CN101877420A - Battery and manufacturing method thereof - Google Patents

Battery and manufacturing method thereof Download PDF

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Publication number
CN101877420A
CN101877420A CN2009101070161A CN200910107016A CN101877420A CN 101877420 A CN101877420 A CN 101877420A CN 2009101070161 A CN2009101070161 A CN 2009101070161A CN 200910107016 A CN200910107016 A CN 200910107016A CN 101877420 A CN101877420 A CN 101877420A
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Prior art keywords
cavity
battery
periphery
composite plate
substrate
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CN2009101070161A
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Chinese (zh)
Inventor
王伟强
王春光
任灿
陈保同
刘铭
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Shenzhen Bak Battery Co Ltd
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Shenzhen Bak Battery Co Ltd
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Priority to CN2009101070161A priority Critical patent/CN101877420A/en
Priority to PCT/CN2010/072102 priority patent/WO2010124591A1/en
Publication of CN101877420A publication Critical patent/CN101877420A/en
Pending legal-status Critical Current

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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
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/04—Construction or manufacture in general
    • H01M10/0436—Small-sized flat cells or batteries for portable equipment
    • 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
    • H01M50/116—Primary casings; Jackets or wrappings characterised by the material
    • H01M50/121—Organic material
    • 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
    • H01M50/116—Primary casings; Jackets or wrappings characterised by the material
    • H01M50/117—Inorganic material
    • H01M50/119—Metals
    • 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
    • H01M50/116—Primary casings; Jackets or wrappings characterised by the material
    • H01M50/124—Primary casings; Jackets or wrappings characterised by the material having a layered structure
    • H01M50/126—Primary casings; Jackets or wrappings characterised by the material having a layered structure comprising three or more layers
    • H01M50/129—Primary casings; Jackets or wrappings characterised by the material having a layered structure comprising three or more layers with two or more layers of only organic material
    • 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
    • H01M50/131—Primary casings; Jackets or wrappings characterised by physical properties, e.g. gas permeability, size or heat resistance
    • H01M50/136—Flexibility or foldability
    • 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
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/543—Terminals
    • H01M50/547—Terminals characterised by the disposition of the terminals on the cells
    • H01M50/55—Terminals characterised by the disposition of the terminals on the cells on the same side of the cell
    • 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
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/543—Terminals
    • H01M50/552—Terminals characterised by their shape
    • H01M50/553—Terminals adapted for prismatic, pouch or rectangular cells
    • H01M50/557—Plate-shaped terminals
    • 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
    • H01M50/116—Primary casings; Jackets or wrappings characterised by the material
    • H01M50/124—Primary casings; Jackets or wrappings characterised by the material having a layered structure
    • 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
    • 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
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50—Manufacturing 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)
  • Inorganic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Sealing Battery Cases Or Jackets (AREA)
  • Gas Exhaust Devices For Batteries (AREA)
  • Secondary Cells (AREA)

Abstract

The invention discloses a battery, comprising a shell and a battery cell which is sealed in the shell and is provided with an anode end and a cathode end, wherein the shell comprises a substrate and a composite plate; the substrate and the composite plate have C-shaped sections and opposite openings; the first periphery of the substrate is connected with the second periphery of the composite plate to form a closed cavity; and the battery cell is positioned in the closed cavity. The invention also discloses a manufacturing method of the battery. By using the metal substrate as one part of the shell, the battery has the high explosion-proof safety performance of soft package batteries and simultaneously improves the mechanical strength of the shell so that the shell of the battery is not easily punctured, thus greatly improving the mechanical safety of the battery during use and manufacture, and the substrate and the composite plate are processed to respectively form a third cavity and a four cavity to jointly form a first cavity containing the battery cell, thus ensuring the drawing force during processing to be equally shared by the substrate and the composite plate and further improving the strength of the shell.

