CN204464324U - A kind of cylinder type lithium battery - Google Patents
A kind of cylinder type lithium battery Download PDFInfo
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- CN204464324U CN204464324U CN201520066937.9U CN201520066937U CN204464324U CN 204464324 U CN204464324 U CN 204464324U CN 201520066937 U CN201520066937 U CN 201520066937U CN 204464324 U CN204464324 U CN 204464324U
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- shell
- inner casing
- lithium battery
- gum
- positive terminal
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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
Abstract
The utility model discloses a kind of cylinder type lithium battery, comprise battery core, cylindrical inner casing, shell, positive terminal and negative terminal, described battery core is wrapped in wherein by described inner casing, and described shell wraps inner casing; Described positive terminal and negative terminal lay respectively at the centre position of the upper and lower end face of described shell, and described shell upper surface is provided with a cover plate; Described cover plate is provided with gum-injecting port A, and lower surface and the gum-injecting port A correspondence position of described shell are provided with gum-injecting port B; High heat conductive electronic silica gel is filled with between described inner casing and described shell.The utility model is by high heat conductive electronic silica gel, column lithium ion battery can be made faster evenly the heat conduction that battery core is produced in environment, and effectively improve sealing and the anti-seismic performance of shell, high heat conductive electronic silica gel belongs to cold curing organic silicon rubber, there is superior electric property, ageing-resistant, cold-and-heat resistent alternation performance, protection against the tide are not swelling, shockproof, waterproof, can increase lithium battery coefficient of safety in use.
Description
Technical field
The utility model relates to a kind of battery, particularly relates to the cylinder type lithium battery of a kind of rapid heat dissipation, good stability.
Background technology
Lithium battery is a class is negative material, the battery using non-aqueous electrolytic solution by lithium metal or lithium alloy.The lithium battery occurred the earliest comes from great utility model man Edison, uses following reaction: Li+MnO
2=LiMnO
2this reaction is redox reaction, electric discharge.Because the chemical characteristic of lithium metal is very active, make the processing of lithium metal, preservation, use, very high to environmental requirement.So lithium battery is not applied for a long time.Along with the development of science and technology, present lithium battery becomes main flow.
Lithium battery earliest period is applied in cardiac pacemaker.The self-discharge rate of lithium battery is extremely low, and discharge voltage is mild.Make the pacemaker of implant into body can long-term operation and need not again charging.Lithium battery generally has the nominal voltage higher than 3.0 volts, is more suitable for making ic power.Manganese dioxide battery, is just widely used in calculator, in digital camera, wrist-watch.In order to develop the more excellent kind of performance, people are studied various material, thus produce unprecedented product.Within 1992, Sony successfully develops lithium ion battery.It practical, makes the weight and volume of the handheld electronic apparatus such as the mobile phone of people, notebook, calculator greatly reduce.Along with digital product widely using as the product such as mobile phone, notebook computer, lithium ion battery is used widely in this series products with the performance of excellence, and is progressively developing to other product applications.
During lithium cell core discharge and recharge, except the restriction of voltage, the restriction of electric current also has it necessary.When electric current is excessive, lithium ion has little time to enter memory location, can be gathered in material surface.These lithium ions obtain after electronics, can produce lithium atom crystallization at material surface, this with overcharge the same, can danger be caused.Just in case battery case breaks, will explode.Therefore, to the protection of lithium ion battery, at least to comprise: the charging voltage upper limit, discharge voltage lower limit and upper current limit three.In general lithium battery group, except lithium cell core, all can have a slice baffle, this sheet baffle is mainly just to provide these three protections.But these three protections of baffle are obviously inadequate, and global lithium battery explosive incident still keeps pouring in.Guarantee the fail safe of battery system, to the reason of battery explosion, more careful analysis must be carried out.Analyze after deliberation, the reason of battery explosion mainly contains following several respects:
1, internal polarization is larger;
2, pole piece water suction, to react tympanites with electrolyte;
3, the quality of electrolyte itself, performance issue;
4, when fluid injection, reservoir quantity does not reach technological requirement;
5, assemble Laser Welding welded seal poor performance in processing procedure, gas leakage, leak hunting gas time test leakage;
6, dust, pole piece dust first easily causes micro-short circuit;
7, positive/negative plate is partially thick compared with processing range, enters shell difficulty;
8, fluid injection sealing problem, steel ball sealing property is bad causes tympanites;
9, to there is shell wall partially thick for housing supplied materials, and housing distortion affects thickness;
10, outside environment temperature is too high is also the main cause causing exploding.
