 is the structural representation of the application's battery debug system one embodiment;
Fig. 2 is the schematic flow sheet of the application's battery testing method one embodiment;
Fig. 3 is the schematic flow sheet of another embodiment of the application's battery testing method.
Embodiment
In below describing, in order to illustrate instead of in order to limit, propose the detail of such as particular system structure, interface, technology and so on, thoroughly to understand the application.
Consult Fig. 1, Fig. 1 is the structural representation of the application's battery debug system one embodiment.This battery test system implementing you comprises: PC 101, battery 102, constant temperature oven 103, power-supply device 104 and interface bus driver 105.Wherein, PC 101, battery 102, constant temperature oven 103, power-supply device 104 by interface bus driver 105 and bus together integrated.PC 101 is connected by USB line with interface bus driver 105, and battery 102, constant temperature oven 103 and power-supply device pass through) be general purpose interface bus (General-PurposeInterfaceBus, GPIB) connecting interface bus driver 105.Battery 102 is positioned in constant temperature oven 103.Power-supply device 104 can export steady current, and allows input current.
In the present embodiment, adopt RS232 to communicate between battery 102 with constant temperature oven 103, but be not limited to this, in other embodiments, can also communicate for RS485, or other communication modes, be not restricted herein.
PC 102 is for sending target charging temperature value to constant temperature oven 103, arrange according to target charging temperature value to control constant temperature oven 103, and for sending charging instruction to power-supply device 104, battery 102 is charged according to charging instruction to control power-supply device 104.Wherein, charging instruction comprises charging voltage value and charging current value; When the voltage of battery reaches predeterminated voltage, power-supply device 104 stops charging to battery 102.
The target charging temperature value that constant temperature oven 103 sends for receiving PC 101, and arrange according to target charging temperature, can charge under this target charging temperature to make battery 102.
The charging instruction that power-supply device 104 sends for receiving PC 101, and according to charging instruction, battery is charged.
PC 101 also for when detecting that battery 102 voltage reaches predeterminated voltage, sends discharge target temperature value to constant temperature oven 103, arranges according to discharge target temperature value to control constant temperature oven 103; And send the instruction of the open-circuit voltage gathering battery 102 to power-supply device 104, to control the open-circuit voltage that power-supply device 104 gathers battery 102.
PC 101 is also for sending electric discharge instruction to power-supply device 104, and to control battery 102 at discharge target temperature, the sparking voltage comprised with instruction of discharging discharges to power-supply device 104; Wherein, instruction of discharging comprises the preset value of sparking voltage, discharge capacity; And discharge for stopping when detecting that discharge capacity reaches preset value and export test report; Wherein, described test report at least comprises open-circuit voltage and this discharge capacity of described battery.
Alternatively, PC 101 also comprises the lower threshold of sparking voltage lower threshold or discharge current to the electric discharge instruction that power-supply device 104 sends.
Constant temperature oven 103 also for receiving PC 101 when detecting that battery 102 voltage reaches predeterminated voltage, the discharge target temperature value of transmission, and is arranged according to discharge target temperature value.
Power-supply device 104 also for receiving PC 101 when detecting that battery 102 voltage reaches predeterminated voltage, the instruction of the open-circuit voltage of the collection battery 102 of transmission, and gathers the open-circuit voltage of battery 102.
Power-supply device 104 is also for receiving the electric discharge instruction that PC 101 sends, and to control battery 102 at discharge target temperature, the sparking voltage comprised with instruction of discharging discharges to power-supply device 104; Wherein, instruction of discharging comprises the preset value of sparking voltage, discharge capacity.
PC 101, also for when detecting that discharge capacity reaches preset value, controlling battery 102 and stopping discharging and exporting test report; Wherein, test report at least comprises open-circuit voltage and this discharge capacity of battery 102.
Alternatively, when instruction of discharging comprise sparking voltage, discharge capacity preset value, sparking voltage lower threshold time, PC 101, specifically for when detecting that discharge capacity reaches preset value, obtains the first voltage of battery 102; When the first voltage is greater than sparking voltage lower threshold, controls battery 102 and continue to discharge to power-supply device 104; When the first voltage is less than or equal to sparking voltage lower threshold, controls battery 102 and stop discharging and exporting test report.