Description

A kind of Battery And Its Manufacturing Methods
Technical field
The present invention relates to flexible-packed battery, also relate to the manufacture method of flexible-packed battery.
Background technology
In lithium ion battery, except both positive and negative polarity, electrolyte and diaphragm paper, also be unusual important components as the housing of storage lithium ion battery each reactive component.As effective parts, housing is except providing the function of storage, the function that can provide electrode to draw for lithium ion battery also, and the safety to lithium ion battery provides certain help simultaneously.
At present, the material of battery container use mainly contains: stainless steel, nickel plating steel, aluminium alloy and aluminum plastic film etc.Aluminum plastic film has the soft characteristics of matter, is again flexible-packed battery so adopt aluminum plastic film as the battery of housing, because of it enjoys attention having superior fail safe aspect the blast protection.Aluminum plastic film claims aluminum-plastic composite membrane again, flexible-packed battery prepared therefrom, be through cutting a certain size aluminum-plastic composite membrane, doubling aluminum-plastic composite membrane, the edge of opening of aluminum-plastic composite membrane carried out high temperature is compound to be made battery utmost point group be sealed in steps such as inside to finish manufacturing.Aluminum-plastic composite membrane is generally to adopt PP and aluminium foil through the MULTILAYER COMPOSITE manufacturing, and its mechanical strength is lower, causes scrapping or scratch causes potential safety hazard making, be easier in the use to be pierced through by sharp-pointed material.In order to solve the above-mentioned problem that is pierced easily, install metal or plastic casing additional at flexible-packed battery usually and improve its anti-performance that pierces through.
Summary of the invention
The technical problem to be solved in the present invention is to overcome the deficiencies in the prior art, and a kind of flexible-packed battery with higher mechanical strength is provided.
Another technical problem that the present invention will solve provides a kind of processing method of above-mentioned battery.
Technical problem of the present invention is solved by the following technical programs:
A kind of battery, comprise housing and be sealed in its interior, as to have anodal exit and negative pole exit battery unit, described housing comprises substrate, composite plate, the cross section of described substrate and composite plate is that C type and opening are relative, first periphery of described substrate and second periphery of described composite plate are connected to form closed cavity, and described battery unit is arranged in described closed cavity.
Above-mentioned composite plate comprises having the layer structure composite plate of one deck metallic plate at least, and described substrate comprises metallic plate.
Aforesaid substrate is connected by hot melt with described composite plate.
Above-mentioned composite plate has the hot melt layer that is arranged on the metallic plate.
Aforesaid substrate is connected by described hot melt layer hot melt with above-mentioned composite plate.
Above-mentioned hot melt layer comprises polypropylene or polypropylene fibre.
Above-mentioned anodal exit and described negative pole exit are drawn from the junction of described substrate, described composite plate.
Above-mentioned anodal exit and negative pole exit are provided with hot melt layer.
Above-mentioned composite plate comprises aluminum-plastic composite membrane.
Aforesaid substrate comprises any one in aluminium sheet, steel plate, aluminium foil or the Copper Foil.
Above-mentioned battery comprises lithium ion battery.
A kind of cell manufacturing method comprises the steps:
A, preparation have the battery unit of anodal exit, negative pole exit, cut the substrate with thin-slab structure of certain size and have the layer structure composite plate of thin-slab structure;
B, difference stamping substrate and layer structure composite plate, make that the cross section of described substrate and layer structure composite plate is the C type, and make described substrate form first periphery and the 3rd cavity, layered composite sheet structure form second periphery and the 4th cavity, common first cavity that holds battery unit that forms of described the 3rd cavity and the 4th cavity;
C, battery unit is inserted first cavity, make anodal exit, negative pole exit stretch out outside first periphery and second periphery;
