CN204407416U - A button lithium ion battery - Google Patents
A button lithium ion battery Download PDFInfo
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- CN204407416U CN204407416U CN201520080508.7U CN201520080508U CN204407416U CN 204407416 U CN204407416 U CN 204407416U CN 201520080508 U CN201520080508 U CN 201520080508U CN 204407416 U CN204407416 U CN 204407416U
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- negative electrode
- pole piece
- folding unit
- electrode sheet
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- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 title claims abstract description 29
- 229910001416 lithium ion Inorganic materials 0.000 title claims abstract description 29
- 238000007789 sealing Methods 0.000 claims abstract description 10
- 239000003792 electrolyte Substances 0.000 claims abstract description 7
- 239000012528 membrane Substances 0.000 claims description 23
- 239000011149 active material Substances 0.000 claims description 5
- 230000004308 accommodation Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 10
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 239000007773 negative electrode material Substances 0.000 description 4
- 238000003860 storage Methods 0.000 description 4
- 238000004880 explosion Methods 0.000 description 3
- 238000004804 winding Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
Description
技术领域 technical field
本实用新型涉及电池领域，具体涉及一种纽扣锂离子电池。 The utility model relates to the field of batteries, in particular to a button lithium ion battery.
背景技术 Background technique
纽扣型锂离子电池是一种常见的电池，电池极芯由正极片、负极片和隔膜组成，按照极芯成型方法可分为扁平卷绕式、圆柱卷绕式和叠片式。在实际应用中，以上工艺各有优点，但均有不足。其中，扁平卷绕式极芯制程简单方便，但电池腔空间利用率低，体积容量比低；圆柱卷绕式极芯空间利用率高，但受制于高度设计，难以在纽扣型电池中使用；叠片式极芯空间利用率高，但正极片和负极片均由若干独立单体的金属基材焊接形成，工序复杂，不利于自动化生产的实现。 Button-type lithium-ion battery is a common battery. The battery pole core is composed of positive electrode sheet, negative electrode sheet and separator. According to the core forming method, it can be divided into flat winding type, cylindrical winding type and laminated type. In practical applications, the above processes have their own advantages, but all have disadvantages. Among them, the flat wound pole core has a simple and convenient manufacturing process, but the space utilization rate of the battery cavity is low, and the volume capacity ratio is low; the cylindrical wound pole core has a high space utilization rate, but is limited by the height design, and it is difficult to use it in a button battery; The space utilization rate of the laminated pole core is high, but the positive and negative plates are formed by welding several independent single metal substrates, and the process is complicated, which is not conducive to the realization of automatic production.
发明内容 Contents of the invention
为了克服现有技术的不足，本实用新型提供了一种纽扣锂离子电池，使得制造纽扣锂离子电池更加简单。 In order to overcome the deficiencies of the prior art, the utility model provides a button lithium ion battery, which makes it easier to manufacture the button lithium ion battery.
一种纽扣锂离子电池，包括正极壳、密封圈、负极盖、极芯和电解液，所述正极壳、密封圈和负极盖围成收容腔，所述极芯和电解液置于所述收容腔内，所述极芯包括正极片、负极片和隔膜，所述负极片包括第一负极片和第二负极片，所述隔膜包括第一隔膜和第二隔膜，所述正极片设置于所述第一负极片和第二负极片之间，所述第一隔膜设置在第一负极片与正极片之间，所述第二隔膜设置在第二负极片与正极片之间，所述极芯折叠形成多个折叠单元，所述折叠单元包括正极片折叠单元、第一负极片折叠单元、第二负极片折叠单元、第一隔膜折叠单元和第二隔膜折叠单元，对于设定的第一负极片折叠单元的任一表面，与所述任一表面接触的是相邻的第一负极片折叠单元的第二表面，其中，所述任一表面和第二表面位于所述第一负极片的同一表面。 A button lithium-ion battery, comprising a positive electrode case, a sealing ring, a negative electrode cover, a pole core and an electrolyte, the positive electrode case, the sealing ring and the negative electrode cover encircle a storage cavity, and the pole core and the electrolyte are placed in the storage chamber In the cavity, the pole core includes a positive electrode sheet, a negative electrode sheet and a diaphragm, the negative electrode sheet includes a first negative electrode sheet and a second negative electrode sheet, the diaphragm includes a first diaphragm and a second diaphragm, and the positive electrode sheet is arranged on the Between the first negative electrode sheet and the second negative electrode sheet, the first separator is arranged between the first negative electrode sheet and the positive electrode sheet, the second separator is arranged between the second negative electrode sheet and the positive electrode sheet, the electrode The core is folded to form a plurality of folding units, and the folding units include a positive electrode sheet folding unit, a first negative electrode sheet folding unit, a second negative electrode sheet folding unit, a first diaphragm folding unit and a second diaphragm folding unit, for the set first Any surface of the negative electrode sheet folding unit is in contact with the second surface of the adjacent first negative electrode sheet folding unit, wherein the any one surface and the second surface are located at the first negative electrode sheet of the same surface.