The cylinder type lithium battery of prior art is due to the factor of technical matters, certain space is there is between battery core and shell, this space is generally low vacuum or there is certain gas, thus the heat that battery core produces can not conduct to battery case effectively, uniformly and then be dispersed in external environment condition, when battery operated, easily the overheated battery thermal runaway that causes makes battery deform, even blast, cause the injures and deaths of personnel; Sealing and the shock resistance of battery case are undesirable, also easily make cell damage, produce safety problem.
Utility model content
The purpose of this utility model is for the deficiencies in the prior art, provides the cylinder type lithium battery of a kind of rapid heat dissipation, good stability.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of cylinder type lithium battery, and comprise battery core, cylindrical inner casing, shell, positive terminal, negative terminal, described battery core is wrapped in wherein by described inner casing, and described shell wraps inner casing; Described positive terminal and negative terminal lay respectively at the centre position of the upper and lower end face of described shell, and described shell upper surface is provided with a cover plate; Described cover plate is provided with gum-injecting port A, and lower surface and the gum-injecting port A correspondence position of described shell are provided with gum-injecting port B; High heat conductive electronic silica gel is filled with between described inner casing and described shell.
Further, described inner casing is compound aluminum plastic film, and described shell is the one in aluminum hull or box hat.
Further, described positive terminal and negative terminal all overlap a nut matched with described positive terminal and negative terminal.
Further, pad is provided with between described nut and described housing contacts face.
Further, the centre position of described positive terminal is provided with liquid injection port.
Preferably, described liquid injection port is other is also provided with exhaust outlet.
The beneficial effects of the utility model are as follows:
1. the utility model adopts high heat conductive electronic silica gel, and rapid heat dissipation has superior electric property, and ageing-resistant, cold-and-heat resistent alternation performance, protection against the tide are not swelling, shockproof, waterproof, can increase lithium battery coefficient of safety in use
2. the utility model is in use, by being full of the high heat conductive electronic silica gel between inner casing and shell, column lithium ion battery can be made faster evenly the heat conduction that battery core is produced in environment, and effectively improve sealing and the anti-seismic performance of shell.
3. the high heat conductive electronic silica gel between the utility model inner casing and shell belongs to cold curing organic silicon rubber, there is superior electric property, ageing-resistant, cold-and-heat resistent alternation performance, protection against the tide are not swelling, shockproof, waterproof, can increase lithium battery coefficient of safety in use.
4. the utility model positive terminal and negative terminal all overlap a nut, is provided with pad between nut and housing contacts face, in order to fixing battery core and be used for, with the insulation of shell, improve electrical insulating property and stability.
5. positive terminal of the present utility model is provided with liquid injection port and exhaust outlet, has fluid injection and the exhaust decompression function of lithium battery electrolytes.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is positive terminal structural representation of the present utility model.
Attached number in the figure: 1, battery core; 2, aluminum plastic film inner casing; 3, shell; 4, positive terminal; 5, negative terminal; 6, cover plate; 7, gum-injecting port A; 8, gum-injecting port B; 9, high heat conductive electronic silica gel; 10, nut; 11, pad; 12, liquid injection port; 13, exhaust outlet.
Embodiment
By particular specific embodiment, execution mode of the present utility model is described below, person skilled in the art scholar the content disclosed by this specification can understand other advantages of the present utility model and effect easily.
As depicted in figs. 1 and 2, the utility model discloses a kind of cylinder type lithium battery, comprise battery core 1, cylindrical inner casing 2, shell 3, positive terminal 4 and negative terminal 5, battery core 1 is wrapped in wherein by inner casing 2, and shell 3 wraps inner casing 2.Positive terminal 4 and negative terminal 5 lay respectively at the centre position of the upper and lower end face of shell 3.Shell 3 upper surface is provided with a cover plate 6, and cover plate 6 is provided with gum-injecting port A7, and lower surface and the gum-injecting port A7 correspondence position of shell 3 are provided with gum-injecting port B8.High heat conductive electronic silica gel 9 is filled with between inner casing 2 and shell 3.
As to further optimization of the present utility model, inner casing 2 is compound aluminum plastic film, and shell 3 is the one in aluminum hull or box hat.Positive terminal 4 and negative terminal 5 all overlap a nut 10 matched with positive terminal 4 and negative terminal 5.Pad 11 is provided with between nut 10 and shell 3 contact-making surface.The centre position of positive terminal 4 is provided with liquid injection port 12.Liquid injection port 12 is other is also provided with exhaust outlet 13.
