CN112510295A - Battery with polymer shell - Google Patents
Battery with polymer shell Download PDFInfo
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- CN112510295A CN112510295A CN202011372643.0A CN202011372643A CN112510295A CN 112510295 A CN112510295 A CN 112510295A CN 202011372643 A CN202011372643 A CN 202011372643A CN 112510295 A CN112510295 A CN 112510295A
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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
The invention relates to a battery with a polymer shell, which comprises a lithium manganese battery cell and a shell (100) coated on the outer layer of the lithium manganese battery cell, wherein the shell (100) comprises a nylon layer (101), an aluminum layer (102) and a polymer layer (103) which are sequentially connected from outside to inside. The polymer layer has good heat resistance, flexibility and extensibility, can effectively avoid deformation and damage caused by extrusion, avoids explosion of internal expansion caused by high temperature of the battery, has good sealing property, can effectively prevent internal electrolyte from leaking, and improves the safety of the battery.
Description
Technical Field
The invention relates to the technical field of lithium batteries, in particular to a battery with a polymer shell.
Background
Lithium batteries (Lithium cells) use a nonaqueous electrolyte solution and a Lithium metal or a Lithium alloy as a negative electrode material. Lithium metal batteries were first proposed and studied by Gilbert n.lewis in 1912. Because the chemical characteristics of lithium metal are very active, the lithium metal has very high requirements on the environment in processing, storage and use, so the lithium battery is not applied for a long time, and the lithium battery becomes the mainstream along with the development of scientific technology.
The lithium manganese steel shell cylindrical battery produced at present has the advantages of high capacity and long storage time, but the safety performance of the battery is not well solved, and because the shell material is steel, the battery can explode under the conditions of high temperature, extrusion, over-discharge and forced charging.
For example, patent application 200520062526.9 discloses a lithium-manganese dioxide cylindrical battery with good safety performance, which comprises a positive electrode cap and a negative electrode cap at the upper and lower ends of a housing and a lithium-manganese dioxide battery core therein; a diode is connected between the positive electrode cap and the negative electrode cap inside the shell through a lead, the diode is connected with the positive electrode cap and the negative electrode cap in a reverse direction, the shell is made of a plastic material, the safety problem can be well solved, however, for the lithium manganese primary battery, if the plastic shell is adopted, the sealing performance of the battery is inevitably greatly influenced, moisture and air easily permeate into the battery through the plastic shell, and therefore the storage life of the battery is influenced.
Disclosure of Invention
In order to overcome the technical defects in the prior art, the invention provides a battery with a polymer shell, which can effectively prevent the battery from being exploded due to thermal expansion and extrusion, improve the safety of the battery, and effectively solve the problems in the background art.
In order to solve the above technical problems, the technical solution of the battery with a polymer case provided by the present invention is specifically as follows:
the embodiment of the invention discloses a battery with a polymer shell, which comprises a lithium manganese battery cell and a shell coated on the outer layer of the lithium manganese battery cell, wherein the shell comprises a nylon layer, an aluminum layer and a polymer layer which are sequentially connected from outside to inside.
In any of the above embodiments, preferably, the polymer comprises the following components in parts by mass: 0.2 to 1.2 portions of polyethylene, 0.3 to 1.5 portions of polypropylene, 1.2 to 2.4 portions of polyvinyl chloride, 1.2 to 1.8 portions of styrene resin, 0.6 to 1.0 portion of phenolic resin, 0.4 to 1.8 portions of amino resin, 0.1 to 0.3 portion of epoxy resin and 0.1 to 1.0 portion of polyurethane.
In any of the above embodiments, it is preferred that the nylon layer has a thickness in the range of 0.05 to 0.4 mm.
In any of the above aspects, it is preferred that the aluminum layer has a thickness in the range of 0.1 to 0.25 mm.
In any of the above embodiments, it is preferred that the polymer has a thickness in the range of 0.05 to 0.4 mm.