在一个实施例中，所述第二一极片仅在与第一极片相对的一面具有活性材料，所述第二二极片仅在与第一极片相对的一面具有活性材料。 In one embodiment, the second pole piece has active material only on the side opposite to the first pole piece, and the second dipole piece has active material only on the side opposite to the first pole piece.
在一个实施例中，所述第一负极片折叠单元与所述第二负极片折叠单元相连。 In one embodiment, the first negative electrode sheet folding unit is connected to the second negative electrode sheet folding unit.
在一个实施例中，所述第一负极片中相邻的第一负极片折叠单元之间具有折痕部位，所述折痕部位的宽度小于所述第一负极片折叠单元的宽度。 In one embodiment, there is a crease between adjacent first negative electrode folding units in the first negative electrode, and the width of the crease is smaller than the width of the first negative electrode folding unit.
在一个实施例中，所述第二负极片中相邻的第二负极片折叠单元之间具有折痕部位，所述折痕部位的宽度小于所述第二负极片折叠单元的宽度。 In one embodiment, there is a crease between adjacent second negative electrode folding units in the second negative electrode, and the width of the crease is smaller than the width of the second negative electrode folding unit.
在一个实施例中，所述正极片中相邻的正极片折叠单元之间具有折痕部位，所述折痕部位的宽度小于所述正极片折叠单元的宽度。 In one embodiment, there is a crease between adjacent positive electrode folding units in the positive electrode, and the width of the crease is smaller than the width of the positive electrode folding unit.
在一个实施例中，所述第一隔膜中相邻的第一隔膜折叠单元之间具有第一隔膜折痕部位，所述第一隔膜折痕部位的宽度小于所述第一隔膜折叠单元的宽度；所述第二隔膜中相邻的第二隔膜折叠单元之间具有第二隔膜折痕部位，所述第二隔膜折痕部位的宽度小于所述第二隔膜折叠单元的宽度，第一负极片和第二负极片的与正极连接部件对应的部分包裹了隔膜。 In one embodiment, there is a first membrane crease position between adjacent first membrane folding units in the first membrane, and the width of the first membrane crease position is smaller than the width of the first membrane folding unit There is a second diaphragm crease position between the adjacent second diaphragm folding units in the second diaphragm, the width of the second diaphragm crease position is smaller than the width of the second diaphragm folding unit, and the first negative plate The part of the second negative electrode sheet corresponding to the positive electrode connection part wraps the diaphragm.
在一个实施例中，所述正极片的第一端设有正极连接部件，所述第一负极片或第二负极片的远离第一端的一端设有负极连接部件，所述正极连接部件与所述正极壳电连接，所述负极连接部件与所述负极盖电连接。 In one embodiment, the first end of the positive electrode sheet is provided with a positive electrode connecting part, and the end of the first negative electrode sheet or the second negative electrode sheet far away from the first end is provided with a negative electrode connecting part, and the positive electrode connecting part is connected to The positive electrode casing is electrically connected, and the negative electrode connecting member is electrically connected to the negative electrode cover.
在一个实施例中，所述正极连接部件搭在所述密封圈上，所述正极壳压紧所述密封圈上的正极连接部件而形成电连接。将正电极和隔膜放置在第一负电极和第二负电极之间进行类型“Z”形折叠，从而形成极芯，制造过程更加简单。 In one embodiment, the positive electrode connecting part rides on the sealing ring, and the positive electrode casing presses the positive electrode connecting part on the sealing ring to form an electrical connection. The positive electrode and the separator are placed between the first negative electrode and the second negative electrode for type "Z" folding, thereby forming the pole core, and the manufacturing process is simpler.
