CN109449318A - A kind of cylindrical battery configuration and preparation method of non-metal shell - Google Patents

A kind of cylindrical battery configuration and preparation method of non-metal shell Download PDF

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Publication number
CN109449318A
CN109449318A CN201811197442.4A CN201811197442A CN109449318A CN 109449318 A CN109449318 A CN 109449318A CN 201811197442 A CN201811197442 A CN 201811197442A CN 109449318 A CN109449318 A CN 109449318A
Authority
CN
China
Prior art keywords
cylindrical
shell
upper cover
lower cover
battery configuration
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
CN201811197442.4A
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Chinese (zh)
Inventor
吴月
薄晋科
王义源
高强
宫颂
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.)
Dalian CBAK Power Battery Co Ltd
Original Assignee
Dalian CBAK Power Battery 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 Dalian CBAK Power Battery Co Ltd filed Critical Dalian CBAK Power Battery Co Ltd
Priority to CN201811197442.4A priority Critical patent/CN109449318A/en
Publication of CN109449318A publication Critical patent/CN109449318A/en
Pending legal-status Critical Current

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Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/10Primary casings; Jackets or wrappings
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/05Accumulators with non-aqueous electrolyte
    • H01M10/052Li-accumulators
    • H01M10/0525Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/05Accumulators with non-aqueous electrolyte
    • H01M10/058Construction or manufacture
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/10Primary casings; Jackets or wrappings
    • H01M50/116Primary casings; Jackets or wrappings characterised by the material
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/10Primary casings; Jackets or wrappings
    • H01M50/147Lids or covers
    • 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
    • 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
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50Manufacturing or production processes characterised by the final manufactured product

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Sealing Battery Cases Or Jackets (AREA)
  • Connection Of Batteries Or Terminals (AREA)
  • Battery Mounting, Suspending (AREA)

Abstract

The present invention proposes a kind of cylindrical battery configuration of non-metal shell, and the cylindrical shell including upper cover, lower cover and non-metallic material, upper cover and lower cover are packaged in the both ends of cylindrical shell.The present invention also proposes the preparation method of the cylindrical battery configuration of the non-metal shell.Cylindrical battery configuration proposed by the present invention replaces original metal material using non-metallic material, and cost is reduced, secondly because nonmetallic the light-weight of itself, intensity are high, designability is good, meets the requirement of battery case.Nonmetallic insulation performance is avoided and is contacted using the tab or baffle of battery core caused by metal shell with shell, so that the battery short circuit caused, has given the design space that battery core is bigger.

