CN101494277A - Non-metal case lithium ion battery - Google Patents
Non-metal case lithium ion battery Download PDFInfo
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- CN101494277A CN101494277A CNA2008100005546A CN200810000554A CN101494277A CN 101494277 A CN101494277 A CN 101494277A CN A2008100005546 A CNA2008100005546 A CN A2008100005546A CN 200810000554 A CN200810000554 A CN 200810000554A CN 101494277 A CN101494277 A CN 101494277A
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- lithium ion
- metal case
- ion battery
- battery
- case lithium
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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 the technique field of battery, in particular to a nonmetallic shell lithium ion battery which comprises a battery cell and a nonmetallic shell. The nonmetallic shell ensures the safety performance and electrochemical property of the lithium ion battery effectively; in addition, the nonmetallic shell lithium ion battery has the advantages of low manufacturing cost, convenient recycling, little energy consumption, various apparent colors which can be adjusted according to actual needs, strong operability, good repeatability and products with stable quality and good performance.
Description
Technical field
The invention belongs to the battery technology field, relate to a kind of lithium ion battery, more particularly, the present invention relates to a kind of non-metal case lithium ion battery, this non-metal case lithium ion battery contains electric core and non-metal case.
This non-metal case has ensured the security performance and the chemical property of lithium ion battery effectively; In addition, the low cost of manufacture of non-metal case lithium ion battery, the little energy that reclaims conveniently, consumes, appearance color is varied.Strong operability of the present invention, favorable reproducibility, the constant product quality of gained, function admirable.
Background technology
As everyone knows, lithium ion battery and polymer Li-ion battery have that energy density height, specific power are big, good cycle, memory-less effect, characteristics such as pollution-free are (referring to Wu Yuping, Dai Xiaobing, the horse army flag, the pre-river of journey. " lithium ion battery---use and put into practice ". Beijing: Chemical Industry Press, 2004; Wu Yuping, Zhang Hanping, Wu Feng, Li Chaohui, " polymer Li-ion battery ", Beijing: Chemical Industry Press, 2007), so their development is very fast.But, because its metal-back that adopts and composite membrane.For metal-back,,, yet can't ensure 100% safety although take multiple safety component because its resistance to pressure is strong; Production of metal-back simultaneously and recovery will consume a large amount of energy.And for polymer Li-ion battery, because the housing material that uses is the composite membrane of polymer and aluminium film, therefore the situation in interior pressure is easy to distortion, cause the remarkable deterioration of chemical property of polymer Li-ion battery and lost efficacy, the living main cause of cutting down output wherein is in charge and discharge process, and the organic electrolyte of plasticising will slowly react with anodal, negative material; Simultaneously, this composite membrane be difficult for to reclaim, and the preparation process of this film has relatively high expectations, and the production qualification rate of polymer Li-ion battery is low, and from whole cost, polymer Li-ion battery is apparently higher than lithium ion battery.In addition, the appearance color of metallic shell lithium-ion battery and polymer Li-ion battery can not change, and seems very dull.Therefore, rich and varied in order to ensure low, the easy recovery of cost, the outward appearance of lithium ion battery, it is extremely important that the development of lithium ion battery shell just seems.
Summary of the invention:
In order to overcome the problem that above-mentioned metallic shell lithium-ion battery and polymer Li-ion battery are low at production cost, qualification rate, reclaim aspect such as difficulty, the present inventor is carrying out extensive studies to this field, adopt the shell of non-metal case as lithium ion battery, found that this non-metal case lithium ion battery has good stable, have good electrochemical on the one hand, have good security performance on the other hand; And the production cost of battery case is low, and less energy consumption reclaims very conveniently, and also on the one hand the color of outward appearance can be adjusted as required.
Therefore, main purpose of the present invention provides a kind of non-metal case lithium ion battery, and this non-metal case lithium ion battery comprises electric core and non-metal case.This non-metal case has certain intensity, can guarantee to depress (＜5 atmospheric pressure) and can not lose efficacy in lower; Simultaneously, when interior pressure surpassed to a certain degree (＞5 atmospheric pressure), battery case can destroy, and in time discharges interior pressure, prevents that lithium ion battery is out of control, took place on fire and exploded.This non-metal case lithium ion battery has good electrochemical and security performance, and the production cost of battery case is low, and less energy consumption reclaims very convenient.
The present invention mainly provides a kind of non-metal case lithium ion battery, and a kind of non-metal case lithium ion battery, this non-metal case lithium ion battery comprise with lower member:
(1) battery;
(2) non-metal case.