Alternatively, when instruction of discharging comprise sparking voltage, discharge capacity preset value, discharge current lower threshold time, PC 101, when detecting that discharge capacity reaches preset value, obtains the first electric current of battery 102; When the first electric current is greater than the lower threshold of discharge current, control battery 102 and continue to discharge to power-supply device 104; When the first electric current is less than or equal to the lower threshold of discharge current, controls battery 102 and stop discharging and exporting test report.
Alternatively, PC 101 stops when detecting that discharge capacity reaches preset value discharging and after exporting test report, according to the electricity modeling of test report to battery 102, to analyze battery 102.
Concrete test process is as follows:
Such as, when test macro connects by tester, when sending test starting command to PC, PC 101 sends target charging temperature value to constant temperature oven 103, arranges according to target charging temperature value to control constant temperature oven 103; And send charging instruction to power-supply device 104, to control charging voltage that power-supply device 104 comprises according to charging instruction, charging current charges to battery 102.And when reaching predeterminated voltage at the voltage of battery 102, controlling power-supply device 104 and stopping charging to battery 102.Wherein, charging instruction comprises charging voltage value and charging current value.Wherein, charging current is steady state value.
Current Temperatures, when receiving the target charging temperature value that PC 101 sends, is set to target charging temperature by constant temperature oven 103.
Power-supply device 104 is when receiving the charging instruction that PC 101 sends, and the charging voltage comprised according to charging instruction, charging current are charged to battery 102.And when detecting that the voltage of battery 102 reaches predeterminated voltage, power-supply device 104 stops charging to battery 102.
When PC 101 detects that battery 102 voltage reaches predeterminated voltage, when power-supply device 104 stops charging to battery 102, send discharge target temperature value to constant temperature oven 103, and send the instruction of the open-circuit voltage gathering battery 102 to power-supply device 104.
Current Temperatures, when receiving the discharge target temperature value that PC 101 sends, is set to discharge target temperature, can discharges to make battery 102 at discharge target temperature by constant temperature oven 103.
Power-supply device 104 responds this instruction when receiving the instruction of open-circuit voltage of the collection battery 102 that PC 101 sends, and gathers the open-circuit voltage of battery 102.And the open-circuit voltage values collected is returned to PC 101.
PC 101 is after receiving the open-circuit voltage values that power-supply device 104 returns, and PC 101 sends electric discharge instruction to power-supply device 104, and to control battery 102 at discharge target temperature, the sparking voltage comprised with instruction of discharging discharges to power-supply device 104.Wherein, instruction of discharging comprises the preset value of sparking voltage, discharge capacity.
Alternatively, PC 101 also comprises the lower threshold of sparking voltage lower threshold or discharge current to the electric discharge instruction that power-supply device 104 sends.
Power-supply device 104 is when receiving the electric discharge instruction that PC 101 sends, and control battery 102 at discharge target temperature, the sparking voltage comprised with instruction of discharging discharges to power-supply device 104.Wherein, battery 102 can discharge to power-supply device 104 by a steady current.
PC 101, when battery 102 pairs of power-supply devices 104 start to discharge, detects the discharge capacity of battery 102, controls battery 102 stop discharging to power-supply device 104 and exporting test report when detecting that discharge capacity reaches preset value.Wherein, test report at least comprises open-circuit voltage and this discharge capacity of battery 102.Wherein, discharge capacity is the long-pending of discharge current and discharge time.
Alternatively, when instruction of discharging comprise sparking voltage, discharge capacity preset value, sparking voltage lower threshold time, PC 101, when detecting that discharge capacity reaches preset value, obtains the first voltage of battery 102; When the first voltage is greater than sparking voltage lower threshold, controls battery 102 and continue to discharge to power-supply device 104; When confirmation first voltage is less than or equal to sparking voltage lower threshold, controls battery 102 and stop discharging and exporting test report.
