CN100438133C - Disposable lithium-battery - Google Patents
Disposable lithium-battery Download PDFInfo
- Publication number
- CN100438133C CN100438133C CNB2006101469290A CN200610146929A CN100438133C CN 100438133 C CN100438133 C CN 100438133C CN B2006101469290 A CNB2006101469290 A CN B2006101469290A CN 200610146929 A CN200610146929 A CN 200610146929A CN 100438133 C CN100438133 C CN 100438133C
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- Prior art keywords
- injection hole
- liquid injection
- upper layer
- battery
- lithium battery
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- Y02E60/12—
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- Sealing Battery Cases Or Jackets (AREA)
- Secondary Cells (AREA)
Abstract
The invention is concerned with the one-shot lithium battery, it is: airproofs the top cover infusing hole of the battery, the top part is steel, the bottom part is the plastic nail. Because of the top cover is not impacted hardly during the encapsulation processing, it can reduce the damage of the glass insulator fixed on the top cover in order to reduce the leaking rate of the electrolyte of the one-shot lithium battery, and improve the high and low temperature capability and storage operational capability of the one-shot lithium battery.
Description
Technical field:
The present invention relates to a kind of disposable lithium-battery, be meant the hermetically-sealed construction of disposable lithium-battery liquid injection hole especially.
Background technology:
Existing disposable lithium-battery, its sealing means adopts the metal glass sealing technology, and by hydrogen arc weldering or laser welding, loam cake leaves aperture and is used for the electrolyte injection between cell cover and the box hat.After electrolyte injected, the aperture of going into loam cake with the steel nail riveting sealed.Go in the process in riveting,, cause battery leakage because the impact of external force causes glass insulator to break easily when pressing nail, simultaneously, when the sealing nail at diameter, sealing surface and in shape with the coupling of liquid injection hole when accurate inadequately, envelope nail place also easily causes leakage.
Summary of the invention:
Main purpose of the present invention is to have proposed a kind of disposable lithium-battery, the leakage problem or the leakage potential problem that can improve in the encapsulation process to be produced.Another object of the present invention is to have proposed a kind of method of making above-mentioned disposable lithium-battery.
The object of the invention can be achieved through the following technical solutions: a kind of disposable lithium-battery, comprise loam cake, loam cake has the liquid injection hole of electrolyte, and the material that wherein is used to seal described liquid injection hole has two kinds by upper and lower settings, upper layer of material is a metal, to the requirement of subsurface material is:
1, hardness is less than upper layer of material;
2, elasticity is greater than upper layer of material;
3, be inertia with respect to the electrolyte that injects;
4, under the normality be solid.
Aforesaid a kind of lithium battery, its encapsulation process is: after fluid injection is finished, use the subsurface material that is complementary with loam cake liquid injection hole diameter that liquid injection hole is carried out the encapsulation first time, require the top of subsurface material to be lower than upward capping; Carry out the sealing second time then, liquid injection hole is carried out the resistance welded sealing with metallic upper layer of material.
After adopting technique scheme, in the encapsulation process of disposable lithium-battery, do not need loam cake is carried out destroying the impact energetically of glass insulator, avoid spilling of electrolyte, thereby improve the yields in producing, prolong the useful life of disposable lithium-battery.
The subsurface material that uses can be a continuously connected fastener, as any plastics that can expect such as polyvinyl chloride (PVC), polypropylene (PP), polyethylene (PE), ABS, also can be timber, bamboo etc., also can be to compare the metal that satisfies condition than upper layer of material, use under the situation of metallic steel the subsurface material metallic aluminium as upper layer of material.The shape of subsurface material can be the shape that taper, cylindrical, spherical and other and liquid injection hole can reach intact sealing property.Other metal parts of loam cake and battery can be a metal or alloy arbitrarily such as stainless steel, carbon steel, nickel.Described upper layer of material metal can be stainless steel, carbon steel, nickel or other any metal or alloy, and its shape can be the shape of any appropriate such as sphere, spike, cylindric, sheet.The profile of described disposable lithium-battery can be arbitrary shapes such as pillar, square, coin, button.
Description of drawings
Fig. 1 is existing disposable lithium-battery encapsulation schematic diagram; Fig. 2 is the encapsulation schematic diagram of the embodiment of the invention; Below in conjunction with accompanying drawing the present invention is done further detailed description.
As shown in the figure, this disposable lithium cell, box hat 1 and loam cake 2 form hermetic seal, are fixed with collector electrode 4 by glass insulator 3 in the loam cake 2, and loam cake has liquid injection hole 5.Existing processes is after fluid injection, reaches the effect of electrolyte sealed against leakage with steel nail 6 and liquid injection hole 5 riveted joints.
The disposable lithium-battery of present embodiment, as Fig. 2, its production technology is after fluid injection, carry out the encapsulation first time, earlier rubber-like subsurface material continuously connected fastener 7 is pressed in the liquid injection hole 5, the aperture of the diameter of this continuously connected fastener 7 and liquid injection hole 5 is complementary and seals to form, and continuously connected fastener 7 tops after the sealing are in the middle part of liquid injection hole about in the of 5 approximately.
Thereafter, encapsulation for the second time uses the upper layer of material steel ball 8 that is complementary with liquid injection hole 5 apertures to carry out resistance welded.