Wherein said parts (1) battery is made up of positive pole, barrier film or polymer dielectric, negative pole.
Above-mentioned parts (2) non-metal case can be square, circular, oval, square and circular shape or other the special-shaped shape that combines.
The material of above-mentioned parts (2) non-metal case can be a high-molecular organic material, comprises plastics, rubber, fiber, also can be the compound of high-molecular organic material and inorganic material.Described high-molecular organic material can be olefin polymer or its blend, comprise polyethylene, polystyrene, polypropylene, polyvinyl chloride, ethylene-propylene rubber, poly-(isoprene), also can be condensation polymer or its blend, comprise nylon, polyester, phenolic resins, epoxy resin, polysiloxanes.Described inorganic material can be functional filler or additive, comprises anti-flammability, plasticity, conductivity, coloring, enhancing, smoothing preparation, anti-wear agent.Described functional filler or additive comprise carbon black, titanium dioxide, aluminium oxide, silica, calcium carbonate, glass fibre, look mother, talcum powder.
It is considered herein that; because the employing of non-metal case parts; can reach the purpose of lithium ion battery and polymer Li-ion battery good electrical chemical property; the purpose that has simultaneously polymer Li-ion battery good safety energy again; but also reached the purpose that reduces cost with energy consumption, protection environment, also reached the purpose that the lithium ion battery outward appearance can be adjusted as required.
By non-metal case lithium ion battery provided by the invention, can be used for the production of lithium ion battery.And strong operability of the present invention, cost is lower, favorable reproducibility, the product appearance color of gained is varied, steady quality, function admirable.
To be described in more detail by embodiment below, but protection scope of the present invention is not limited to these embodiment.
Comparative Examples 1
Adopt the shell of stainless steel case as lithium ion battery, model is cylindrical 18650 (diameter is 18mm, highly is 65mm).With LiC0O
2Being the main active of positive pole, is the main active of negative pole with the native graphite, is barrier film with Celgard 2400, is assembled into battery.Battery is put in above-mentioned columniform 18650 box hats, and added PTC terminal, add electrolyte then, change into, shelve, seal with security performance.The battery outward appearance is the gloss of metallic iron.
Safety test: above-mentioned cylindrical 18650 lithium ion batteries that are full of electricity are placed 80 ℃ hot case, found that battery was blasted through 1 hour.
Electrochemical property test: cylindrical 18650 lithium ion batteries after will sealing at room temperature circulate, and are charged to 4.2V with 1C earlier, and then at the 4.2V constant current charge, the termination electric current is 0.01C.Purchase 5 minutes, with the 1C discharge, final discharging voltage is 2.75V then.After the result showed 500 circulations, residual capacity was 92%.
Embodiment 1
Employing is added with the shell of the polyvinyl chloride shell of titanium dioxide filler as lithium ion battery, and model is cylindrical 18650 (diameter is 18mm, highly is 65mm).The composition of battery is identical with Comparative Examples 1.Battery is put in above-mentioned columniform 18650 plastic housings, and added PTC terminal, add electrolyte then, change into, shelve, seal with security performance.The battery outward appearance is nontransparent white.
Safety test: above-mentioned cylindrical 18650 lithium ion batteries that are full of electricity are placed 80 ℃ hot case, found that battery, find obviously distortion through after 1 hour; Through 10 hours, do not blast yet.
Electrochemical property test is identical with Comparative Examples 1.After the result showed 500 circulations, the same with Comparative Examples 1, residual capacity was 92%.
Comparative Examples 2
Adopt the shell of aluminum hull as lithium ion battery, model is square 356080 (widely be 35mm, longly be 60mm, height is 80mm).With Li[Co
1/3Ni
1/3Mn
1/3] O
2Being the main active of positive pole, is the main active of negative pole with the Delanium, is barrier film with Celgard 2400, is assembled into battery.Battery is put in above-mentioned square 356080 aluminum hulls, added electrolyte then, change into, shelve, seal.The battery outward appearance is the gloss of metallic aluminium.
Safety test: above-mentioned cylindrical 18650 lithium ion batteries that are full of electricity are placed 80 ℃ hot case, found that battery was blasted through 0.5 hour.
Electrochemical property test is identical with Comparative Examples 1.After the result showed 500 circulations, residual capacity was 87%.