附图说明 Description of drawings
图1是本实用新型一种实施例的纽扣锂离子电池(部分)的剖面结构示意图； Fig. 1 is the sectional structure schematic diagram of button lithium ion battery (part) of a kind of embodiment of the utility model;
图2是本实用新型一种实施例的纽扣锂离子电池的极芯的展开结构示意图； Fig. 2 is a schematic diagram of the unfolded structure of the pole core of a button lithium ion battery according to an embodiment of the present invention;
图3是本实用新型一种实施例的纽扣锂离子电池极芯折叠示意图； Fig. 3 is a schematic diagram of folding the pole core of the button lithium-ion battery according to an embodiment of the present invention;
图4是本实用新型一种实施例的纽扣锂离子电池的极芯示意图； Fig. 4 is a pole core schematic diagram of a button lithium ion battery of an embodiment of the present invention;
图5是本实用新型一种实施例的纽扣锂离子电池的极芯示意图； 5 is a schematic diagram of a pole core of a button lithium-ion battery according to an embodiment of the present invention;
图6是本实用新型另一种实施例的纽扣锂离子电池极芯、绝缘层示意图； Fig. 6 is a schematic diagram of a pole core and an insulating layer of a button lithium-ion battery according to another embodiment of the present invention;
图7是本实用新型另一种实施例的纽扣锂离子电池极芯的爆炸示意图； Fig. 7 is a schematic diagram of explosion of a button lithium-ion battery pole core according to another embodiment of the present invention;
图8是本实用新型另一种实施例的纽扣锂离子电池极芯的爆炸示意图； Fig. 8 is a schematic diagram of explosion of a button lithium-ion battery pole core according to another embodiment of the present invention;
图9是本实用新型另一种实施例的纽扣锂离子电池极芯的爆炸示意图； Fig. 9 is a schematic diagram of explosion of a button lithium-ion battery pole core according to another embodiment of the present invention;
图10是图9的纽扣锂离子电池极芯展开的示意图。 FIG. 10 is a schematic view of the pole core of the button lithium-ion battery in FIG. 9 being expanded.
具体实施方式 Detailed ways
以下对实用新型的较佳实施例作进一步详细说明。 The preferred embodiments of the utility model are further described in detail below.
如图1至6所示，一种实施例的纽扣锂离子电池，包括正极壳1、密封圈4、负极盖2、极芯5和电解液，所述正极壳1、密封圈4和负极盖2围成收容腔3，所述极芯5和电解液置于所述收容腔3内，所述极芯5包括正极片8、负极片和隔膜，所述负极片包括第一负极片6和第二负极片7，所述隔膜包括第一隔膜9和第二隔膜(未示出)，所述正极片8设置于所述第一负极片6和第二负极片7之间，所述第一隔膜9设置在 第一负极片6与正极片8之间，所述第二隔膜设置在第二负极片7与正极片8之间，所述极芯5折叠形成多个折叠单元，每个折叠单元包括相互对应的正极片折叠单元81、第一负极片折叠单元61、第二负极片折叠单元71、第一隔膜折叠单元91和第二隔膜折叠单元(未示出)，对于设定的第一负极片折叠单元61的任一表面，与所述任一表面接触的是相邻的第一负极片折叠单元62的第二表面，其中，所述任一表面和第二表面位于所述第一负极片6的同一表面，也即，极芯5以类似“Z”型的方式进行折叠，制作起来更加简单方便。 As shown in Figures 1 to 6, a button lithium-ion battery of an embodiment includes a positive electrode case 1, a sealing ring 4, a negative electrode cover 2, a pole core 5 and an electrolyte, and the positive electrode case 1, the sealing ring 4 and the negative electrode cover 2 to form a storage cavity 3, the pole core 5 and the electrolyte are placed in the storage cavity 3, the pole core 5 includes a positive electrode sheet 8, a negative electrode sheet and a diaphragm, and the negative electrode sheet includes a first negative electrode sheet 6 and a The second negative electrode sheet 7, the diaphragm includes a first diaphragm 9 and a second diaphragm (not shown), the positive electrode sheet 8 is arranged between the first negative electrode sheet 6 and the second negative electrode sheet 7, the first negative electrode sheet 7 A diaphragm 9 is arranged between the first negative electrode sheet 6 and the positive electrode sheet 8, the second diaphragm is arranged between the second negative electrode sheet 7 and the positive electrode sheet 8, and the pole core 5 is folded to form a plurality of folding units, each The folding unit includes a positive electrode sheet folding unit 81 corresponding to each other, a first negative electrode sheet folding unit 61, a second negative electrode sheet folding unit 71, a first diaphragm folding unit 91 and a second diaphragm folding unit (not shown), for the set Any surface of the first negative electrode sheet folding unit 61 is in contact with the second surface of the adjacent first negative electrode sheet folding unit 62, wherein the any one surface and the second surface are located at the The same surface of the first negative electrode sheet 6 , that is, the pole core 5 is folded in a "Z"-like manner, which is simpler and more convenient to manufacture.