Therefore the continuously connected fastener 7 that encapsulation is for the first time used, its intensity need not just hit energetically and can fill in the liquid injection hole 5 less than the steel of loam cake 2.Simultaneously, the elasticity of plastics helps it and fills in liquid injection hole 5 greater than steel, and forms good sealing.And, in filling in process the phenomenon that the tamper body breaks can not appear.
Be solid under the normality, refer in the serviceability temperature scope of described lithium battery, its for the first time encapsulating material remain solid state, to keep the sealing form.
Because electric resistance welding does not need very big external force to hit, so can not cause glass insulator 3 to break.
Claims (5)
1, a kind of disposable lithium-battery comprises loam cake, and loam cake has the liquid injection hole of electrolyte, it is characterized in that, the material that is used to seal described liquid injection hole has two kinds by upper and lower settings, and upper layer of material is a metal, to the requirement of subsurface material is:
1) hardness is less than upper layer of material;
2) elasticity is greater than upper layer of material;
3) be inertia with respect to the electrolyte that injects;
4) under the normality be solid.
2, lithium battery as claimed in claim 1, its encapsulation process is as follows:
After fluid injection is finished, use the subsurface material that is complementary with loam cake liquid injection hole diameter that liquid injection hole is carried out the encapsulation first time, require the top of subsurface material to be lower than upward capping;
Carry out the sealing second time then, liquid injection hole is carried out the resistance welded sealing with metallic upper layer of material.
3, lithium battery as claimed in claim 2 is characterized in that: the part that described upper layer of material and subsurface material are sealed liquid injection hole respectively accounts for half of liquid injection hole height.
4, lithium battery as claimed in claim 3 is characterized in that: described upper layer of material is a steel.
5, lithium battery as claimed in claim 4 is characterized in that: described subsurface material is plastics or wood materials or bamboo wood.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101469290A CN100438133C (en) | 2006-03-28 | 2006-11-16 | Disposable lithium-battery |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200610034688 | 2006-03-28 | ||
| CN200610034688.0 | 2006-03-28 | ||
| CNB2006101469290A CN100438133C (en) | 2006-03-28 | 2006-11-16 | Disposable lithium-battery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1983673A CN1983673A (en) | 2007-06-20 |
| CN100438133C true CN100438133C (en) | 2008-11-26 |
Family
ID=38166021
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006101469290A Active CN100438133C (en) | 2006-03-28 | 2006-11-16 | Disposable lithium-battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100438133C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102820488A (en) * | 2012-07-25 | 2012-12-12 | 深圳市海太阳实业有限公司 | Formation encapsulation method for lithium ion battery |
| CN104091902B (en) * | 2014-07-15 | 2016-07-06 | 惠州威健锂能电子有限公司 | A kind of disposable lithium ion battery of heat shrinkable plastic film shell and manufacture method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1991009429A1 (en) * | 1989-12-07 | 1991-06-27 | Duracell Inc. | High pressure seal for alkaline cells |
| CN1556554A (en) * | 2004-01-08 | 2004-12-22 | 惠州亿纬电源科技有限公司 | Lithium battery |
| CN2711911Y (en) * | 2004-06-17 | 2005-07-20 | 深圳市艾博尔新能源有限公司 | Explosion proof cover assembly for lithium cell |
| CN1649199A (en) * | 2004-01-27 | 2005-08-03 | 三星Sdi株式会社 | Can type secondary battery |
| CN2752965Y (en) * | 2004-12-03 | 2006-01-18 | 中国电子科技集团公司第十八研究所 | Totally-sealing shell for lithium ion battery |
-
2006
- 2006-11-16 CN CNB2006101469290A patent/CN100438133C/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1991009429A1 (en) * | 1989-12-07 | 1991-06-27 | Duracell Inc. | High pressure seal for alkaline cells |
| CN1556554A (en) * | 2004-01-08 | 2004-12-22 | 惠州亿纬电源科技有限公司 | Lithium battery |
| CN1649199A (en) * | 2004-01-27 | 2005-08-03 | 三星Sdi株式会社 | Can type secondary battery |
| CN2711911Y (en) * | 2004-06-17 | 2005-07-20 | 深圳市艾博尔新能源有限公司 | Explosion proof cover assembly for lithium cell |
| CN2752965Y (en) * | 2004-12-03 | 2006-01-18 | 中国电子科技集团公司第十八研究所 | Totally-sealing shell for lithium ion battery |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1983673A (en) | 2007-06-20 |
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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 | ||
| ASS | Succession or assignment of patent right |
Owner name: HUIZHOU YIWEI LITHIUM-ENERGY CO., LTD. Free format text: FORMER OWNER: HUIZHOU YIWEI POWER SUPPLY SCIENCE AND TECHNOLOGY CO., LTD. Effective date: 20080411 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20080411 Address after: Guangdong province Huizhou City Huan Town West Hang Industrial Zone Yi Wei Industrial Park, zip code: 516006 Applicant after: Huizhou EVE Energy Co., Ltd. Address before: Hui Cheng Building, Hui Tai Industrial Area, Guangdong, Huizhou Province, China: 516006 Applicant before: Huizhou Yiwei Power Supply Science and Technology Co., Ltd. |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |