CN108011130B

CN108011130B - Soft package lithium ion battery line isolation mounting structure

Info

Publication number: CN108011130B
Application number: CN201711218301.1A
Authority: CN
Inventors: 郭海
Original assignee: Anhui Zhengxi Biaowang New Energy Co Ltd
Current assignee: Anhui Zhengxi Biaowang New Energy Co Ltd
Priority date: 2017-11-28
Filing date: 2017-11-28
Publication date: 2020-11-10
Anticipated expiration: 2037-11-28
Also published as: CN108011130A

Abstract

The invention provides a soft package lithium ion battery line isolation mounting structure, which relates to the technical field of soft package lithium ion battery mounting, and is characterized in that an insulation protection division bar is arranged at the top of an insulation positioning bracket; and between every two busbars of the battery module; the insulation protection division bar is a strip-shaped division part, and mounting parts are arranged at two ends of the insulation protection division bar; the mounting part is provided with an assembling hole matched with the top busbar mounting hole of the insulating positioning bracket, and the insulating protection division bar is mounted on the top of the insulating positioning bracket through a bolt, so that short circuit of a battery cell can be effectively prevented, and the mounting part is safer and more reliable; the battery module is vertically arranged in the spaced space in a clinging manner, so that the package deformation of the soft package after long-time use can be effectively avoided, and the battery module is safer and more reliable, simple and compact in structure, economical and practical, reasonable in arrangement and wide in application range.

Description

Soft package lithium ion battery line isolation mounting structure

Technical Field

The invention relates to the technical field of soft package lithium ion battery installation, in particular to a soft package lithium ion battery line isolation installation structure.

Background

The soft package lithium ion battery consists of a positive electrode material, a negative electrode material, electrolyte, a diaphragm, a tab and a shell, and in order to ensure that the lithium ion battery can be charged and discharged normally, the inner cavity of the battery must be in anhydrous vacuum. The tab is a component for conducting electricity of the battery, one end of the tab is arranged in the inner cavity of the battery, and the other end of the tab is exposed outside the battery. The positive pole of soft package lithium ion battery changes the nickel area with aluminium, and the negative pole is with pure nickel area, and the soldering tin when soft package lithium ion battery work needs install the battery protection shield additional of being convenient for. The middle part of the battery is attached by a tab adhesive which can be melted, the upper surface and the lower surface of a tab metal band are respectively wrapped by a layer of tab adhesive, and the tab plays a role in sealing when passing through the battery shell. The existing soft package lithium ion battery has complex circuit installation and poor protection effect of circuit convergence, and needs to be improved urgently.

Disclosure of Invention

The invention aims to solve the problems in the prior art, and provides a soft package lithium ion battery line isolation mounting structure which is reasonable in design and compact in structure.

In order to achieve the purpose, the invention is realized by the following technical scheme:

a soft package lithium ion battery line isolation mounting structure is disclosed, wherein a battery module comprises two monomer battery cells which are arranged in parallel; the battery module is respectively positioned from the containing of the left side edge and the right side edge of the battery module through the insulating positioning bracket; the top of the insulating positioning support is also provided with a bus bar, and the bus bar comprises a composite bar and wiring bars arranged at two ends of the battery module in the length direction and fixedly connected to the top of an upper cross rod of the insulating positioning support of the battery module; the positive electrode lug and the negative electrode lug sequentially penetrate out of the groove hole in the upper transverse rod and the connecting hole in the composite row respectively; bending the lug of the single battery cell to the corresponding material on the contact busbar; the insulation positioning bracket is also provided with an insulation protection division bar, and the insulation protection division bar is arranged at the top of the insulation positioning bracket; and is arranged between every two busbars of the battery module.

Furthermore, the insulation protection division bar is a strip-shaped division part, and mounting parts are arranged at two ends of the insulation protection division bar; the installation department be equipped with the equipment hole that insulating positioning bracket's top busbar mounting hole matches, and will through the bolt insulating protection parting bead is installed insulating positioning bracket's top.

Compared with the prior art, the invention has the beneficial effects that:

according to the invention, the insulation protection parting strips are arranged, so that the insulation protection of the composite row is realized, the short circuit of the battery cell can be effectively prevented, and the safety and the reliability are higher; the battery module is vertically arranged in the spaced space in a clinging manner, so that the package deformation of the soft package after long-time use can be effectively avoided, and the battery module is safer and more reliable, simple and compact in structure, economical and practical, reasonable in arrangement and wide in application range.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic view of an installation three-dimensional structure of a battery module according to the present invention;

fig. 2 is a schematic view of an installation three-dimensional structure of the battery module according to the present invention;

FIG. 3 is a schematic perspective view of a battery module according to the present invention;

fig. 4 is a longitudinal installation sectional view of a battery module according to the present invention;

fig. 5 is an enlarged schematic view of a portion a of an installation cross-sectional view of a battery module according to the present invention;

fig. 6 is a transverse installation sectional view of a battery module according to the present invention;

fig. 7 is a schematic view of an internal installation three-dimensional structure of the battery module according to the present invention;

fig. 8 is a schematic view of a line-in-line mounting structure of a battery module according to the present invention;

fig. 9 is a schematic perspective view of an insulating positioning bracket of a battery module according to the present invention;

fig. 10 is a schematic perspective view of an insulating positioning bracket of a battery module according to the present invention;

fig. 11 is a schematic view of a line card structure of a battery module according to the present invention;

fig. 12 is a schematic view illustrating an installation explosion structure of a battery module of the battery module according to the present invention;

fig. 13 is a schematic perspective view of a heat-conducting aluminum plate of the battery module of the present invention;

fig. 14 is a schematic perspective view of a side pressing plate of the battery module according to the present invention;

fig. 15 is a schematic perspective view of an insulating protection division bar of a battery module according to the present invention;

fig. 16 is a schematic side plate perspective view of the battery module of the present invention;

the reference numbers in the figures illustrate: 1. a battery module; 11. a single cell; 111. a positive tab; 112. a negative tab; 113. a connection support part; 2. an accommodating component; 21. a battery module positioning assembly; 211. an insulating positioning bracket; 2111. an upper cross bar; 21111. a groove hole; 2112. a lower cross bar; 21121. a limiting step; 2113. a line card; 21131. a first straight line segment; 21132. a second fold line segment; 21133. a third straight line segment; 2114. positioning pins; 2115. positioning blocks; 2116. a boss portion; 21161. a through hole is penetrated; 2117. a side lever; 21171. a card slot; 212. a pull rod; 2121. a connecting nut; 22. An integral support assembly; 221. a side plate; 2211. a placement groove; 2212. connecting the slotted holes; 222. side pressing plates; 2221. lifting lugs; 2222. lightening holes; 2223. a U-shaped groove; 223. clamping the nut; 224. a PET bandage; 3. a composite row; 31. a copper plate; 32. an aluminum plate; 40. connecting holes; 60. a bolt; 4. heat conducting silica gel; 5. a heat conducting aluminum plate; 51. ear folding; 6. a line bank; 70. a bolt; 7. an insulating cover; 71. a recessed portion; 8. insulating protection parting strips; 81. an installation part; 82. assembling holes; 83. a barrier portion; 9. and (4) an epoxy board.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The invention will be further explained with reference to the accompanying drawings in which:

with reference to fig. 1, fig. 2, fig. 3, fig. 4, fig. 5, fig. 6, fig. 7, fig. 8, fig. 9, fig. 10, fig. 11, fig. 12, fig. 13, fig. 14, fig. 15, and fig. 16, a soft-package lithium ion battery module structure includes a battery module 1 and a receiving assembly 2, where the battery module 1 includes two unit cells 11 arranged in parallel and in parallel; the accommodating assembly 2 comprises a battery module positioning assembly 21 and an integral supporting assembly 22, and the battery modules 1 are vertically arranged and are clamped and arranged in a vertical array mode through the battery module positioning assemblies 21 on the two sides; the battery module positioning component 21 and the battery module 1 are connected into an integral structure through a peripheral integral supporting component 22; at least one group of the battery modules 1.