Alternatively, when instruction of discharging comprise sparking voltage, discharge capacity preset value, discharge current lower threshold time, PC 101, when detecting that discharge capacity reaches preset value, obtains the first electric current of battery 102; When the first electric current is greater than the lower threshold of discharge current, control battery 102 and continue to discharge to power-supply device 104; When confirmation first electric current is less than the lower threshold of discharge current, controls battery 102 and stop discharging and exporting test report.
Alternatively, PC 101 stops when detecting that discharge capacity reaches preset value discharging and after exporting test report, draws the voltage-capacity curve of battery 102 at certain temperature, to analyze battery 102 according to test report.
Such scheme, controls the automatic test of discharge and recharge of the complete battery pair of working condition of power-supply device, constant temperature oven, battery by PC.Because power-supply device has constant current input/output function, when not using electronic load, can adopt and realizing battery testing, reduce testing cost.
Refer to Fig. 2, Fig. 2 is the schematic flow sheet of the application's battery testing method one embodiment.The present embodiment sets out with the angle of PC and is described.The battery testing method of this enforcement comprises the following steps:
S101:PC machine sends target charging temperature value to constant temperature oven, arranges according to described target charging temperature value to control described constant temperature oven; And send charging instruction to power-supply device, battery is charged according to described charging instruction to control described power-supply device.
Such as, when test macro connects by tester, when sending test starting command to PC, PC sends target charging temperature value to constant temperature oven, arranges when receiving target charging temperature value to control constant temperature oven according to target charging temperature value; And send charging instruction to power-supply device, to control power-supply device when receiving charging instruction, the charging voltage comprised according to charging instruction, charging current are charged to battery 102.And when reaching predeterminated voltage at the voltage of battery 102, controlling power-supply device 104 and stopping charging to battery 102.
Wherein, charging instruction comprises charging voltage value and charging current value.Charging current can be steady state value or approximately constant value.Predeterminated voltage can be arranged according to the rated voltage of battery, is not restricted herein.
S102: when detecting that described cell voltage reaches described predeterminated voltage, sends discharge target temperature value to described constant temperature oven, arranges to control described constant temperature oven according to described discharge target temperature value; And send the instruction of the open-circuit voltage gathering described battery to described power-supply device, to control the open-circuit voltage that described power-supply device gathers described battery.
When PC 101 detects that battery 102 voltage reaches predeterminated voltage, when power-supply device 104 stops charging to battery 102, discharge target temperature value is sent to constant temperature oven 103, to control constant temperature oven when receiving discharge target temperature value, Current Temperatures is set to discharge target temperature, discharges at discharge target temperature to enable battery.
PC sends the instruction of the open-circuit voltage gathering battery to power-supply device, responding this instruction, gathering the open-circuit voltage of battery, and the open-circuit voltage values collected is returned to PC to control power-supply device 104 when receiving the instruction of the open-circuit voltage gathering battery.
S103: send electric discharge instruction to described power-supply device, to control described battery at described discharge target temperature, discharge to described power-supply device with the sparking voltage that described electric discharge instruction comprises.
PC, after receiving the open-circuit voltage values that power-supply device returns, sends electric discharge instruction to power-supply device, to control battery at discharge target temperature, discharges with the sparking voltage that instruction of discharging comprises to power-supply device.
Wherein, instruction of discharging comprises the preset value of sparking voltage, discharge capacity.Battery can the electric current of a steady current or approximately constant discharge to power-supply device.
Alternatively, alternatively, PC can also comprise the lower threshold of sparking voltage lower threshold or discharge current to the electric discharge instruction that power-supply device sends, but is not limited to this, can also comprise other parameters.
S104: when detecting that discharge capacity reaches described preset value, controls described battery and stops discharging and exporting test report.
PC, when battery starts to discharge to power-supply device, detects the discharge capacity of battery, when detecting that discharge capacity reaches preset value, controlling battery and stopping discharging to power-supply device and exporting test report.Wherein, test report at least comprises open-circuit voltage and this discharge capacity of battery.Discharge capacity is the long-pending of discharge current and discharge time.