D, first periphery is connected with second periphery, makes that anodal exit and negative pole exit are fixed between first periphery and second periphery, battery unit is encapsulated in first inside cavity.
Above-mentioned steps D also be included in first periphery and the second periphery junction form reservoir channel, with electrolyte by described reservoir channel inject described first cavity, with the step of reservoir channel sealing.
Above-mentioned steps B comprises that also punching press layer structure composite material forms the step of second cavity; Described step D also is included in first periphery and the second periphery junction forms the reservoir channel and second reservoir channel, wherein reservoir channel is communicated with first cavity and second cavity, second reservoir channel is communicated with second cavity with extraneous, electrolyte is injected first cavity by second reservoir channel, second cavity, reservoir channel, then the step that reservoir channel second reservoir channel is sealed.
Above-mentioned steps D also comprises battery is charged, and makes the gas in first cavity drain into second cavity by reservoir channel, and the sealing reservoir channel also cuts down the process of second cavity.
Above-mentioned cell manufacturing method also comprises the step that pierces through second cavity cut second cavity in described step D before.
The present invention's beneficial effect compared with prior art is:
(1) by using the part of metal substrate as housing, both inherited the security performance of the high explosion-proof of flexible-packed battery, and also improved the mechanical strength of housing simultaneously, battery container is not easy to puncture, improved greatly battery use and make in mechanical safety; Substrate and composite plate are processed, formed the 3rd cavity and the 4th cavity respectively, and common first cavity that holds battery unit that forms, make that the stretching in the processing all is spread out on the fundamental sum composite plate, further improved the intensity of housing;
(2) the relative composite plate manufacturing cost of substrate is extremely low, can reduce the production cost of battery;
(3) sealing means of reserving reservoir channel more with once fully the mode of sealed cell unit have better operability, improve production efficiency greatly;
(4) manufacture method that adopts second cavity to discharge cavity waste gas can reduce the probability of cell expansion drum shell greatly;
(5) mode of puncture back waste discharge gas on second cavity more helps waste gas and gets rid of.
Description of drawings
Fig. 1 is a specific embodiment of the invention battery structure schematic diagram;
Fig. 2 is a C place enlarged drawing among Fig. 1;
Fig. 3 is battery processing method embodiment 1 step 101 schematic diagram of the present invention;
Fig. 4 is an A place enlarged drawing among Fig. 3;
Fig. 5 is a B place enlarged drawing among Fig. 3;
Fig. 6 is battery processing method embodiment 1 step 102 schematic diagram of the present invention;
Fig. 7 is battery processing method embodiment 1 step 103 schematic diagram of the present invention.
Embodiment
A kind of battery, its a kind of execution mode is a kind of lithium ion battery, as shown in Figure 1 and Figure 2, comprises housing and is sealed in its interior, as to have anodal exit 4 and negative pole exit (be arrangeding in parallel with anodal exit 4, not shown) battery unit 3; Described housing comprises substrate 1, by layer of metal layer 11 be layered in the layer structure composite plate 2 that the hot melt layer 12 of metal level 11 positive and negatives constitutes; Anodal exit 4 and negative pole exit are provided with hot melt layer 10 on it; The cross section of substrate 1 is the C type, comprises first periphery 61 and the 3rd cavity 51 with opening; The cross section of layer structure composite plate 2 is the C type, comprise second periphery 62 and the 4th cavity 52 with opening, the opening of the 4th cavity 52 is relative with the opening of the 3rd cavity 51, and first periphery 61 and 62 fusions of second periphery connect as one and make the 3rd cavity 51 and the 4th cavity 52 form first cavitys 5 jointly; Battery unit 3 is arranged in first cavity 5, anodal exit 4 on the battery unit 3 and negative pole exit stretch out outside the junction of first periphery 61 and second periphery 62, are sandwiched between layer structure composite plate 2 and the substrate 1, and anodal exit 4 and negative pole exit also fusion connect, are fixed between substrate 1 and the layer structure composite plate 2.
Preferred mode, substrate 1 adopts aluminium sheet, steel plate, aluminium foil or Copper Foil, more excellent mode adopts aluminium flake or stainless steel, more excellent mode adopts A3003 or A3005 annealing O attitude aluminum alloy sheet, thickness can be arranged between 0.18～0.35mm, preferably select for use between 0.22～0.3mm, it is that A3005, thickness are the aluminum alloy sheet of 0.25mm that this example adopts model; It is the layered composite of aluminium foil that layer structure composite plate 2 adopts two-layer PP, intermediate course, and more excellent mode adopts the sheet materials such as aluminum-plastic composite membrane of existing flexible-packed battery.
As shown in Table 1 and Table 2, table 1 is the puncture result of the test of aluminum-plastic composite membrane, and table 2 is the hot strength test result of aluminum-plastic composite membrane, this shows that the mechanical strength of aluminum-plastic composite membrane is lower.
Figure B2009101070161D0000041
Table 1
Figure B2009101070161D0000051
Table 2
This example adopts aluminium flake and aluminum-plastic composite membrane, and connecting portion adopts aluminium flake and the compound mode of aluminum-plastic composite membrane, can improve the mechanical strength of housing, has also kept the safety anti-explosive performance of aluminum-plastic composite membrane simultaneously.Table 3 is an aluminium flake hot strength test result.
Figure B2009101070161D0000052
Table 3
Cell manufacturing method of the present invention, its a kind of execution mode for the lithium ion battery manufacture method, comprises the steps:
Embodiment 1:
Step 101, as Fig. 3, Fig. 4 and shown in Figure 5, preparation has anodal exit 4, the negative pole exit (is provided with anodal exit is parallel, not shown) battery unit 3, the model with thin-slab structure that cuts certain size is that the aluminium sheet of A3003 is as substrate 1 with have the aluminum-plastic composite membrane (also claiming aluminum-plastic composite membrane) of the layer structure composite plate of thin-slab structure as layer structure composite plate 2;
Step 102, as Fig. 6, shown in Figure 7, stamping substrate 1 forms first periphery 61 and the 3rd cavity 51, punching press layer structure composite plate 2 forms second periphery 62 and the 4th cavity 52, the opening of the 3rd cavity 51 is relative with the opening of the 4th cavity 52, common formation can be held first cavity 5 of battery unit 3, the composite plate of punching press layer structure again 2 makes to form second cavity 7;
Step 103, is as shown in Figure 7 inserted cavity 5 with battery unit 3, makes anodal exit 4, negative pole exit stretch out outside first periphery 61 and second periphery 62; First periphery 61 is connected with second periphery, 62 hot melts, make that anodal exit 4 and negative pole exit are fixed between layer structure composite plate 2 and the substrate 1, battery unit 3 is encapsulated in first cavity, 5 inside, simultaneously, substrate 1 forms the reservoir channel 8 and second reservoir channel 9 with layer structure composite plate 2 junctions, wherein reservoir channel 8 connection first cavitys 5 and second cavity, 7, the second reservoir channels 9 are in communication with the outside second cavity 7; Because of there being the PP material in the aluminum plastic film, the melt temperature of PP material is about 150 ℃, considers the machine fluctuation, and the temperature of the compound connection of hot melt is 90 ℃, and composite pressure is 3MPa;
Step 104, electrolyte inject first cavity 5 by second reservoir channel 9, second cavity 7, reservoir channel 8, then with 9 sealings of second reservoir channel;
Step 105, battery is charged;
Step 106, second cavity 7 is pierced through, the waste gas that charging produces in first cavity 5 are got rid of through reservoir channel 8, second cavity 7;
Step 107, seal reservoir channel 7 at last, and second cavity 7 is cut the battery that makes as shown in Figure 1.
The battery that this example processes connects peel strength test through housing, and test result is as shown in table 4.
Test piece number (Test pc No.) Maximum, force (N) Maximum distortion (mm) Test duration (S)
??401 ?45.755 ??14.6403 ?18.0
??402 ?45.315 ??7.3518 ?9.2
??403 ?41.096 ??26.1083 ?31.6
Table 4
Embodiment 2: this example is substantially the same manner as Example 1, and difference is that the combined temp in the step 103 is 120 ℃.
The battery that processes connects peel strength test through housing, and its test result is as shown in table 5.