The end parts of the single battery cells 11 are respectively provided with a positive electrode tab 111 and a negative electrode tab 112; the connection supporting part 113 at the middle position of the width end of the single battery cell 11 is obliquely arranged towards the inner side of the single battery cell 11; the positive tab 111 and the negative tab 112 are disposed on the top end of the connection support portion 113, and the positive tab 111 and the negative tab 112 are disposed in parallel with the cell 11.

The battery module 1 includes two single battery cells 11, the two single battery cells 11 are symmetrically arranged, the connection supporting portions 113 of the two symmetrically arranged single battery cells 11 are symmetrically arranged inward, and the vertical plane of the battery cell portion between the two single battery cells 11 is bonded by an adhesive such as a double-sided tape; the tabs of the two single battery cells 11 are relatively attached to each other, and the connection support portions 113 at the lower ends of the tabs are separately disposed.

The battery module positioning assembly 21 includes a plurality of insulating positioning brackets 211 and a plurality of tie rods 212, the plurality of insulating positioning brackets 211 are arranged in an array along a width direction, and the plurality of insulating positioning brackets 211 are arranged in an array by the tie rods 212 penetrating corners of the insulating positioning brackets 211. The insulating positioning bracket 211 is of a square structure, protruding portions 2116 are arranged at four corners of the insulating positioning bracket 211, and through holes 21161 matched with the pull rod 212 are arranged on the protruding portions 2116; the coupling nuts 2121 are provided at both ends of the draw bar 212, and the entire battery module mounting structure is clamped by adjusting the coupling nuts 2121 of the draw bar 212. And thereby form the protection to the inside conflux line through the bellying, it is safer.

The top of the insulating positioning brackets 211 is also provided with a bus bar, the bus bar comprises a composite bar 3 and wiring bars 6 arranged at two ends of the battery module in the length direction, and the wiring bars 6 are copper bars and are in a copper plate 31 structure; and is connected with the integral supporting component 22 through a bolt 70, the composite busbar 3 is a composite busbar which is arranged by clinging to the surfaces of the copper plate 31 and the aluminum plate 32, the copper plate 31 and the aluminum plate 32 are both provided with a connecting hole 40, and a bolt 60 is fixedly connected to the top of an upper cross bar 2111 of the insulating positioning bracket 211 of the battery module through the connecting hole 40.

The positive electrode tab of the single battery cell 11 is made of aluminum, and the end of the positive electrode tab, which is penetrated through the connecting hole 40 of the composite bar 3, is connected to the busbar of which the side, which is far away from the single battery cell 11, of the composite bar 3 is made of an aluminum plate 32; 11 utmost point ears of negative pole monomer electricity core wear to put the connecting hole 40 of row 30 of assembling for the nickel material end, and compound row 3 deviates from 11 one sides of monomer electricity core and is on the busbar of copper 31, then buckle the material that corresponds on the utmost point ear of monomer electricity core 11 to the contact busbar, and 11 utmost point ears of monomer electricity core are the anodal aluminum plate 32 that connects 3 of the compound row of busbar aluminum material of aluminum material promptly, and 11 utmost point ears of monomer electricity core connect 3's copper 31 of the compound row of busbar aluminum material for the negative pole of nickel material. And the composite bar 3 is fastened to the insulating positioning bracket 211 of the battery module by passing the bolts 60 through the connection holes 40. The bus bar designed in this way does not need the integrated bus bar welded by the copper and aluminum mixed mode, namely, the direct-current argon arc welding machine and the alternating-current argon arc welding machine are not needed to weld copper and aluminum, so that the processing cost is reduced, and the bus bar only needs to punch and form the copper material and the aluminum material, so that the production efficiency is high. In addition, the positive electrode tab of the cell 11 is an aluminum plate 32 of the aluminum composite bar 3 directly connected to the busbar by the aluminum material, and the negative electrode tab of the cell 11 is a copper plate 31 of the copper composite bar 3 directly connected to the busbar by the nickel material, so that the conduction resistivity is relatively stable, and the working power is relatively reduced.