Such scheme, controls the automatic test of discharge and recharge of the complete battery pair of working condition of power-supply device, constant temperature oven, battery by PC.Because power-supply device has constant current input/output function, when not using electronic load, can adopt and realizing battery testing, reduce testing cost.
Refer to Fig. 3, Fig. 3 is the schematic flow sheet of another embodiment of the application's battery testing method.The present embodiment sets out with the angle of PC and is described.The battery testing method of this enforcement comprises the following steps:
S201:PC machine sends target charging temperature value to constant temperature oven, arranges according to described target charging temperature value to control described constant temperature oven; And send charging instruction to power-supply device, battery is charged according to described charging instruction to control described power-supply device.
Step S201 is identical with the step S101 in a upper embodiment, specifically refers to the associated description of an embodiment step S101, does not repeat herein.
S202: when detecting that described cell voltage reaches described predeterminated voltage, sends discharge target temperature value to described constant temperature oven, arranges to control described constant temperature oven according to described discharge target temperature value; And send the instruction of the open-circuit voltage gathering described battery to described power-supply device, to control the open-circuit voltage that described power-supply device gathers described battery.
Step S202 is identical with the step S102 in a upper embodiment, specifically refers to the associated description of an embodiment step S102, does not repeat herein.
S203: send electric discharge instruction to described power-supply device, to control described battery at described discharge target temperature, discharge to described power-supply device with the sparking voltage that described electric discharge instruction comprises.
Step S203 is identical with the step S103's in a upper embodiment, specifically refers to the associated description of an embodiment step S103, does not repeat herein.
After execution of step S203, when discharge instruction comprise sparking voltage, discharge capacity preset value, sparking voltage lower threshold time, perform step S204 ~ S206, S210.
When discharge instruction comprise sparking voltage, discharge capacity preset value, discharge current lower threshold time, perform step S207 ~ S209, S210.
S204: described PC, when detecting that discharge capacity reaches described preset value, obtains the first voltage of battery.
PC, when battery starts to discharge to power-supply device, detects the discharge capacity of battery.When detecting that discharge capacity reaches preset value, obtaining the voltage that battery is current, being designated as the first voltage.
Be understandable that PC can detect the first voltage in real time, also can detect once every Preset Time, not be restricted herein.
First voltage and sparking voltage lower threshold compare by PC, when the first voltage is greater than sparking voltage lower threshold, perform step S205; When the first voltage is less than or equal to sparking voltage lower threshold, perform step S206.
S205: when described first voltage is greater than described sparking voltage lower threshold, controls described battery and continues to discharge to described power-supply device.
First voltage and sparking voltage lower threshold (such as 3.4V, but be not limited to this) compare by PC, when determining that the first voltage is greater than sparking voltage lower threshold, controlling battery and continuing to discharge to power-supply device.S206: when described first voltage is less than or equal to described sparking voltage lower threshold, controls described battery and stops discharging and exporting test report.PC compares the first voltage and sparking voltage lower threshold (such as 3.4V, but be not limited to this), when determining that the first voltage is less than or equal to sparking voltage lower threshold, controlling battery and stopping to power-supply device electric discharge, and exporting test report.Wherein, test report at least comprises open-circuit voltage and this discharge capacity of battery.Discharge capacity is the long-pending of discharge current and discharge time.
S207: described PC, when detecting that discharge capacity reaches described preset value, obtains the first electric current of battery.
PC, when battery starts to discharge to power-supply device, detects the discharge capacity of battery.When detecting that discharge capacity reaches preset value, obtaining the electric current of the discharge circuit of battery, and being designated as the first electric current.Be understandable that PC can detect the first electric current in real time, also can detect once every Preset Time, not be restricted herein.
First electric current and discharge current lower threshold compare by PC, when the first electric current is greater than discharge current lower threshold, perform step S208; When the first electric current is less than or equal to discharge current lower threshold, perform step S209.