High heat conductive electronic silica gel of the present utility model belongs to cold curing organic silicon rubber, it has excellent heat conductivility, conductive coefficient after solidification reaches 1.1-1.3 [W/ (mk)], also there is superior electric property simultaneously, ageing-resistant, cold-and-heat resistent alternation performance, protection against the tide are not swelling, electrical insulating property, shockproof, waterproof, good stability, can increase lithium battery coefficient of safety in use.In use, by the high heat conductive electronic silica gel 9 filled up between inside and outside shell, the thermal diffusion of battery core 1 can be made more even, and fast heat can be imported shell 3, accelerate radiating rate, and effectively can improve shock resistance and the sealing of lithium battery.The utility model positive terminal 4 and negative terminal 5 all overlap a nut 10, is provided with pad 11 between nut 10 and shell 3 contact-making surface, in order to fixing battery core 1 and be used for, with the insulation of shell 3, improve electrical insulating property and stability.Positive terminal 4 of the present utility model is provided with liquid injection port 12 and exhaust outlet 13, has fluid injection and the exhaust decompression function of lithium battery electrolytes.
The above; be only embodiment of the present utility model; but protection range of the present utility model does not limit to therewith; under the prerequisite not departing from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (5)
1. a cylinder type lithium battery, comprise battery core (1), cylindrical inner casing (2), shell (3), positive terminal (4), negative terminal (5), described battery core (1) is wrapped in wherein by described inner casing (2), and described shell (3) wraps inner casing (2); Described positive terminal (4) and negative terminal (5) lay respectively at the centre position of the upper and lower end face of described shell (3), it is characterized in that:
Described shell (3) upper surface is provided with a cover plate (6); Described cover plate (6) is provided with gum-injecting port A (7);
Described shell (3) lower surface and gum-injecting port A (7) correspondence position are provided with gum-injecting port B (8);
High heat conductive electronic silica gel (9) is filled with between described inner casing (2) and described shell (3).
2. a kind of cylinder type lithium battery according to claim 1, is characterized in that: described positive terminal (4) and negative terminal (5) all overlap a nut (10) matched with described positive terminal (4) and negative terminal (5).
3. a kind of cylinder type lithium battery according to claim 2, is characterized in that: be provided with pad (11) between described nut (10) and described shell (3) contact-making surface.
4. a kind of cylinder type lithium battery according to claim 1, is characterized in that: the centre position of described positive terminal (4) is provided with liquid injection port (12).
5. a kind of cylinder type lithium battery according to claim 4, is characterized in that: described liquid injection port (12) is other is also provided with exhaust outlet (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520066937.9U CN204464324U (en) | 2015-01-30 | 2015-01-30 | A kind of cylinder type lithium battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520066937.9U CN204464324U (en) | 2015-01-30 | 2015-01-30 | A kind of cylinder type lithium battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204464324U true CN204464324U (en) | 2015-07-08 |
Family
ID=53671165
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520066937.9U Active CN204464324U (en) | 2015-01-30 | 2015-01-30 | A kind of cylinder type lithium battery |
Country Status (1)
| Country | Link |
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| CN (1) | CN204464324U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104681752A (en) * | 2015-01-30 | 2015-06-03 | 中天储能科技有限公司 | Cylindrical lithium battery |
| CN105576156A (en) * | 2016-02-15 | 2016-05-11 | 东莞市云帆电子科技有限公司 | Battery filled with sealant |
| CN106025342A (en) * | 2016-06-30 | 2016-10-12 | 中天储能科技有限公司 | Low-cost aluminum-structured lithium ion battery |
-
2015
- 2015-01-30 CN CN201520066937.9U patent/CN204464324U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104681752A (en) * | 2015-01-30 | 2015-06-03 | 中天储能科技有限公司 | Cylindrical lithium battery |
| CN105576156A (en) * | 2016-02-15 | 2016-05-11 | 东莞市云帆电子科技有限公司 | Battery filled with sealant |
| CN106025342A (en) * | 2016-06-30 | 2016-10-12 | 中天储能科技有限公司 | Low-cost aluminum-structured lithium ion battery |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170605 Address after: 226463 Zhongtian village, Hekou Town, Rudong County, Jiangsu Patentee after: Zhongtian Science and Technology Co., Ltd., Jiangsu Address before: Hongxing economic and Technological Development Zone, Jiangsu province Nantong City Road 226000 No. 36 Patentee before: ZHONGTIAN ENERGY STORAGE TECHNOLOGY CO., LTD. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170712 Address after: Hongxing economic and Technological Development Zone, Jiangsu province Nantong City Road 226000 No. 36 Co-patentee after: Zhongtian Science and Technology Co., Ltd., Jiangsu Patentee after: ZHONGTIAN ENERGY STORAGE TECHNOLOGY CO., LTD. Address before: 226463 Zhongtian village, Hekou Town, Rudong County, Jiangsu Patentee before: Zhongtian Science and Technology Co., Ltd., Jiangsu |