Description

A kind of cylindrical battery configuration and preparation method of non-metal shell
Technical field
The invention belongs to field of batteries, and in particular to a kind of structure and preparation method of cylindrical battery.
Background technique
Lithium ion battery has energy density height, high conversion efficiency, has extended cycle life, memory-less effect, prolongs without charge and discharge When, self-discharge rate is low, operating temperature range is wide and advantages of environment protection, thus become electric energy a more satisfactory load Body is most one of the contenders in energy storage market, and following instead of Main way of the petroleum as car engine device.
The form of lithium battery is still based on cylinder, rectangular, Soft Roll at present.Wherein cylindrical lithium battery is with a long history, The popularity rate in market is high, and the winding process used is more mature, high degree of automation, product with stable quality, and cost is relatively It is low.Cylindrical lithium battery generally uses two kinds of materials of aluminum hull and steel shell to carry out cell package.Aluminum hull has weight ratio energy compared with steel shell Amount is high, the good advantage of safety, and in present cylindrical lithium battery production, most manufacturers are all using steel as battery case Material, because of the physical stability of steel material, compressive resistance is significantly larger than aluminum hull material, using the design structure of each producer After optimization, safety device is had been placed in inside battery, and safety, which has, to be greatly improved.But for general cylinder For steel shell battery, cap and shell are different the two poles of the earth, in battery storage and transportation or operational process, make because the situations such as squeezing, colliding Tab or foil contact battery shell wall, will result in battery short circuit.So existing battery case still has safety risks.
Summary of the invention
In view of problem above existing for this field, an object of the present invention is the cylinder electricity for proposing a kind of non-metal shell Pool structure;It proposes a kind of novel cylindrical battery configuration, replaces steel, aluminum metallic material to seal battery using non-metallic material Dress.
Another object of the present invention is to provide the preparation method of the cylindrical battery configuration of the non-metal shell.
Realize above-mentioned purpose technical solution of the present invention are as follows:
A kind of cylindrical battery configuration of non-metal shell, the cylindrical shell including upper cover, lower cover and non-metallic material, on Lid and lower cover are packaged in the both ends of cylindrical shell;
The non-metallic material for constituting the cylindrical shell is glass or glass reinforced plastic, and the wall thickness of the cylindrical shell is 0.2-3mm。
Wherein, the pressure rating of the cylindrical shell is 0.2MPa < PN < 0.6MPa.
A preferred technical solution of the present invention be constitute the cylindrical shell non-metallic material be glass, it is described Anti-corrosion coating is coated on the inner wall of cylindrical shell, the anti-corrosion coating is aluminium alloy covered or is nickel coating.
Further, it is equipped with current interruptive device (CID) on the upper lid, the current interruptive device includes letting out Tabletting and upper sheet metal, lower sheet metal, for pressure release piece between upper sheet metal and lower sheet metal, the middle part of the pressure release piece is recessed It falls into, minimum point welds together with lower sheet metal, and lower sheet metal is opposite with inside battery (i.e. upper sheet metal is outermost);It is described Current interruptive device connect with upper cover by four solder joints.
Wherein, respectively there is one section of reduced diameter at the both ends of the cylindrical shell and the groove that constitutes, the end of cylindrical shell Mouth bore is less than the outer diameter of the cylindrical shell, and the part between groove and port is made to form flange;The upper cover and lower cover It is packaged on the flange with the mode of gland.
Or, the both ends of the cylindrical shell respectively have one section to be provided with external screw thread, it is provided in the upper cover and lower cover Internal screw thread, upper cover and lower cover are tightened by screw thread.
Cylindrical battery configuration of the invention can be prepared by the following method:
A kind of preparation method of the cylindrical battery configuration of non-metal shell, the cylindrical battery configuration include upper cover, lower cover With the cylindrical shell of non-metallic material,