In any of the above schemes, preferably, the battery further includes a cover plate disposed at one end of the housing, the cover plate has a mounting hole, the mounting hole penetrates through a rivet for guiding out the battery electrode, and a first sealing ring and a second sealing ring are disposed on abutting surfaces of the rivet and the mounting hole, respectively.
In any one of the above aspects, preferably, the first seal ring and the second seal ring are integrally formed.
In any of the above schemes, preferably, an elastic gasket is arranged inside the cover plate, and the elastic gasket is connected with the inner wall of the housing in a sealing manner.
In any of the above aspects, preferably, the cover plate is provided with a liquid injection hole, and the liquid injection hole is in threaded connection with the plug.
In any of the above aspects, it is preferable that the bottom is provided with a groove, and the groove is in a cross shape.
The invention has the beneficial effects that: the polymer layer has good heat resistance, flexibility and extensibility, can effectively avoid deformation and damage caused by extrusion, avoids explosion of internal expansion caused by high temperature of the battery, has good sealing performance, can effectively prevent leakage of internal electrolyte, and improves the safety of the battery.
Drawings
The drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification.
Fig. 1 is a schematic structural view of a flexibly packaged cylindrical battery according to an embodiment of the present invention;
FIG. 2 is a schematic view of a directional structure of a flexibly packaged cylindrical battery according to an embodiment of the present invention;
fig. 3 is a schematic structural view of a case of a flexibly-packaged cylindrical battery according to an embodiment of the present invention;
the reference numbers in the figures illustrate:
100. a housing; 101. a nylon layer; 102. an aluminum layer; 103. a polymer; 110. a cover plate; 121. a first seal ring; 122. a second seal ring; 130. riveting; 140. a plug; 150. an elastic washer; 160. a bottom; 161. and (4) a groove.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
As shown in fig. 1 and 3, the present invention provides a battery having a polymer case, including a lithium manganese cell and a case 100 covering an outer layer of the lithium manganese cell; the lithium manganese battery cell is of a winding type cylinder structure;
the shell 100 is a multilayer structure and is formed by compounding an outer nylon layer 101, a middle aluminum layer 102 and an inner polymer layer 103, wherein the thickness of the nylon layer 101 ranges from 0.05 mm to 0.4mm, the thickness of the aluminum layer 102 ranges from 0.1mm to 0.25mm, and the thickness of the polymer layer 103 ranges from 0.05 mm to 0.4 mm.
For better understanding of the above technical solutions, the technical solutions of the present invention will be described in detail below with reference to the drawings and the detailed description of the present invention.
Example 1:
the invention provides a battery with a polymer shell, which comprises a lithium-manganese battery cell and a shell 100 coated on the outer layer of the lithium-manganese battery cell; the lithium manganese battery cell is of a winding type cylinder structure;
the shell 100 is a multilayer structure and is formed by compounding an outer nylon layer 101, a middle aluminum layer 102 and an inner polymer layer 103, wherein the thickness of the nylon layer 101 is 0.25mm, the thickness of the aluminum layer 102 is 0.2mm, and the thickness of the polymer layer 103 is 0.2 mm.
Example 2:
the invention provides a battery with a polymer shell, which comprises a lithium-manganese battery cell and a shell 100 coated on the outer layer of the lithium-manganese battery cell; the lithium manganese battery cell is of a winding type cylinder structure;
the shell 100 is a multilayer structure and is formed by compounding an outer nylon layer 101, a middle aluminum layer 102 and an inner polymer layer 103, wherein the thickness of the nylon layer 101 is 0.24mm, the thickness of the aluminum layer 102 is 0.1mm, and the thickness of the polymer layer 103 is 0.4 mm.
Example 3:
the invention provides a battery with a polymer shell, which comprises a lithium-manganese battery cell and a shell 100 coated on the outer layer of the lithium-manganese battery cell; the lithium manganese battery cell is of a winding type cylinder structure;
the shell 100 is a multilayer structure and is formed by compounding an outer nylon layer 101, a middle aluminum layer 102 and an inner polymer layer 103, wherein the thickness of the nylon layer 101 is 0.2mm, the thickness of the aluminum layer 102 is 0.2mm, and the thickness of the polymer layer 103 is 0.25 mm.