Test piece number (Test pc No.) Maximum, force (N) Maximum distortion (mm) Test duration (S)
??501 ?52.916 ??27.6622 ?33.6
??502 ?47.868 ??24.8259 ?30.2
??503 ?63.495 ??6.4819 ?8.2
??504 ?54.318 ??23.7385 ?28.8
Table 5
Embodiment 3: this example is substantially the same manner as Example 1, and difference is that the combined temp in the step 103 is 140 ℃.The battery that processes connects peel strength test through housing, and its test result is as shown in table 6.
Test piece number (Test pc No.) Maximum, force (N) Maximum distortion (mm) Test duration (S)
??601 ?63.578 ??4.0898 ?5.4
??602 ?63.505 ??15.5629 ?19.0
??603 ?58.651 ??11.6142 ?14.4
Table 6
Embodiment 4: this example is substantially the same manner as Example 1, and difference is that the combined temp in the step 103 is 140 ℃, and composite pressure is 1MPa, and the battery that processes connects peel strength test through housing, and its test result is as shown in table 7.
Test piece number (Test pc No.) Maximum, force (N) Maximum distortion (mm) Test duration (S)
??701 ?26.94 ??9.1561 ?11.4
??702 ?26.973 ??11.4692 ?14.2
??703 ?25.363 ??11.1305 ?13.8
Table 7
Embodiment 5: this example is substantially the same manner as Example 3, and difference is that the combined temp in the step 103 is 120 ℃, and composite pressure is 5MPa, and the battery that processes connects peel strength test through housing, and its test result is as shown in table 8.
Test piece number (Test pc No.) Maximum, force (N) Maximum distortion (mm) Test duration (S)
??801 ?81.729 ??10.9499 ?13.6
Test piece number (Test pc No.) Maximum, force (N) Maximum distortion (mm) Test duration (S)
??802 ?89.98 ??9.9904 ?12.4
??803 ?66.191 ??7.9739 ?10.0
Table 8
Comparative Examples: the peel strength test result of conventional compound aluminum-plastic composite membrane, as shown in table 9.
Test piece number (Test pc No.) Maximum, force (N) Maximum distortion (mm) Test duration (S)
??901 ?36.779 ??12.8505 ?15.8
??902 ?37.557 ??7.5495 ?9.4
??903 ?34.878 ??17.3963 ?21.2
Table 9
By the peel strength contrast test as can be seen, pressure is under 3MPa, 120 ℃ hot combined strength bination is bigger, when temperature is 120 ℃, the pressure of 5MPa is bigger, but is limited to the long-term use of equipment, preferably uses the pressure of 3MPa, combined strength bination with aluminum-plastic composite membrane contrasts as can be seen, and the material combined strength bination among employing the present invention can satisfy the needs of ordinary production.
Recombination site of the present invention is carried out scanning electron microscope test (SEM) test, and it is compound comparatively tight as can be seen from composite bed, interpenetrates between aluminium flake and the aluminum-plastic composite membrane, and composite effect is better.
The another kind of execution mode of cell manufacturing method of the present invention is used for Ni-MH battery processing, comprises the steps:
Embodiment 6
Step 601, preparation have the battery unit of anodal exit 4, negative pole exit, and the model with thin-slab structure that cuts certain size is that the aluminium sheet of A3005 is as substrate 1 with have the aluminum-plastic composite membrane (also claiming aluminum plastic film) of thin-slab structure as layer structure composite plate 2;
Step 602, stamping substrate 1 form first periphery 61 and the 3rd cavity 51, punching press layer structure composite plate 2 forms second periphery 62 and the 4th cavity 52, the opening of the 3rd cavity 51 is relative with the opening of the 4th cavity 52, and common formation can be held first cavity 5 of battery unit 3;
Step 603, battery unit 3 is inserted first cavity 5, make anodal exit 4, negative pole exit stretch out outside first periphery 61 and second periphery 62;
Step 604, first periphery 61 is connected with second periphery, 62 hot melts, makes that anodal exit 4 and negative pole exit are fixed between layer structure composite plate 2 and the substrate 1, battery unit 3 is sealed in first cavity, 5 inside, form completed cell.
Battery unit 3 has been flooded by electrolyte in this example, so battery unit can disposablely be sealed in first cavity 5 fully.
Above content be in conjunction with concrete preferred implementation to further describing that the present invention did, can not assert that concrete enforcement of the present invention is confined to these explanations.For the general technical staff of the technical field of the invention, without departing from the inventive concept of the premise, can also make some simple deduction or replace, all should be considered as belonging to protection scope of the present invention.