The cylindrical shell forms flange at both ends by integrally formed mode;With capping machine by the upper cover and under The mode of lid gland is packaged on the flange.
Or: the cylindrical battery configuration includes the cylindrical shell of upper cover, lower cover and non-metallic material, described cylindrical outer The both ends of shell respectively have one section to be provided with external screw thread,
Screw thread is processed in the upper cover and lower cover with idler wheel, upper cover and lower cover are tightened by screw thread, are made outside cylinder The both ends compact package of shell.
By above-mentioned novel cylindrical battery configuration it is found that the present invention replaces original metal material using non-metallic material, at Originally it is reduced, secondly because nonmetallic the light-weight of itself, intensity are high, designability is good, the use for meeting battery case is wanted It asks and (for the corrosion resistance for improving glass, can also plate one layer of anti-corrosion coating in glass inner wall).Nonmetallic insulation performance, avoids It is contacted using the tab or baffle of battery core caused by metal shell with shell, so that the battery short circuit caused, has given battery core more Big design space.
Glass reinforced plastic is the mixture of glass fibre and resin, from a wealth of sources, and pressure resistance, corrosion resisting property are good.The present invention selects Glass or glass-reinforced plastic material, machinability is strong, and light weight, intensity are high, and excellent corrosion resistance is cheap, is easily recycled, and can be used as The alternative materials of battery case steel, aluminium.Due to the insulating properties of glass or glass reinforced plastic itself, tab or foil can completely avoid It is rebuffed and causes the short circuit of battery, improve the design space of battery battery core.This non-metal shell uses the methods of rolling or gland Nut cap sealing up and down is carried out, equipment is simple, and CT Cycle Time shortens, and nut cap is equipped with exhaust explosion-proof device, improves the peace of battery Full performance.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of 1 cylindrical cell external case and upper cover, lower cover of the embodiment of the present invention.
Fig. 2 is the outer side view of the upper cover of the embodiment of the present invention 1.
Fig. 3 is the inner side view of the upper cover of the embodiment of the present invention 1.
Fig. 4 is the outer side view of the lower cover of the embodiment of the present invention 1.
Fig. 5 is the inner side view of the lower cover of the embodiment of the present invention 1.
Fig. 6 is the structural schematic diagram of 2 cylindrical cell external case and upper cover, lower cover of the embodiment of the present invention.
Fig. 7 is the outer side view of the upper cover of the embodiment of the present invention 2.
Fig. 8 is the inner side view of the upper cover of the embodiment of the present invention 2.
Fig. 9 is the outer side view of the lower cover of the embodiment of the present invention 2.
Figure 10 is the inner side view of the lower cover of the embodiment of the present invention 2.
In figure, in figure, 1, cylindrical shell, 101, flange, 102, external screw thread;2, lower cover;3, upper cover;301, upper metal Piece;302, sheet metal solder joint, 303, lower sheet metal, 304, pressure release piece solder joint.
Specific embodiment
Illustrate the present invention below by most preferred embodiment.Those skilled in the art institute it should be understood that, embodiment is only used to It illustrates rather than for limiting the scope of the invention.
In embodiment, unless otherwise instructed, means used are the means of this field routine.
Unless otherwise instructed, material is commercially available in embodiment.
Embodiment 1
Referring to Fig. 1, a kind of cylindrical battery configuration of glass shell, the cylinder including upper cover 3, lower cover 2 and glass material Shell 1, upper cover and lower cover are packaged in the both ends of cylindrical shell.
Wherein, the wall thickness of the cylindrical shell is 0.8mm.The pressure rating of this cylindrical shell is PN 0.25MPa. In specific the present embodiment, the upper cover and lower cover are aluminum alloy material.The material for constituting the cylindrical shell is silicate Glass.
Referring to figs. 2 and 3, current interruptive device (CID device), the current interruptive device are provided in the upper cover 3 Including upper sheet metal 301, lower sheet metal 303, upper and lower sheet metal is sandwiched between spill pressure release piece, and minimum point and lower sheet metal weld It is connected into pressure release piece solder joint 304, the upper and lower sheet metal, pressure release piece pass through four symmetrical 302 (four solder joints of sheet metal solder joint Disposed at equal distance is on the circumference of sheet metal) it is connected on upper lid.Lower sheet metal 303 is opposite with inside battery.
