CN104681752A - Cylindrical lithium battery - Google Patents
Cylindrical lithium battery Download PDFInfo
- Publication number
- CN104681752A CN104681752A CN201510048733.7A CN201510048733A CN104681752A CN 104681752 A CN104681752 A CN 104681752A CN 201510048733 A CN201510048733 A CN 201510048733A CN 104681752 A CN104681752 A CN 104681752A
- Authority
- CN
- China
- Prior art keywords
- housing
- lithium battery
- battery
- positive terminal
- shell
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/10—Primary casings, jackets or wrappings of a single cell or a single battery
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/10—Primary casings, jackets or wrappings of a single cell or a single battery
- H01M50/147—Lids or covers
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/10—Primary casings, jackets or wrappings of a single cell or a single battery
- H01M50/183—Sealing members
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/30—Arrangements for facilitating escape of gases
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/60—Arrangements or processes for filling or topping-up with liquids; Arrangements or processes for draining liquids from casings
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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 invention discloses a cylindrical lithium battery. The cylindrical lithium battery comprises a battery cell, a cylindrical inner housing, a housing, a positive terminal and a negative terminal, wherein the battery cover is packaged in the inner housing; the housing covers the inner housing; the positive terminal and the negative terminal are positioned on middle positions of upper and lower end surfaces of the housing respectively, and a cover plate is arranged on the upper end surface of the housing; a glue injection opening A is formed in the cover plate; a glue injection opening B is formed in a position, corresponding to the glue injection opening A, in the lower end surface of the housing; high heat-conduction electronic silica gel is filled between the inner housing and the housing. According to the cylindrical lithium battery disclosed by the invention, the high heat-conduction electronic silica gel can enable the cylindrical lithium ion battery to conduct heat produced by the battery cell into the environment more quickly and uniformly, the sealing performance and the vibration resistance of the housing are effectively improved; the high heat-conduction electronic silica gel belongs to room-temperature curing organic silicon rubber, has excellent electrical performance, ageing resistance, cold and hot alternating resistance, moisture resistance, non-swelling performance, vibration resistance and water resistance, so that the safety coefficient of the lithium battery in the using process can be increased.
Description
Technical field
The present invention relates to a kind of battery, particularly relate 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 inventor 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.
Summary of the invention
The object of the invention is to for the deficiencies in the prior art, the cylinder type lithium battery of a kind of rapid heat dissipation, good stability is provided.
For solving the problems of the technologies described above, the technical solution used in the present invention 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.
Beneficial effect of the present invention is as follows:
1. the present invention adopts high heat conductive electronic silica gel, 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 present invention 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 inner casing of the present invention 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. positive terminal of the present invention 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 invention 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 invention.
Fig. 2 is positive terminal structural representation of the present invention.
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, embodiments of the present invention are described below, person skilled in the art scholar the content disclosed by this specification can understand other advantages of the present invention and effect easily.
As depicted in figs. 1 and 2, the invention 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 invention, 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 invention 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.Positive terminal 4 of the present invention 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 invention 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 the specific embodiment of the present invention, but protection scope of the present invention is not limited to therewith, without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.Application claims protection range 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 is 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 1, 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 5, 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 |
|---|---|---|---|
| CN201510048733.7A CN104681752A (en) | 2015-01-30 | 2015-01-30 | Cylindrical lithium battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510048733.7A CN104681752A (en) | 2015-01-30 | 2015-01-30 | Cylindrical lithium battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104681752A true CN104681752A (en) | 2015-06-03 |
Family
ID=53316537
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510048733.7A Pending CN104681752A (en) | 2015-01-30 | 2015-01-30 | Cylindrical lithium battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104681752A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN110581308A (en) * | 2019-09-27 | 2019-12-17 | 福建飞毛腿动力科技有限公司 | structure and implementation method of semi-glue-pouring waterproof battery |
| CN110581308B (en) * | 2019-09-27 | 2024-04-26 | 福建飞毛腿动力科技有限公司 | Structure of semi-glue-filled waterproof battery and implementation method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101453002A (en) * | 2007-11-29 | 2009-06-10 | 比亚迪股份有限公司 | Battery and method for preparing the same |
| CN102055003A (en) * | 2009-10-30 | 2011-05-11 | 财团法人工业技术研究院 | Battery pack with thermal conducting adhesives |
| CN203617383U (en) * | 2013-11-27 | 2014-05-28 | 浙江正电新能源有限公司 | Unit cell with polar columns with functions of liquid injecting and gas exhausting |
| CN204464324U (en) * | 2015-01-30 | 2015-07-08 | 中天储能科技有限公司 | A kind of cylinder type lithium battery |
-
2015
- 2015-01-30 CN CN201510048733.7A patent/CN104681752A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101453002A (en) * | 2007-11-29 | 2009-06-10 | 比亚迪股份有限公司 | Battery and method for preparing the same |
| CN102055003A (en) * | 2009-10-30 | 2011-05-11 | 财团法人工业技术研究院 | Battery pack with thermal conducting adhesives |
| CN203617383U (en) * | 2013-11-27 | 2014-05-28 | 浙江正电新能源有限公司 | Unit cell with polar columns with functions of liquid injecting and gas exhausting |
| CN204464324U (en) * | 2015-01-30 | 2015-07-08 | 中天储能科技有限公司 | A kind of cylinder type lithium battery |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN110581308A (en) * | 2019-09-27 | 2019-12-17 | 福建飞毛腿动力科技有限公司 | structure and implementation method of semi-glue-pouring waterproof battery |
| CN110581308B (en) * | 2019-09-27 | 2024-04-26 | 福建飞毛腿动力科技有限公司 | Structure of semi-glue-filled waterproof battery and implementation method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150603 |