Example 4:
the invention provides a battery with a polymer shell, which comprises a lithium-manganese battery cell and a shell 100 coated on the outer layer of the lithium-manganese battery cell; the lithium manganese battery cell is of a winding type cylinder structure;
the shell 100 is a multilayer structure and is formed by compounding an outer nylon layer 101, a middle aluminum layer 102 and an inner polymer layer 103, wherein the thickness of the nylon layer 101 is 0.3mm, the thickness of the aluminum layer 102 is 0.2mm, and the thickness of the polymer layer 103 is 0.3 mm.
In summary, in the above embodiments 1 to 4, through comprehensive analysis, embodiment 3 is preferably selected, the case 100 compounded according to embodiment 3 is soft, and has good barrier property, so that the safety performance of the battery can be ensured, the sealing performance of the case 100 is very good, air is not easy to permeate into the battery through the plastic casing, and the battery core is not affected by the external environment, so that the battery core has good performance and long service life.
Wherein the polymer layer 103 comprises the following components: 0.2 to 1.2 portions of polyethylene, 0.3 to 1.5 portions of polypropylene, 1.2 to 2.4 portions of polyvinyl chloride, 1.2 to 1.8 portions of styrene resin, 0.6 to 1.0 portion of phenolic resin, 0.4 to 1.8 portions of amino resin, 0.1 to 0.3 portion of epoxy resin and 0.1 to 1.0 portion of polyurethane.
Example 5:
the invention provides a battery with a polymer shell, which comprises a lithium-manganese battery cell and a shell 100 coated on the outer layer of the lithium-manganese battery cell; the lithium manganese battery cell is of a winding type cylinder structure;
the shell 100 is a multilayer structure and is formed by compounding an outer nylon layer 101, a middle aluminum layer 102 and an inner polymer layer 103, wherein the thickness of the nylon layer 101 is 0.2mm, the thickness of the aluminum layer 102 is 0.2mm, and the thickness of the polymer layer 103 is 0.25 mm.
Wherein the polymer layer 103 comprises the following components in parts by mass: 0.2 part of polyethylene, 0.3 part of polypropylene, 1.2 parts of polyvinyl chloride, 1.2 parts of styrene resin, 01.0 parts of phenolic resin, 0.6 part of amino resin, 0.3 part of epoxy resin and 0.3 part of polyurethane.
Example 6:
the invention provides a battery with a polymer shell, which comprises a lithium-manganese battery cell and a shell 100 coated on the outer layer of the lithium-manganese battery cell; the lithium manganese battery cell is of a winding type cylinder structure;
the shell 100 is a multilayer structure and is formed by compounding an outer nylon layer 101, a middle aluminum layer 102 and an inner polymer layer 103, wherein the thickness of the nylon layer 101 is 0.2mm, the thickness of the aluminum layer 102 is 0.2mm, and the thickness of the polymer layer 103 is 0.25 mm.
Wherein the polymer layer 103 comprises the following components in parts by mass: 0.3 part of polyethylene, 0.4 part of polypropylene, 1.4 parts of polyvinyl chloride, 1.3 parts of styrene resin, 0.7 part of phenolic resin, 0.5 part of amino resin, 0.2 part of epoxy resin and 0.2 part of polyurethane.
Example 7:
the invention provides a battery with a polymer shell, which comprises a lithium-manganese battery cell and a shell 100 coated on the outer layer of the lithium-manganese battery cell; the lithium manganese battery cell is of a winding type cylinder structure;
the shell 100 is a multilayer structure and is formed by compounding an outer nylon layer 101, a middle aluminum layer 102 and an inner polymer layer 103, wherein the thickness of the nylon layer 101 is 0.2mm, the thickness of the aluminum layer 102 is 0.2mm, and the thickness of the polymer layer 103 is 0.25 mm.