The insulating positioning brackets 211 are respectively arranged at the left side and the right side of the battery module 1, and the insulating positioning brackets 211 are of a frame structure; the cell parts of the battery modules 1 are arranged in the frame inner cavities of the two insulation positioning brackets 211; the two insulating positioning brackets 211 are abutted to the connection supporting part 113 on the battery module 1 from the left side and the right side of the battery module 1; the side edge of the upper cross bar 2111 of the insulating positioning bracket 211 is tightly matched with the obliquely arranged connection supporting part 113 of the battery module 1, and the positive tab 111 and the negative tab 112 sequentially and respectively penetrate out of the groove hole 21111 on the upper cross bar 2111 and the connection hole 40 of the composite row 3; the lower cross bar 2112 of the insulating positioning bracket 211 is further provided with a limiting step 21121, and the limiting step 21121 is matched with the outer contour size of the bottom of the battery module 1 core part; through respectively battery module 1's left and right both sides the chamber that holds that insulating locating support 211 formed places battery module 1 to through pressing from both sides battery module 1's left and right both sides insulating locating support 211 realizes right battery module 1 presss from both sides tight location. The insulating positioning bracket 211 is made of plastic material.

The insulating positioning support 211 is of a rectangular frame structure, and the inner side cavity structure of the insulating positioning support 211 is matched with the outer contour size of the battery cell part of the battery module 1; a line card 2113 is arranged at the top end of the insulating positioning bracket 211, and the line card 2113 is arranged at the middle position; the line card 2113 is provided with a strip-shaped opening, the strip-shaped opening comprises a first straight line segment 21131, a second folded line segment 21132 and a third straight line segment 21133, the first straight line segment 21131, the second folded line segment 21132 and the third straight line segment 21133 are sequentially connected, and the separation of the connection lines is realized through the bent strip-shaped opening, so that the connection lines are not known in order, the whole is attractive, and the installation and the maintenance are convenient; the left side surface and the right side surface of the insulating positioning bracket 211 are respectively provided with a positioning pin 2114 and a positioning block 2115; the positioning pin 2114 is provided at the lower portion, and the positioning block 2115 is provided with a side edge portion.

The battery module 1 is respectively positioned from the containing of the left side and the right side of the battery module 1 through the battery module positioning assembly 21, and finally the positioning of the battery module 1 is realized.

The heat-conducting silica gel 4 is respectively arranged on the left outer side edge and the right outer side edge of the battery module 1, and the heat-conducting silica gel 4 is arranged, so that the battery modules 1 are separated and blocked, a buffer effect can be achieved, and collision among the battery modules is effectively avoided; meanwhile, the heat of the battery module can be dissipated by arranging the heat-conducting silica gel 4; the pressure maintaining clamp of the battery module 1 can be realized, and the air expansion condition of the soft package lithium ion battery is effectively prevented.

Two liang still be equipped with heat conduction aluminum plate 5 between the battery module, heat conduction aluminum plate 5 establishes between two liang of relative heat conduction silica gel 4 that set up and extends along preceding, rear end respectively to run through insulating locating support 211 along draw-in groove 21171 on the side lever 2117 length direction, heat conduction aluminum plate 5's preceding, rear end portion all is equipped with book ear 51, book ear 51 is hugged closely preceding, the back side of insulating locating support 211.

The integral supporting assembly 22 comprises side plates 221 and side plates 222, the side plates 222 are arranged at the left end and the right end of the battery module positioning assembly 21, and the side plates 221 are matched with the insulating positioning bracket 211 in shape; the side plates 222 are arranged on the outer sides of the side plates 221 and matched with the sizes of the side plates 221; the pull rod 212 is arranged at the corner of the integral support assembly 22, the pull rod 212 penetrates through the side plate 221, the side plate 222 and the insulating positioning bracket 211, and the side plate 221, the side plate 222 and the insulating positioning bracket 211 are clamped and positioned by arranging clamping nuts 223 at two ends. The left end and the right end of the insulating positioning bracket 211 are correspondingly provided with the side plates 221 respectively, and the outer ends of the two side plates 221 are provided with the side pressing plates 222 respectively.

