CN102208575A - Novel lithium ion battery cover plate - Google Patents

Novel lithium ion battery cover plate Download PDF

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Publication number
CN102208575A
CN102208575A CN2011101100107A CN201110110010A CN102208575A CN 102208575 A CN102208575 A CN 102208575A CN 2011101100107 A CN2011101100107 A CN 2011101100107A CN 201110110010 A CN201110110010 A CN 201110110010A CN 102208575 A CN102208575 A CN 102208575A
Authority
CN
China
Prior art keywords
plastic
cover plate
lithium ion
ion battery
stainless steel
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
Application number
CN2011101100107A
Other languages
Chinese (zh)
Inventor
张永学
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NINGBO SHIJIE NEW ENERGY TECHNOLOGY CO LTD
Original Assignee
NINGBO SHIJIE NEW ENERGY TECHNOLOGY CO LTD
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by NINGBO SHIJIE NEW ENERGY TECHNOLOGY CO LTD filed Critical NINGBO SHIJIE NEW ENERGY TECHNOLOGY CO LTD
Priority to CN2011101100107A priority Critical patent/CN102208575A/en
Publication of CN102208575A publication Critical patent/CN102208575A/en
Pending legal-status Critical Current

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Classifications

    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage using batteries

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  • Sealing Battery Cases Or Jackets (AREA)

Abstract

The invention discloses a novel lithium ion battery cover plate, which comprises two plastic layers and a stainless steel layer sandwiched between the two plastic layers. The two plastic layers are compounded on the stainless steel layer by injection molding. By adopting the plastic-stainless steel-plastic three-layer compound superposed structure, the volume (compared with a pure plastic shell) of the battery shell can be reduced, the volumetric specific energy of the battery is improved, and the advantages of simplicity and convenience in the processing and liquid-filling methods of the plastic cover plate can be fully exerted at the same time; and the insulating performance and the work efficiency of the shell can be improved.

Description

A kind of new type lithium ion battery cover plate
(1) technical field
The present invention relates to a kind of lithium ion battery cover board.
(2) background technology
General pure plastic housing cover plate or the clean steel housing-plate of adopting of existing lithium ion battery cover board.The shortcoming that pure plastic housing cover plate exists is: volume is bigger, therefore causes the volume of battery specific energy less.The shortcoming that the clean steel housing-plate exists is: relatively poor, the faradic intensity of its insulation property is bigger.
(3) summary of the invention
In order to overcome the deficiency of existing lithium ion battery cover board, the invention provides and a kind ofly reduce battery cover board volume, good insulation preformance, significantly reduce the new type lithium ion battery cover plate of faradic intensity.
The technical scheme that the present invention solves its technical problem is: a kind of new type lithium ion battery cover plate is characterized in that: comprise the two layers of plastic layer and be sandwiched in the middle stainless steel layer of two layers of plastic layer.
Further, described two layers of plastic layer is compound on the described stainless steel layer by injection moulding.
Further, the material of described plastic layer is PP or PE or FRPP.
Beneficial effect of the present invention is: by adopting this plastics-stainless steel-three layers of complex superposition structure of plastics, can reduce battery case volume (comparing) on the one hand with pure plastic housing, thereby improved the battery volumetric specific energy, can give full play to plastic cover plate processing and the easy advantage of electrolyte filling method simultaneously again; Can improve casing insulation performance and operating efficiency (comparing) on the other hand with the clean steel shell.With the 80Ah lithium ion battery is example, compares with pure plastic housing, can reduce by about 24% volume, thereby the volume of battery specific energy can be improved 31.6%; Compare with the clean steel shell, can stop battery drain and significantly reduce faradic intensity, thereby guarantee the safe handling of battery, on the other hand, by Mold Making, consistent production in batches, thus significantly increase work efficiency.
(4) description of drawings
Fig. 1 is a structural representation of the present invention.
(5) embodiment
Below in conjunction with the drawings and specific embodiments the present invention is described in further detail.
With reference to Fig. 1, a kind of new type lithium ion battery cover plate comprises two layers of plastic layer 1 and the stainless steel layer 2 that is sandwiched in two layers of plastic layer 1 centre, and described two layers of plastic layer 1 is compound on the described stainless steel layer 2 by injection moulding.The material of described plastic layer 1 can be PP (polypropylene), also can be PE (polyethylene) or FRPP (fiber glass reinforced polypropylene) etc.
The present invention is by adopting this plastics-stainless steel-three layers of complex superposition structure of plastics, can reduce battery case volume (comparing) on the one hand with pure plastic housing, thereby improved the battery volumetric specific energy, can give full play to plastic cover plate processing and the easy advantage of electrolyte filling method simultaneously again; Can improve casing insulation performance and operating efficiency (comparing) on the other hand with the clean steel shell.With the 80Ah lithium ion battery is example, compares with pure plastic housing, can reduce by about 24% volume, thereby the volume of battery specific energy can be improved 31.6%; Compare with the clean steel shell, can stop battery drain and significantly reduce faradic intensity, thereby guarantee the safe handling of battery, on the other hand, by Mold Making, consistent production in batches, thus significantly increase work efficiency.