Embodiment 2
Employing be added with that glass fibre strengthens and mother's Lan Sese polypropylene alkene shell as the shell of lithium ion battery, model is square 356080 (widely be 35mm, long is 60mm, and height is 80mm).The composition of battery is identical with Comparative Examples 2.Battery is put in above-mentioned square 356080 plastic housings, added electrolyte then, change into, shelve, seal.The battery outward appearance is blue look.
Safety test: above-mentioned cylindrical 18650 lithium ion batteries that are full of electricity are placed 80 ℃ hot case, found that battery through after 0.5 hour, finds slight deformation; Through 10 hours, do not blast yet.
Electrochemical property test is identical with Comparative Examples 1.After the result showed 500 circulations, the same with Comparative Examples 2, residual capacity was 87%.
Comparative Examples 3
Adopt the shell of plastic-aluminum combined shell as polymer Li-ion battery, model is square 045090 (the thick 4.0mm of being, wide is 50mm, grows to be 90mm).With LiFePO
4Being the main active of positive pole, is the main active of negative pole with the native graphite, with at Celgard 2400 film surface aggregates the film of one deck polymethyl methacrylate be barrier film, be assembled into battery.Battery is put in above-mentioned square 045090 composite membrane, added electrolyte then, change into, shelve, seal.The qualification rate of finding product is 85%, and the battery outward appearance is the gloss of metallic aluminium.
Safety test: above-mentioned square 045090 polymer Li-ion battery that is full of electricity is placed 80 ℃ hot case, found that through 0.2 hour, significantly distortion takes place in battery, can not use.
Electrochemical property test is identical with Comparative Examples 1, and except the constant voltage charge final voltage is 3.8V, final discharging voltage is 2.5V.After the result showed 500 circulations, the same with Comparative Examples 2, residual capacity was 96%.
Embodiment 3
Employing adds the shell of the blend shell of polysiloxane and poly-(ethylene glycol terephthalate) as lithium ion battery, and model is square 045090 (thickly be 4.0mm, wide be 50mm, and long is 90mm).The composition of battery is identical with Comparative Examples 3.Battery is put in above-mentioned square 356080 plastic housings, added electrolyte then, change into, shelve, seal.The qualification rate of finding product is 99%, and apparently higher than Comparative Examples 3, the battery outward appearance is a milky.
Safety test: above-mentioned square 045090 lithium ion battery that is full of electricity is placed 80 ℃ hot case, found that battery through after 0.5 hour, finds slight deformation; Through 10 hours, do not blast yet.
Electrochemical property test is identical with Comparative Examples 3.After the result showed 500 circulations, the same with Comparative Examples 3, residual capacity was 96%.
Embodiment 4
Employing is added with the shell of the mixture shell of talcum powder, yellow look mother and high density polyethylene (HDPE) as lithium ion battery, and model is square 045090 (the thick 4.0mm of being, wide is 50mm, grows to be 90mm).The composition of battery is identical with Comparative Examples 3.Battery is put in above-mentioned square 356080 plastic housings, added electrolyte then, change into, shelve, seal.The qualification rate of finding product is 99%, and apparently higher than Comparative Examples 3, the battery outward appearance is yellow.
Safety test: above-mentioned cylindrical 18650 lithium ion batteries that are full of electricity are placed 80 ℃ hot case, found that battery through after 0.5 hour, finds slight deformation; Through 10 hours, do not blast yet.
Electrochemical property test is identical with Comparative Examples 3.After the result showed 500 circulations, the same with Comparative Examples 3, residual capacity was 96%.
By the contrast of above-mentioned Comparative Examples and embodiment, non-metal case lithium ion battery of the present invention as can be seen not only has good electrochemical, also has good security performance, and the color of outward appearance can be adjusted as required.
Claims (7)
1. non-metal case lithium ion battery, this non-metal case lithium ion battery comprises with lower member:
(1) battery;
(2) non-metal case.
2. non-metal case lithium ion battery according to claim 1, battery wherein is made up of positive pole, barrier film or polymer dielectric, negative pole.
3. non-metal case lithium ion battery according to claim 1, non-metal case wherein can be square, circular, ellipticalness, square and circular shape or other the special-shaped shape that combines.
4. non-metal case lithium ion battery according to claim 1, the material of non-metal case wherein can be a high-molecular organic material, comprises plastics, rubber, fiber, also can be the compound of high-molecular organic material and inorganic material.