S208: when described first electric current is greater than the lower threshold of described discharge current, controls described battery and continues to discharge to described power-supply device.
PC compares the first electric current and discharge current lower threshold (such as 0.5mA, but be not limited to this), when determining that the first electric current is greater than the lower threshold of discharge current, controlling battery and continuing to discharge to power-supply device.
S209: when described first electric current is less than or equal to the lower threshold of described discharge current, controls described battery and stops discharging and exporting test report.
PC compares the first electric current and discharge current lower threshold (such as, 0.5mA, but be not limited to this), when the first electric current is less than or equal to discharge current lower threshold, controls battery and stops to power-supply device electric discharge, and export test report.Wherein, test report at least comprises open-circuit voltage and this discharge capacity of battery.Discharge capacity is the long-pending of discharge current and discharge time.
S210: described PC according to described test report to described battery electric quantity modeling, to analyze described battery.
PC, after execution of step S206 or S209, draws the voltage-capacity curve of battery at certain temperature, to analyze battery according to test report.
Such scheme, controls the automatic test of discharge and recharge of the complete battery pair of working condition of power-supply device, constant temperature oven, battery by PC, and according to test report to battery electric quantity modeling analysis.Because power-supply device has constant current input/output function, when not using electronic load, can adopt and realizing battery testing, reduce testing cost.
In more than describing, in order to illustrate instead of in order to limit, propose the detail of such as particular system structure, interface, technology and so on, thoroughly to understand the application.But, it will be clear to one skilled in the art that and also can realize the application in other embodiment not having these details.In other situation, omit the detailed description to well-known device, circuit and method, in order to avoid unnecessary details hinders the description of the application.
Claims (10)
1. a battery testing method, is characterized in that, described method comprises:
PC sends target charging temperature value to constant temperature oven, arranges according to described target charging temperature value to control described constant temperature oven; And send charging instruction to power-supply device, battery is charged according to described charging instruction to control described power-supply device; Wherein, described charging instruction comprises charging voltage value and charging current value; When the voltage of described battery reaches predeterminated voltage, described power-supply device stops charging to described battery;
When detecting that described cell voltage reaches described predeterminated voltage, sending discharge target temperature value to described constant temperature oven, arranging according to described discharge target temperature value to control described constant temperature oven; And send the instruction of the open-circuit voltage gathering described battery to described power-supply device, to control the open-circuit voltage that described power-supply device gathers described battery;
Send electric discharge instruction to described power-supply device, to control described battery at described discharge target temperature, discharge to described power-supply device with the sparking voltage that described electric discharge instruction comprises; Wherein, described electric discharge instruction comprises the preset value of sparking voltage, discharge capacity;
When detecting that discharge capacity reaches described preset value, controlling described battery and stopping discharging and exporting test report; Wherein, described test report at least comprises open-circuit voltage and this discharge capacity of described battery.
2. method according to claim 1, is characterized in that, described electric discharge instruction also comprises the lower threshold of sparking voltage lower threshold or discharge current.
3. method according to claim 2, it is characterized in that, when described electric discharge instruction comprise sparking voltage, discharge capacity preset value, sparking voltage lower threshold time, described PC stops when detecting that discharge capacity reaches described preset value discharging and the step exporting test report comprises:
When detecting that discharge capacity reaches described preset value, obtain the first voltage of battery;
When described first voltage is greater than described sparking voltage lower threshold, controls described battery and continue to discharge to described power-supply device;
When described first voltage is less than or equal to described sparking voltage lower threshold, controls described battery and stop discharging and exporting test report.
4. method according to claim 1, it is characterized in that, when described electric discharge instruction comprise sparking voltage, discharge capacity preset value, discharge current lower threshold time, described PC stops when detecting that discharge capacity reaches described preset value discharging and the step exporting test report comprises:
When detecting that discharge capacity reaches described preset value, described PC obtains the first electric current of battery;
When described first electric current is greater than the lower threshold of described discharge current, control described battery and continue to discharge to described power-supply device;
When described first electric current is less than or equal to the lower threshold of described discharge current, controls described battery and stop discharging and exporting test report.