在一个实施例中，所述第一负极片6和第二负极片7是一个整体，这样，第一负极片6和第二负极片7之间更不容易错位，形成的折叠单元也更加整齐，制作的极芯5的质量更好。 In one embodiment, the first negative electrode sheet 6 and the second negative electrode sheet 7 are integrated, so that the misalignment between the first negative electrode sheet 6 and the second negative electrode sheet 7 is less likely, and the folded unit formed is also more neat , the quality of the pole core 5 produced is better.
所述第一负极片折叠单元61可以与所述第二负极片折叠单元71相连，以达到第一负极片6和第二负极片7形成一个整体的目的。这样可以进一步确保形成的折叠单元也更加整齐。 The first negative electrode sheet folding unit 61 can be connected with the second negative electrode sheet folding unit 71 to achieve the purpose of forming the first negative electrode sheet 6 and the second negative electrode sheet 7 as a whole. This can further ensure that the formed folded unit is also more neat.
可以在所述第一负极片6中相邻的第一负极片折叠单元61与第一负极片折叠单元62之间设置折痕部位64，所述折痕部位64的宽度小于所述第一负极片折叠单元62的宽度。这样，折叠第一负极片6时，更加容易形成第一负极片折叠单元61和第一负极片折叠单元62。同样，也可以在所述第二负极片7中相邻的第二负极片折叠单元71与第二负极片折叠单元72之间设置折痕部位，所述折痕部位的宽度小于所述第二负极片折叠单元71、72的宽度。同样，也可以在所述正极片8中相邻的正极片折叠单元81与正极片折叠单元82之间具有折痕部位，所述折痕部位的宽度小于所述正极片折叠单元82、81的宽度。同样，也可以在所述第一隔膜9中相邻的第一隔膜折叠单元92与第一隔膜折叠单元91之间具有第一隔膜折痕部位，所述第一隔膜折痕部位的宽度小于所述第一隔膜折叠单元92、91的宽度；所述第二隔膜中相邻的第二隔膜折叠单元之间具有第二隔膜折痕部位，所述第二隔膜折痕部位的宽度小于所述第二隔膜折叠单元的宽度。 A crease portion 64 may be provided between the adjacent first negative electrode sheet folding unit 61 and the first negative electrode sheet folding unit 62 in the first negative electrode sheet 6, and the width of the crease portion 64 is smaller than that of the first negative electrode sheet. The width of the sheet folding unit 62. In this way, when folding the first negative electrode sheet 6 , it is easier to form the first negative electrode sheet folding unit 61 and the first negative electrode sheet folding unit 62 . Similarly, a crease can also be provided between the adjacent second negative electrode folding unit 71 and the second negative electrode folding unit 72 in the second negative electrode sheet 7, and the width of the crease is smaller than that of the second negative electrode sheet. The width of the negative electrode sheet folding units 71 and 72 . Similarly, there may also be a crease position between the adjacent positive electrode sheet folding unit 81 and the positive electrode sheet folding unit 82 in the positive electrode sheet 8, and the width of the crease position is smaller than that of the positive electrode sheet folding units 82, 81. width. Similarly, there may also be a first membrane crease position between the adjacent first membrane folding unit 92 and the first membrane folding unit 91 in the first membrane 9, and the width of the first membrane crease position is smaller than the width of the first membrane folding unit. The width of the first membrane folding unit 92, 91; there is a second membrane crease position between adjacent second membrane folding units in the second membrane, and the width of the second membrane crease position is smaller than that of the first membrane folding unit. The width of the two-diaphragm folded unit.