In the present embodiment, respectively there is one section of reduced diameter at the both ends of the cylindrical shell and constitutes groove, cylindrical shell Port bore be less than the outer diameter of the cylindrical shell, so that part between groove and port is formed flange 101;The upper cover It is packaged on the flange with the mode of lower cover gland (referring to fig. 2 to Fig. 5).
The present embodiment furthermore provides the preparation method of this cylindrical battery configuration:
The cylindrical shell forms flange at both ends by integrally formed mode;With capping machine by the upper cover and under The mode of lid gland is packaged on the flange.
Embodiment 2
Referring to Fig. 6, a kind of cylindrical battery configuration of glass shell, the cylinder including upper cover 3, lower cover 2 and glass material Shell 1, upper cover and lower cover are packaged in the both ends of cylindrical shell.The material for constituting the cylindrical shell is silicate glass. Nickel coating is coated on the inner wall of the glass cylinder shape shell.
In the present embodiment, the wall thickness of the cylindrical shell is 0.5mm.The pressure rating of this cylindrical shell is PN 0.5MPa.The upper cover and lower cover are aluminum alloy material.
Referring to figs. 7 and 8, current interruptive device (CID device), the current interruptive device are provided in the upper cover 3 Including upper sheet metal 301, lower sheet metal 303, upper and lower sheet metal is sandwiched between spill pressure release piece, and minimum point and lower sheet metal weld It is connected into pressure release piece solder joint 304, the upper and lower sheet metal, pressure release piece pass through four symmetrical 302 (four solder joints of sheet metal solder joint Disposed at equal distance is on the circumference of upper sheet metal) it is connected to upper cover 3.Lower sheet metal 303 is opposite with inside battery.
Referring to Fig. 7 to Figure 10, in the present embodiment, the both ends of the cylindrical shell respectively have one section to be provided with external screw thread 102, Internal screw thread is provided in the upper cover and lower cover, upper cover and lower cover are tightened by screw thread.
The preparation method of the present embodiment cylindrical battery configuration is further provided for herein:
The both ends of the cylindrical shell respectively have one section by being integrally formed processing external threads, with idler wheel in the upper cover Internal screw thread is processed on lower lid, upper cover and lower cover are tightened by screw thread, and the both ends of cylindrical shell are encapsulated.
Embodiment 3
In this implementation, the wall thickness of the cylindrical shell is 0.6mm.The pressure rating of this cylindrical shell is PN 0.25MPa。
The non-metallic material for constituting the cylindrical shell is silicate glass.In the inner wall of the cylindrical non-metal shell On be coated with anti-corrosion coating, which is aluminium alloy covered.
Other settings and embodiment 1 are identical.
Embodiment 4
A kind of cylindrical battery configuration of glass fibre reinforced plastics casing, the cylindrical shell 1 including upper cover 3, lower cover 2 and glass material, Upper cover and lower cover are packaged in the both ends of cylindrical shell.
In the present embodiment, the wall thickness of the cylindrical shell is 0.5mm.The pressure rating of this cylindrical shell is PN 0.6MPa.It does not need to apply anti-corrosion coating in the inner wall of glass fibre reinforced plastics casing.
Other are arranged with embodiment 1.
Embodiment 5
A kind of cylindrical battery configuration of glass fibre reinforced plastics casing, the cylindrical shell 1 including upper cover 3, lower cover 2 and glass material, Upper cover and lower cover are packaged in the both ends of cylindrical shell.
In the present embodiment, the wall thickness of the cylindrical shell is 0.5mm.The pressure rating of this cylindrical shell is PN 0.6MPa.It does not need to apply anti-corrosion coating in the inner wall of glass fibre reinforced plastics casing.
Other are arranged with embodiment 2.
Above embodiment be only preferred embodiments of the present invention will be described, not to the scope of the present invention into Row limits, and without departing from the spirit of the design of the present invention, this field ordinary engineering and technical personnel is to technical side of the invention The all variations and modifications that case is made, should fall within the scope of protection determined by the claims of the present invention.