5. the method according to any one of Claims 1-4, it is characterized in that, described PC stops when detecting that discharge capacity reaches preset value discharging and after exporting the step of test report, described method also comprises: described PC according to described test report to described battery electric quantity modeling, to analyze described battery.
6. a battery test system, is characterized in that, described battery test system comprises: PC, power-supply device, battery, constant temperature oven;
Described PC is used for sending target charging temperature value to constant temperature oven, arrange according to described target charging temperature value to control described constant temperature oven, and for sending charging instruction to power-supply device, battery is charged according to described charging instruction to control described power-supply device; Wherein, described charging instruction comprises charging voltage value and charging current value; When the voltage of described battery reaches predeterminated voltage, described power-supply device stops charging to described battery;
The described target charging temperature value that described constant temperature oven sends for receiving described PC, and arrange according to described target charging temperature value;
The described charging instruction that described power-supply device sends for receiving described PC, and according to described charging instruction, battery is charged;
Described PC, also for when detecting that described cell voltage reaches described predeterminated voltage, sending discharge target temperature value to described constant temperature oven, arranging to control described constant temperature oven according to described discharge target temperature value; And send the instruction of the open-circuit voltage gathering described battery to described power-supply device, to control the open-circuit voltage that described power-supply device gathers described battery;
Described PC also for sending electric discharge instruction to described power-supply device, to control described battery at described discharge target temperature, discharges to described power-supply device with the sparking voltage that described electric discharge instruction comprises; Wherein, described electric discharge instruction comprises the preset value of sparking voltage, discharge capacity; Stop when detecting that discharge capacity reaches described preset value discharging and exporting test report; Wherein, described test report at least comprises open-circuit voltage and this discharge capacity of described battery.
Described constant temperature oven also for receiving PC when detecting that described cell voltage reaches described predeterminated voltage, the described discharge target temperature value of transmission, and arranging according to described discharge target temperature value;
Described power-supply device also for receiving PC when detecting that described cell voltage reaches described predeterminated voltage, the instruction of the open-circuit voltage of the described battery of described collection of transmission, and gather the open-circuit voltage of described battery;
Described power-supply device also for receiving the described electric discharge instruction that described PC sends, to control described battery at described discharge target temperature, discharges to described power-supply device with the sparking voltage that described electric discharge instruction comprises; Wherein, described electric discharge instruction comprises the preset value of sparking voltage, discharge capacity;
Described PC, also for when detecting that discharge capacity reaches described preset value, controlling described battery and stopping discharging and exporting test report; Wherein, described test report at least comprises open-circuit voltage and this discharge capacity of described battery.
7. battery test system according to claim 6, is characterized in that, described PC also comprises the lower threshold of sparking voltage lower threshold or discharge current to the electric discharge instruction that described power-supply device sends.
8. battery test system according to claim 7, it is characterized in that, when described electric discharge instruction comprise sparking voltage, discharge capacity preset value, sparking voltage lower threshold time, described PC, specifically for when detecting that discharge capacity reaches described preset value, obtains the first voltage of battery; When described first voltage is greater than described sparking voltage lower threshold, controls described battery and continue to discharge to described power-supply device; When described first voltage is less than or equal to described sparking voltage lower threshold, controls described battery and stop discharging and exporting test report.
9. battery test system according to claim 7, it is characterized in that, when described electric discharge instruction comprise sparking voltage, discharge capacity preset value, discharge current lower threshold time, described PC, when detecting that discharge capacity reaches described preset value, obtains the first electric current of battery; When described first electric current is greater than the lower threshold of described discharge current, control described battery and continue to discharge to described power-supply device; When described first electric current is less than or equal to the lower threshold of described discharge current, controls described battery and stop discharging and exporting test report.
10. the battery test system according to any one of claim 6 to 9, it is characterized in that, described PC also for stopping when detecting that discharge capacity reaches preset value discharging and after exporting test report, according to described test report to described battery electric quantity modeling, to analyze described battery.
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