The plurality of lightening holes 2222 are further formed in the side compression plates 222, so that the weight of the side compression plates is greatly reduced, and the heat dissipation of the whole battery module is facilitated.

A PET binding band 224 is further arranged, and the PET binding band 224 is transversely sleeved on the integral supporting component 22 to realize transverse binding of the integral assembly group; both ends of the PET band 224 are disposed in the placement grooves 2211 of the side plates 221, and abut against the outer side pressure plates 222, so that the PET band 224 can be effectively prevented from shifting; and are respectively provided at upper and lower parallel positions of the integral supporting member 22.

Lifting lugs 2221 are arranged on the outer side edges of the upper parts of the side pressure plates 222, and the lifting lugs 2221 are of plate-shaped structures with downward openings; the outer side edge of the lower part of the side pressing plate 222 is further provided with a connecting slot 2212, and the connecting slot 2212 is connected with the matched through hole 21161 on the insulating positioning bracket 211 through the through connection of the pull rod 212, so that the integral installation of the battery module is realized.

The two ends of the bottom of the side pressure plate 222 in the length direction are also provided with a U-shaped groove 2223 with an outward opening, and the side edges are conveniently clamped and connected by connecting components such as bolts through the U-shaped groove 2223.

An insulating protection division bar 8 is further arranged, and the insulating protection division bar 8 is arranged at the top of the insulating positioning bracket 211; and is arranged between every two busbars of the battery module, the insulating protection division bar 8 is a strip-shaped division part 83, and two ends of the insulating protection division bar are provided with mounting parts 81; the mounting part 81 is provided with an assembling hole 82 matched with a top bus bar mounting hole of the insulating positioning bracket 211, and the insulating protection division bar is mounted on the top of the insulating positioning bracket 211 through a bolt; the insulation protection division bars 8 can realize the isolation between the composite rows 3 and the wiring rows 6, and simultaneously realize the isolation between every two composite rows 3, thereby effectively preventing the short circuit of the battery core; meanwhile, the positive electrode lug and the negative electrode lug are isolated through the wire clamp in the middle position, the electric wire is clamped in the middle wire clamp, the wiring is orderly, and later maintenance is facilitated.

The insulation cover 7 is arranged at the upper part of the bus bar and is connected with the side plate 221 through the concave part 71 at the side edge, so that the insulation cover 7 is covered at the top of the insulation positioning bracket 211, and meanwhile, the bus bar is isolated and protected; the epoxy plate 9 is arranged at the bottom of the battery module, and two ends of the epoxy plate are connected with the bottom of the side pressing plate 222, so that the bottom of the whole battery module is protected.

The single battery cell 11 is a soft package lithium ion battery.

The insulating positioning bracket 211 is made of 70% of ABS resin and 30% of polycarbonate through injection molding, the ABS resin has the characteristics of excellent impact resistance, heat resistance, low temperature resistance, chemical resistance and electrical performance, easiness in processing, stable product size, good surface gloss and the like, is easy to coat and color, can perform secondary processing such as surface spraying metal, electroplating, welding, hot pressing, bonding and the like, and is thermoplastic engineering plastic. Polycarbonate (also called PC for short) is a tough thermoplastic resin, and has the characteristics of weak acid resistance, weak base resistance, neutral oil resistance, high strength, fatigue resistance and the like. The support frame plate obtained by injection molding of 70% of ABS resin and 30% of polycarbonate has high support strength, stable support plasticity and good insulating property.