Claims (10)

1. battery, comprise housing and be sealed in its interior, as to have anodal exit and negative pole exit battery unit, described housing comprises substrate, composite plate, it is characterized in that, the cross section of described substrate and composite plate is that C type and opening are relative, first periphery of described substrate and second periphery of described composite plate are connected to form closed cavity, and described battery unit is arranged in described closed cavity.
2. battery according to claim 1 is characterized in that, described composite plate comprises having the layer structure composite plate of one deck metallic plate at least, and described substrate comprises metallic plate.
3. battery according to claim 2 is characterized in that, described substrate is connected by hot melt with described composite plate.
4. according to any described battery of claim 2 to 3, it is characterized in that described composite plate comprises aluminum-plastic composite membrane.
5. according to any described battery of claim 2 to 3, it is characterized in that described substrate comprises any one in aluminium sheet, steel plate, aluminium foil or the Copper Foil.
6. according to any described battery of claim 1 to 3, it is characterized in that described battery comprises lithium ion battery.
7. a cell manufacturing method is characterized in that, comprises the steps:
A, preparation have the battery unit of anodal exit, negative pole exit, cut the substrate with thin-slab structure of certain size and have the layer structure composite plate of thin-slab structure;
B, difference stamping substrate and layer structure composite plate, make that the cross section of described substrate and layer structure composite plate is the C type, and make described substrate form first periphery and the 3rd cavity, layered composite sheet structure form second periphery and the 4th cavity, common first cavity that holds battery unit that forms of described the 3rd cavity and the 4th cavity;
C, battery unit is inserted first cavity, make anodal exit, negative pole exit stretch out outside first periphery and second periphery;
D, first periphery is connected with second periphery, makes that anodal exit and negative pole exit are fixed between first periphery and second periphery, battery unit is encapsulated in first inside cavity.
8. cell manufacturing method according to claim 7, it is characterized in that, described step D also be included in first periphery and the second periphery junction form reservoir channel, with electrolyte by described reservoir channel inject described first cavity, with the step of reservoir channel sealing.
9. cell manufacturing method according to claim 7 is characterized in that, described step B comprises that also punching press layer structure composite material forms the step of second cavity; Described step D also is included in first periphery and the second periphery junction forms the reservoir channel and second reservoir channel, wherein reservoir channel is communicated with first cavity and second cavity, second reservoir channel is communicated with second cavity with extraneous, electrolyte is injected first cavity by second reservoir channel, second cavity, reservoir channel, then the step that reservoir channel second reservoir channel is sealed.
10. cell manufacturing method according to claim 9 is characterized in that, described step D also comprises battery is charged, and makes the gas in first cavity drain into second cavity by reservoir channel, and the sealing reservoir channel also cuts down the process of second cavity.
CN2009101070161A 2009-04-29 2009-04-29 Battery and manufacturing method thereof Pending CN101877420A (en)

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CN103447298A (en) * 2012-05-07 2013-12-18 伯恩哈德·施图斯 Method for producing a metallic laminated multi-layer film, in particular a laminated multi-layer film in the form of a tape

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CN113410307B (en) * 2021-04-16 2022-10-04 深圳真茂佳半导体有限公司 Field effect transistor structure, manufacturing method thereof and chip device

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