Claims (8)

1. a kind of cylindrical battery configuration of non-metal shell, which is characterized in that the cylinder including upper cover, lower cover and non-metallic material Shape shell, upper cover and lower cover are packaged in the both ends of cylindrical shell;
The non-metallic material for constituting the cylindrical shell is glass or glass reinforced plastic, and the wall thickness of the cylindrical shell is 0.2- 3mm。
2. the cylindrical battery configuration of non-metal shell according to claim 1, which is characterized in that the cylindrical shell Pressure rating is 0.2MPa < PN < 0.6MPa.
3. the cylindrical battery configuration of non-metal shell according to claim 1, which is characterized in that constitute the cylinder The non-metallic material of shell is glass, and anti-corrosion coating is coated on the inner wall of the cylindrical shell, and the anti-corrosion coating is aluminium conjunction Gold plating is nickel coating.
4. the cylindrical battery configuration of non-metal shell according to claim 1, which is characterized in that in the upper and lower cover It is equipped with current interruptive device, the current interruptive device includes that pressure release piece and upper sheet metal, lower sheet metal, pressure release piece are located at Between upper sheet metal and lower sheet metal, the depression in centre of the pressure release piece, minimum point welds together with lower sheet metal, lower gold Category piece is opposite with inside battery, and the current interruptive device is connect by four solder joints with upper cover.
5. the cylindrical battery configuration of non-metal shell according to any one of claims 1 to 4, which is characterized in that the circle Respectively there is one section of reduced diameter at the both ends of cylindrical outer cover and the groove that constitutes, and the port bore of cylindrical shell is less than the cylinder The outer diameter of shell makes the part between groove and port form flange;The mode of upper cover and lower cover gland is packaged in institute It states on flange.
6. the cylindrical battery configuration of non-metal shell according to any one of claims 1 to 4, which is characterized in that the circle The both ends of cylindrical outer cover respectively have one section to be provided with external screw thread, and internal screw thread, upper cover and lower cover are provided in the upper cover and lower cover It is tightened by screw thread.
7. a kind of preparation method of the cylindrical battery configuration of non-metal shell, which is characterized in that the cylindrical battery configuration includes The cylindrical shell of upper cover, lower cover and non-metallic material,
The cylindrical shell forms flange at both ends by integrally formed mode and is used the upper cover and lower cover with capping machine The mode of gland is packaged on the flange.
8. a kind of preparation method of the cylindrical battery configuration of non-metal shell, which is characterized in that the cylindrical battery configuration includes The cylindrical shell of upper cover, lower cover and non-metallic material, the both ends of the cylindrical shell respectively have one section to be provided with external screw thread,
Screw thread is processed in the upper cover and lower cover with idler wheel, upper cover and lower cover are tightened by screw thread, make cylindrical shell Both ends compact package.
CN201811197442.4A 2018-10-15 2018-10-15 A kind of cylindrical battery configuration and preparation method of non-metal shell Pending CN109449318A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201811197442.4A CN109449318A (en) 2018-10-15 2018-10-15 A kind of cylindrical battery configuration and preparation method of non-metal shell

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Application Number Priority Date Filing Date Title
CN201811197442.4A CN109449318A (en) 2018-10-15 2018-10-15 A kind of cylindrical battery configuration and preparation method of non-metal shell

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8403438D0 (en) * 1984-02-09 1984-03-14 Venture Technology Ltd Electrochemical cell
CN101241975A (en) * 2008-03-13 2008-08-13 复旦大学 A cylinder lithium ion battery
CN104979508A (en) * 2015-06-18 2015-10-14 中国电子科技集团公司第十八研究所 Nonmetallic housing for battery and manufacturing method of nonmetallic housing
CN205050946U (en) * 2015-09-25 2016-02-24 常州市高振电子有限公司 Lithium ion battery device
CN205508891U (en) * 2016-01-22 2016-08-24 深圳市沃特玛电池有限公司 Battery and battery block structure thereof
CN106252747A (en) * 2016-08-30 2016-12-21 中国西电电气股份有限公司 A kind of shell structure for liquid metal cell and preparation method thereof
CN209087915U (en) * 2018-10-15 2019-07-09 大连中比动力电池有限公司 A kind of cylindrical battery configuration of non-metal shell

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8403438D0 (en) * 1984-02-09 1984-03-14 Venture Technology Ltd Electrochemical cell
CN101241975A (en) * 2008-03-13 2008-08-13 复旦大学 A cylinder lithium ion battery
CN104979508A (en) * 2015-06-18 2015-10-14 中国电子科技集团公司第十八研究所 Nonmetallic housing for battery and manufacturing method of nonmetallic housing
CN205050946U (en) * 2015-09-25 2016-02-24 常州市高振电子有限公司 Lithium ion battery device
CN205508891U (en) * 2016-01-22 2016-08-24 深圳市沃特玛电池有限公司 Battery and battery block structure thereof
CN106252747A (en) * 2016-08-30 2016-12-21 中国西电电气股份有限公司 A kind of shell structure for liquid metal cell and preparation method thereof
CN209087915U (en) * 2018-10-15 2019-07-09 大连中比动力电池有限公司 A kind of cylindrical battery configuration of non-metal shell

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