所述正极片8的第一端设有正极连接部件83，所述第一负极片6或第二负极片7的远离第一端的一端设有负极连接部件63，在本实施例中，负极连接部件63设置在第一负极片6上，所述正极连接部件83与所述正极壳1电连接，所述负极连接部件63与所述负极盖2电连接。正极连接部件83可以搭在密封圈上，正极壳1盖在负极盖2上时可以压紧正极连接部件83，从而形成电连接。如图6所示，折叠后的极芯5的结构示意图。 The first end of the positive electrode sheet 8 is provided with a positive electrode connection part 83, and the end of the first negative electrode sheet 6 or the second negative electrode sheet 7 is provided with a negative electrode connection part 63. In this embodiment, the negative electrode The connection part 63 is disposed on the first negative electrode sheet 6 , the positive connection part 83 is electrically connected to the positive case 1 , and the negative connection part 63 is electrically connected to the negative cover 2 . The positive connection part 83 can be placed on the sealing ring, and the positive connection part 83 can be pressed when the positive case 1 is covered on the negative cover 2, thereby forming an electrical connection. As shown in FIG. 6 , a schematic structural diagram of the folded pole core 5 .
可以仅仅在所述第一负极片的与正极片相对的一面设置负极活性材料，在所述第二负极片的与正极片相对的一面设置负极活性材料，而不需要在另外一面设置负极活性材料，这样既可以有效保证电池反应，也可以节省负极活性材料。 Negative active material can only be arranged on the side opposite to the positive electrode sheet of the first negative electrode sheet, and the negative electrode active material can be arranged on the opposite side of the second negative electrode sheet to the positive electrode sheet, without the need to arrange the negative electrode active material on the other side , which can not only effectively ensure the battery reaction, but also save the negative electrode active material.
在一个实施例中，纽扣锂离子电池还可以包括绝缘层10，所述绝缘层10设置在所述正极壳1与所述极芯5的一端之间，在负极盖2与极芯5的另一端之间也可以设置一绝缘层10。 In one embodiment, the button lithium ion battery can also include an insulating layer 10, the insulating layer 10 is arranged between the positive electrode casing 1 and one end of the pole core 5, and the other end of the negative electrode cover 2 and the pole core 5 An insulating layer 10 may also be provided between one end.
在一个实施例中，正极片与负极片的位置可以调换，例如图7所示，极片6和极片7可以是正极片，而极片8可以是负极片，这样，将极片8放在极片7和极片6之间，按照前述实施例，制作极芯。 In one embodiment, the positions of the positive pole piece and the negative pole piece can be exchanged. For example, as shown in FIG. Between the pole piece 7 and the pole piece 6, according to the previous embodiment, a pole core is made.
在图6中，第一负极片6和第二负极片7是独立的两个极片，且都具有负极连接部件63，当制作成极芯后可以再将第一负极片6和第二负极片7焊接。 In Fig. 6, the first negative electrode piece 6 and the second negative electrode piece 7 are two independent pole pieces, and all have negative electrode connection part 63, can connect the first negative electrode piece 6 and the second negative electrode piece after making pole core Sheet 7 is welded.
如图8所示，在另一实施例中，第一负极片6和第二负极片7是一个整体，但是两者均有负极连接部件63，且两个负极连接部件63是相连的。 As shown in FIG. 8, in another embodiment, the first negative electrode sheet 6 and the second negative electrode sheet 7 are integrated, but both have a negative electrode connection part 63, and the two negative electrode connection parts 63 are connected. the
如图9所示，第一负极片6和第二负极片7是一个整体，但是仅仅具有一个负极连接部件63，但是该负极连接部件63与第一负极片6的长度方向垂直，同样，正极片8的正极连接部件83也与正极片8的长度方向垂直。 As shown in Figure 9, the first negative electrode sheet 6 and the second negative electrode sheet 7 are an integral body, but only have a negative electrode connection part 63, but this negative electrode connection part 63 is perpendicular to the length direction of the first negative electrode sheet 6, likewise, the positive electrode The positive electrode connection part 83 of the sheet 8 is also perpendicular to the longitudinal direction of the positive electrode sheet 8 .