Wherein the polymer layer 103 comprises the following components in parts by mass: 0.6 part of polyethylene, 0.5 part of polypropylene, 2.0 parts of polyvinyl chloride, 1.3 parts of styrene resin, 0.9 part of phenolic resin, 0.6 part of amino resin, 0.15 part of epoxy resin and 0.5 part of polyurethane.
Example 8:
the invention provides a battery with a polymer shell, which comprises a lithium-manganese battery cell and a shell 100 coated on the outer layer of the lithium-manganese battery cell; the lithium manganese battery cell is of a winding type cylinder structure;
the shell 100 is a multilayer structure and is formed by compounding an outer nylon layer 101, a middle aluminum layer 102 and an inner polymer layer 103, wherein the thickness of the nylon layer 101 is 0.2mm, the thickness of the aluminum layer 102 is 0.2mm, and the thickness of the polymer layer 103 is 0.25 mm.
Wherein the polymer layer 103 comprises the following components in parts by mass: 0.7 part of polyethylene, 0.6 part of polypropylene, 1.9 parts of polyvinyl chloride, 1.4 parts of styrene resin, 0.9 part of phenolic resin, 0.6 part of amino resin, 0.2 part of epoxy resin and 0.6 part of polyurethane.
Example 9:
the invention provides a battery with a polymer shell, which comprises a lithium-manganese battery cell and a shell 100 coated on the outer layer of the lithium-manganese battery cell; the lithium manganese battery cell is of a winding type cylinder structure;
the shell 100 is a multilayer structure and is formed by compounding an outer nylon layer 101, a middle aluminum layer 102 and an inner polymer layer 103, wherein the thickness of the nylon layer 101 is 0.2mm, the thickness of the aluminum layer 102 is 0.2mm, and the thickness of the polymer layer 103 is 0.25 mm.
Wherein the polymer layer 103 comprises the following components in parts by mass: 0.8 part of polyethylene, 0.9 part of polypropylene, 1.9 parts of polyvinyl chloride, 1.7 parts of styrene resin, 0.8 part of phenolic resin, 1.3 parts of amino resin, 0.3 part of epoxy resin and 0.9 part of polyurethane.
Example 10:
the invention provides a battery with a polymer shell, which comprises a lithium-manganese battery cell and a shell 100 coated on the outer layer of the lithium-manganese battery cell; the lithium manganese battery cell is of a winding type cylinder structure;
the shell 100 is a multilayer structure and is formed by compounding an outer nylon layer 101, a middle aluminum layer 102 and an inner polymer layer 103, wherein the thickness of the nylon layer 101 is 0.2mm, the thickness of the aluminum layer 102 is 0.2mm, and the thickness of the polymer layer 103 is 0.25 mm.
Wherein the polymer layer 103 comprises the following components in parts by mass: 1.2 parts of polyethylene, 1.5 parts of polypropylene, 2.4 parts of polyvinyl chloride, 1.8 parts of styrene resin, 1.0 part of phenolic resin, 1.8 parts of amino resin, 0.3 part of epoxy resin and 1.0 part of polyurethane.
In summary, in the above examples 5-10, through comprehensive analysis, the polymer layer 103 obtained by polymerizing the components according to example 7, which is preferred in example 7, has good heat resistance, flexibility and extensibility, can effectively prevent deformation and damage caused by extrusion, and can prevent internal expansion explosion caused by high temperature of the battery, and has good sealing property.
In order to improve the sealing performance of a battery having a polymer case, in any of the above embodiments, the battery further includes a cover plate 110 disposed at one end of the case 100, the cover plate 110 has a mounting hole, a rivet 130 for leading out a battery electrode is inserted into the mounting hole, a first sealing ring 121 and a second sealing ring 122 are respectively disposed on the abutting surfaces of the rivet 130 and the mounting hole, and the rivet 130 and the cover plate 110 are connected more tightly by the first sealing ring 121 and the second sealing ring 122, so that leakage of an electrolyte is avoided, and the battery has good sealing performance.