Claims (3)

1. a new type lithium ion battery cover plate is characterized in that: comprise the two layers of plastic layer and be sandwiched in the middle stainless steel layer of two layers of plastic layer.
2. new type lithium ion battery cover plate as claimed in claim 1 is characterized in that: described two layers of plastic layer is compound on the described stainless steel layer by injection moulding.
3. new type lithium ion battery cover plate as claimed in claim 1 or 2 is characterized in that: the material of described plastic layer is PP or PE or FRPP.
CN2011101100107A 2011-04-22 2011-04-22 Novel lithium ion battery cover plate Pending CN102208575A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011101100107A CN102208575A (en) 2011-04-22 2011-04-22 Novel lithium ion battery cover plate

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011101100107A CN102208575A (en) 2011-04-22 2011-04-22 Novel lithium ion battery cover plate

Publications (1)

Publication Number Publication Date
CN102208575A true CN102208575A (en) 2011-10-05

Family

ID=44697303

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2011101100107A Pending CN102208575A (en) 2011-04-22 2011-04-22 Novel lithium ion battery cover plate

Country Status (1)

Country Link
CN (1) CN102208575A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105070949A (en) * 2015-08-14 2015-11-18 江苏绿伟锂能有限公司 Cylindrical lithium-ion battery
CN107017361A (en) * 2017-05-24 2017-08-04 深圳市长盈精密技术股份有限公司 Cover plate of power battery and its electrokinetic cell

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2461154Y (en) * 2001-01-04 2001-11-21 纪明均 Battery top lid component containing safety valve
CN2561100Y (en) * 2002-07-30 2003-07-16 中山大学 Safety end cap of lithium ion cell
CN1444299A (en) * 2003-04-16 2003-09-24 王文林 Method for making aluminium cover plate of lithium cell
CN2833898Y (en) * 2005-08-19 2006-11-01 周基平 Lithium ion battery cover plate component and battery
CN101075664A (en) * 2007-04-05 2007-11-21 蔡松珊 Lithium-ion battery blind flange, and lithium-ion cell or battery therewith
CN201084762Y (en) * 2007-09-27 2008-07-09 深圳市比克电池有限公司 Battery cover plate
CN101931060A (en) * 2009-06-26 2010-12-29 比亚迪股份有限公司 Metal laminate plate, preparation method thereof and battery using metal laminate plate

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2461154Y (en) * 2001-01-04 2001-11-21 纪明均 Battery top lid component containing safety valve
CN2561100Y (en) * 2002-07-30 2003-07-16 中山大学 Safety end cap of lithium ion cell
CN1444299A (en) * 2003-04-16 2003-09-24 王文林 Method for making aluminium cover plate of lithium cell
CN2833898Y (en) * 2005-08-19 2006-11-01 周基平 Lithium ion battery cover plate component and battery
CN101075664A (en) * 2007-04-05 2007-11-21 蔡松珊 Lithium-ion battery blind flange, and lithium-ion cell or battery therewith
CN201084762Y (en) * 2007-09-27 2008-07-09 深圳市比克电池有限公司 Battery cover plate
CN101931060A (en) * 2009-06-26 2010-12-29 比亚迪股份有限公司 Metal laminate plate, preparation method thereof and battery using metal laminate plate

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105070949A (en) * 2015-08-14 2015-11-18 江苏绿伟锂能有限公司 Cylindrical lithium-ion battery
CN107017361A (en) * 2017-05-24 2017-08-04 深圳市长盈精密技术股份有限公司 Cover plate of power battery and its electrokinetic cell

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Application publication date: 20111005