5. according to claim 1 or 4 described non-metal case lithium ion batteries, high-molecular organic material wherein can be olefin polymer or its blend, comprise polyethylene, polystyrene, polypropylene, polyvinyl chloride, ethylene-propylene rubber, poly-(isoprene), also can be condensation polymer or its blend, comprise nylon, polyester, phenolic resins, epoxy resin, polysiloxanes.
6. according to claim 1 or 4 described non-metal case lithium ion batteries, inorganic material wherein can be functional filler or additive, comprises anti-flammability, plasticity, conductivity, coloring, enhancing, smoothing preparation, anti-wear agent.
7. according to claim 1,4 or 6 described non-metal case lithium ion batteries, inorganic material wherein comprises carbon black, titanium dioxide, aluminium oxide, silica, calcium carbonate, glass fibre, look mother, talcum powder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100005546A CN101494277A (en) | 2008-01-21 | 2008-01-21 | Non-metal case lithium ion battery |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100005546A CN101494277A (en) | 2008-01-21 | 2008-01-21 | Non-metal case lithium ion battery |
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| CN101494277A true CN101494277A (en) | 2009-07-29 |
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| CNA2008100005546A Pending CN101494277A (en) | 2008-01-21 | 2008-01-21 | Non-metal case lithium ion battery |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102332550A (en) * | 2010-07-13 | 2012-01-25 | 三星Sdi株式会社 | Lithium secondary battery |
| CN102558654A (en) * | 2011-12-31 | 2012-07-11 | 李松 | Compound plastic and lithium ion battery and battery pack manufactured by using same and assembling method thereof |
| CN102585360A (en) * | 2011-12-31 | 2012-07-18 | 李松 | Composite plastic, manufacturing method and encapsulation shell, lithium battery and battery pack manufactured by using composite plastic |
| CN102653614A (en) * | 2011-12-14 | 2012-09-05 | 中聚电池研究院有限公司 | Formula of lithium battery shell and preparation method for lithium battery shell |
| CN102664241A (en) * | 2011-12-27 | 2012-09-12 | 东莞新能德科技有限公司 | Lithium ion battery and preparation method thereof |
| CN102683741A (en) * | 2012-06-07 | 2012-09-19 | 东莞新能德科技有限公司 | Lithium-ion battery |
| CN103131085A (en) * | 2011-12-02 | 2013-06-05 | 合肥杰事杰新材料股份有限公司 | High-tenacity environment-friendly inflaming retarding polypropylene material and preparation method and application thereof |
| CN108659361A (en) * | 2018-03-15 | 2018-10-16 | 苏州甫众塑胶有限公司 | A kind of composite material and preparation method for manufacturing all solid state alkaline battery shell |
-
2008
- 2008-01-21 CN CNA2008100005546A patent/CN101494277A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102332550A (en) * | 2010-07-13 | 2012-01-25 | 三星Sdi株式会社 | Lithium secondary battery |
| CN103131085A (en) * | 2011-12-02 | 2013-06-05 | 合肥杰事杰新材料股份有限公司 | High-tenacity environment-friendly inflaming retarding polypropylene material and preparation method and application thereof |
| CN103131085B (en) * | 2011-12-02 | 2016-04-20 | 合肥杰事杰新材料股份有限公司 | A kind of high tenacity environment-friendly flame-proof polypropylene material and preparation method thereof and application |
| CN102653614A (en) * | 2011-12-14 | 2012-09-05 | 中聚电池研究院有限公司 | Formula of lithium battery shell and preparation method for lithium battery shell |
| CN102653614B (en) * | 2011-12-14 | 2013-12-25 | 中聚电池研究院有限公司 | Formula of lithium battery shell and preparation method for lithium battery shell |
| CN102664241A (en) * | 2011-12-27 | 2012-09-12 | 东莞新能德科技有限公司 | Lithium ion battery and preparation method thereof |
| CN102558654A (en) * | 2011-12-31 | 2012-07-11 | 李松 | Compound plastic and lithium ion battery and battery pack manufactured by using same and assembling method thereof |
| CN102585360A (en) * | 2011-12-31 | 2012-07-18 | 李松 | Composite plastic, manufacturing method and encapsulation shell, lithium battery and battery pack manufactured by using composite plastic |
| CN102683741A (en) * | 2012-06-07 | 2012-09-19 | 东莞新能德科技有限公司 | Lithium-ion battery |
| CN108659361A (en) * | 2018-03-15 | 2018-10-16 | 苏州甫众塑胶有限公司 | A kind of composite material and preparation method for manufacturing all solid state alkaline battery shell |
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Open date: 20090729 |