In order to further enhance the sealing performance of the cover plate 110 and reduce the assembly cost, it is preferable that the first sealing ring 121 and the second sealing ring 122 are integrally formed, and the integrated sealing ring can reduce the assembly process, and at the same time, can prevent the dependence on precise assembly requirements, reduce labor, reduce the assembly labor, and have a better sealing effect.
In order to prevent the rivet 130 from being pressed into the cover plate 110 to deform the cover plate 110, it is preferable that an elastic gasket 150 is disposed inside the cover plate 110, the elastic gasket 150 is connected to the inner wall of the housing 100 in a sealing manner, the elastic gasket 150 has at least one through hole, the elastic gasket 150 can provide a buffering and supporting force for the cover plate 110 to prevent the cover plate 110 from being pressed to deform, and the through hole of the elastic gasket 150 can facilitate the electrolyte injection.
In order to improve the sealing performance, it is preferable that the cover plate 110 is provided with a liquid injection hole, the liquid injection hole is sealed and filled by a plug 140, and the plug 140 can be fully abutted against the inner wall of the liquid injection hole, so that the liquid injection hole is completely sealed after liquid injection, and the leakage of the electrolyte is avoided.
In order to further improve the sealing performance between the liquid injection hole and the plug 140, it is preferable that the liquid injection hole and the plug 140 are screwed to reinforce the connection between the liquid injection hole and the plug 140, and the plug 140 can withstand a large pressure without being pushed open when the battery is expanded by pressure, thereby improving the sealing performance between the liquid injection hole and the plug 140.
In order to further improve the sealing ability of the plug 140, it is preferable that the plug 140 is shaped like a "T", and the contact area between the T-shaped plug 140 and the cover plate 110 is increased on one side of the plug, so that the outside of the pour hole is completely shielded, and the sealing ability between the pour hole and the plug 140 is effectively improved.
As shown in fig. 2, the battery with the polymer case further includes a bottom 160, the bottom 160 has a groove 161, the groove 161 can achieve the drainage effect during bursting while not obstructing the electrical connection, so as to prevent the explosion problem, in order to further improve the drainage effect, the groove 161 is in a cross shape, and the middle of the cross shape of the groove 161 has good toughness, so as to achieve the improved drainage effect.
Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that various changes, modifications and substitutions can be made without departing from the spirit and scope of the invention as defined by the appended claims. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A battery having a polymer housing, characterized by: the lithium manganese battery cell comprises a lithium manganese battery cell and a shell (100) coated on the outer layer of the lithium manganese battery cell, wherein the shell (100) comprises a nylon layer (101), an aluminum layer (102) and a polymer layer (103) which are sequentially connected from outside to inside.
2. The battery having a polymer housing of claim 1, wherein: the polymer layer (103) comprises the following components in parts by mass: 0.2 to 1.2 portions of polyethylene, 0.3 to 1.5 portions of polypropylene, 1.2 to 2.4 portions of polyvinyl chloride, 1.2 to 1.8 portions of styrene resin, 0.6 to 1.0 portion of phenolic resin, 0.4 to 1.8 portions of amino resin, 0.1 to 0.3 portion of epoxy resin and 0.1 to 1.0 portion of polyurethane.
3. The battery having a polymer housing of claim 2, wherein: the thickness range of the nylon layer (101) is 0.05-0.4 mm.
4. The battery having a polymer housing of claim 3, wherein: the thickness of the aluminum layer (102) ranges from 0.1mm to 0.25 mm.
5. The battery having a polymer housing of claim 4, wherein: the thickness of the polymer (103) ranges from 0.05 to 0.4 mm.
6. The battery having a polymer housing of claim 5, wherein: still including set up in apron (110) of casing one end, apron (110) have the mounting hole, rivet (130) of deriving the battery electrode are worn to establish by the mounting hole, rivet (130) with be provided with first sealing washer (121) and second sealing washer (122) on the mounting hole butt face respectively.