The invention is closely limited from two side surfaces of the battery module and assembled into an integral structure in an array way; the installation and maintenance are more convenient by the assembly mode of parts; by arranging the composite row, the wiring is more convenient and quicker, the working efficiency of operators is greatly improved, and the technical difficulty of operation is reduced; the installation assembly made of the insulating plastic material and the lightening holes or the hollow structures greatly reduce the weight of the whole battery module, and are convenient to radiate and transport and manage; the heat-conducting aluminum plate and the heat-conducting silica gel are arranged between the battery modules, so that the collision buffering function between the battery modules is realized, the battery modules are isolated and protected, the anti-collision effect is good, the heat dissipation effect is good, and the safety is higher; by arranging the insulating protection parting beads, the composite row is isolated and protected, the short circuit of the battery cell can be effectively prevented, and the safety and the reliability are higher; the battery module is vertically arranged in the spaced space in a clinging manner, so that the package deformation after the soft package is used for a long time can be effectively avoided, the structure is safe and reliable, the structure is simple and compact, the size is small, the investment of cost is reduced, the space utilization rate is high, the arrangement is reasonable, and the application range is wide.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.

Claims

1. The utility model provides a soft packet of lithium ion battery circuit isolation mounting structure which characterized in that: the battery module (1) comprises two single battery cores (11) which are arranged in parallel; the battery module (1) is respectively accommodated and positioned from the left side and the right side of the battery module (1) through an insulating positioning bracket (211); the top of the insulating positioning support (211) is also provided with a bus bar, and the bus bar comprises a composite bar (3) and wiring bars (6) arranged at two ends of the battery module in the length direction and fixedly connected to the top of an upper transverse rod (2111) of the insulating positioning support (211) of the battery module; the positive lug (111) and the negative lug (112) sequentially and respectively penetrate out of the groove hole (21111) on the upper cross bar (2111) and the connecting hole (40) of the composite row (3); bending the lug of the single battery cell (11) to the corresponding material on the contact busbar; the insulating positioning support is also provided with an insulating protection division bar (8), and the insulating protection division bar (8) is arranged at the top of the insulating positioning support (211); and is arranged between every two busbars of the battery module; a line card (2113) is arranged at the top end of the insulating positioning bracket (211), and the line card (2113) is arranged in the middle; a strip-shaped opening is formed in the line card (2113), the strip-shaped opening comprises a first straight line segment (21131), a second folded line segment (21132) and a third straight line segment (21133), and the first straight line segment (21131), the second folded line segment (21132) and the third straight line segment (21133) are connected in sequence;

the two single battery cells (11) are symmetrically arranged, the connection supporting parts (113) of the two symmetrically arranged single battery cells (11) are symmetrically arranged inwards, and the vertical surfaces of the battery cell parts between the two single battery cells (11) are bonded through an adhesive; the lugs of the two single battery cells (11) are oppositely attached, and the connection supporting parts (113) at the lower ends of the lugs are separately arranged; the connection supporting part (113) at the middle position of the width end part of the single battery cell (11) is obliquely arranged towards the inner side edge direction of the single battery cell (11); the positive tab (111) and the negative tab (112) are arranged at the top end of the connection supporting part (113), and the positive tab (111) and the negative tab (112) are arranged in parallel with the single battery cell (11);

the cell parts of the battery modules (1) are arranged in the inner cavities of the frame bodies of the two insulation positioning brackets (211);

the side edge of the upper cross bar (2111) of the insulating positioning bracket (211) is tightly matched with the obliquely arranged connecting support part (113) of the battery module (1);

the lower cross bar (2112) of the insulating positioning bracket (211) is also provided with a limiting step (21121), and the limiting step (21121) is matched with the outer contour size of the bottom of the battery core part of the battery module (1); the battery module (1) is placed through the accommodating cavities formed by the insulation positioning supports (211) which are respectively arranged on the left side and the right side of the battery module (1), and the insulation positioning supports (211) are used for clamping and positioning the battery module (1).

2. The soft-package lithium ion battery line isolation mounting structure of claim 1, wherein: the insulation protection division bar (8) is a long-strip-shaped division part (83), and mounting parts (81) are arranged at two ends of the insulation protection division bar; the mounting part (81) is provided with an assembly hole (82) matched with a top bus bar mounting hole of the insulating positioning support (211), and the insulating protection division bar is mounted at the top of the insulating positioning support (211) through a bolt.