在一个实施例中，如图9所示，第一负极片6和第二负极片7可以沿两个负极片的长度方向分布排列，然后再进行折叠制作极芯，在这种情况下，图9的负极连接部件63和正极连接部件83更加方便引出连接部件。 In one embodiment, as shown in Figure 9, the first negative electrode sheet 6 and the second negative electrode sheet 7 can be distributed and arranged along the length direction of the two negative electrode sheets, and then folded to make pole cores. 9, the negative connection part 63 and the positive connection part 83 are more convenient to lead out the connection parts.
在一个实施例中，第一负极片6和第二负极片7的与正极连接部件83对应的部分进一步包裹了隔膜11，也即是说，隔膜11包裹了该部分的正面部分以及边沿部分，以达到更加的防止微短路的效果。 In one embodiment, the part of the first negative electrode sheet 6 and the second negative electrode sheet 7 corresponding to the positive connection part 83 further wraps the diaphragm 11, that is to say, the diaphragm 11 wraps the front part and the edge part of the part, In order to achieve a better effect of preventing micro-short circuit.
以上内容是结合具体的优选实施方式对本实用新型所作的进一步详细说明，不能认定本实用新型的具体实施只局限于这些说明。对于本实用新型所属技术领域的普通技术人员来说，在不脱离本实用新型构思的前提下，还可以做出若干简单推演或替换，都应当视为属于本实用新型由所提交的权利要求书确定的专利保护范围。 The above content is a further detailed description of the utility model in combination with specific preferred embodiments, and it cannot be assumed that the specific implementation of the utility model is only limited to these descriptions. For those of ordinary skill in the technical field to which the utility model belongs, without departing from the concept of the utility model, some simple deduction or replacement can also be made, which should be regarded as belonging to the utility model by the submitted claims. Determine the scope of patent protection.
Claims (10)
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| CN107342395A (en) * | 2017-08-06 | 2017-11-10 | 朱程显 | Lithium coin cells with multilayer steel loop or steel mesh |
| CN107492678A (en) * | 2016-06-13 | 2017-12-19 | 兴能高科技股份有限公司 | Similar stack winding type structure of lithium ion battery |
| CN108682755A (en) * | 2018-05-09 | 2018-10-19 | 广东弘捷新能源有限公司 | Button cell and its manufacturing method |
| CN111900489A (en) * | 2020-09-08 | 2020-11-06 | 湖北允升科技工业园有限公司 | Z-shaped laminated button type lithium ion battery |
| CN115275307A (en) * | 2022-08-04 | 2022-11-01 | 源拓微电科技(宁波)有限公司 | Button-type lithium battery cell, method for making button-type lithium battery cell, and button-type lithium battery cell |
| JP7539100B2 (en) | 2021-03-24 | 2024-08-23 | パナソニックＩｐマネジメント株式会社 | Coin Cell Batteries |
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- 2015-02-04 CN CN201520080508.7U patent/CN204407416U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107492678A (en) * | 2016-06-13 | 2017-12-19 | 兴能高科技股份有限公司 | Similar stack winding type structure of lithium ion battery |
| CN107342395A (en) * | 2017-08-06 | 2017-11-10 | 朱程显 | Lithium coin cells with multilayer steel loop or steel mesh |
| CN108682755A (en) * | 2018-05-09 | 2018-10-19 | 广东弘捷新能源有限公司 | Button cell and its manufacturing method |
| CN111900489A (en) * | 2020-09-08 | 2020-11-06 | 湖北允升科技工业园有限公司 | Z-shaped laminated button type lithium ion battery |
| JP7539100B2 (en) | 2021-03-24 | 2024-08-23 | パナソニックＩｐマネジメント株式会社 | Coin Cell Batteries |
| CN115275307A (en) * | 2022-08-04 | 2022-11-01 | 源拓微电科技(宁波)有限公司 | Button-type lithium battery cell, method for making button-type lithium battery cell, and button-type lithium battery cell |
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Effective date of registration: 20210308 Address after: 516000 1st floor, Yifu company workshop, Weisheng Industrial Zone, Qingchun village, Chenjiang, Zhongkai high tech Zone, Huizhou City, Guangdong Province Patentee after: Huizhou lishengda New Energy Technology Co.,Ltd. Address before: No.3, Huafeng Road, Si Village, Tangxia Town, Dongguan City, Guangdong Province, 523716 Patentee before: Yang Ming |
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