7. The battery having a polymer housing of claim 6, wherein: the first seal ring (121) and the second seal ring (122) are integrally formed.
8. The battery having a polymer housing of claim 7, wherein: an elastic gasket (150) is arranged on the inner side of the cover plate (110), and the elastic gasket (150) is connected with the inner wall of the shell (100) in a sealing mode.
9. The battery having a polymer housing of claim 8, wherein: the cover plate (110) is provided with a liquid injection hole, and the liquid injection hole is in threaded connection with the plug (140).
10. The battery having a polymer housing of claim 9, wherein: also comprises a bottom part (160), wherein the bottom part (160) is provided with a groove (161), and the groove (161) is in a cross shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011372643.0A CN112510295A (en) | 2020-11-30 | 2020-11-30 | Battery with polymer shell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011372643.0A CN112510295A (en) | 2020-11-30 | 2020-11-30 | Battery with polymer shell |
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| Publication Number | Publication Date |
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| CN112510295A true CN112510295A (en) | 2021-03-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011372643.0A Withdrawn CN112510295A (en) | 2020-11-30 | 2020-11-30 | Battery with polymer shell |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201435422Y (en) * | 2009-02-09 | 2010-03-31 | 惠州亿纬锂能股份有限公司 | Cylinder lithium/manganese dioxide primary battery |
| CN101694881A (en) * | 2009-10-19 | 2010-04-14 | 惠州亿纬锂能股份有限公司 | Safe cylindrical lithium-manganese dioxide battery |
| CN102067356A (en) * | 2008-04-29 | 2011-05-18 | 无穷动力解决方案股份有限公司 | Robust metal film encapsulation |
| JP2012203984A (en) * | 2011-03-23 | 2012-10-22 | Toppan Printing Co Ltd | Packaging material for battery and secondary battery |
| CN206673027U (en) * | 2017-04-24 | 2017-11-24 | 武汉孚安特科技有限公司 | High power capacity carbon-ring type cylindrical lithium manganese cell structure |
| CN108565492A (en) * | 2018-06-12 | 2018-09-21 | 无锡凯帕德瑞科技有限公司 | A kind of lithium ion battery and its shell |
| CN209169208U (en) * | 2018-12-12 | 2019-07-26 | 广州市金强工贸发展有限公司 | A kind of battery case reducing battery explosion harm |
| JP2020161249A (en) * | 2019-03-25 | 2020-10-01 | 積水化学工業株式会社 | Battery cell and battery |
-
2020
- 2020-11-30 CN CN202011372643.0A patent/CN112510295A/en not_active Withdrawn
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102067356A (en) * | 2008-04-29 | 2011-05-18 | 无穷动力解决方案股份有限公司 | Robust metal film encapsulation |
| CN201435422Y (en) * | 2009-02-09 | 2010-03-31 | 惠州亿纬锂能股份有限公司 | Cylinder lithium/manganese dioxide primary battery |
| CN101694881A (en) * | 2009-10-19 | 2010-04-14 | 惠州亿纬锂能股份有限公司 | Safe cylindrical lithium-manganese dioxide battery |
| JP2012203984A (en) * | 2011-03-23 | 2012-10-22 | Toppan Printing Co Ltd | Packaging material for battery and secondary battery |
| CN206673027U (en) * | 2017-04-24 | 2017-11-24 | 武汉孚安特科技有限公司 | High power capacity carbon-ring type cylindrical lithium manganese cell structure |
| CN108565492A (en) * | 2018-06-12 | 2018-09-21 | 无锡凯帕德瑞科技有限公司 | A kind of lithium ion battery and its shell |
| CN209169208U (en) * | 2018-12-12 | 2019-07-26 | 广州市金强工贸发展有限公司 | A kind of battery case reducing battery explosion harm |
| JP2020161249A (en) * | 2019-03-25 | 2020-10-01 | 積水化学工業株式会社 | Battery cell and battery |
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Application publication date: 20210316 |