CN2729911Y - Needle-shaped lithium-manganese bioxide battery - Google Patents
Needle-shaped lithium-manganese bioxide battery Download PDFInfo
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- CN2729911Y CN2729911Y CNU2004200888429U CN200420088842U CN2729911Y CN 2729911 Y CN2729911 Y CN 2729911Y CN U2004200888429 U CNU2004200888429 U CN U2004200888429U CN 200420088842 U CN200420088842 U CN 200420088842U CN 2729911 Y CN2729911 Y CN 2729911Y
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- lithium
- battery
- manganese dioxide
- aciculiform
- positive
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Abstract
The utility model relates to a needle-shaped lithium-manganese bioxide battery. A rubber plug is sheathed with one end of a steel needle. A negative sheet made of a lithium metal belt coils at the other end of the steel needle. A membrane winds at the periphery of the negative sheet and seals the end. The outermost layer is packaged with a positive sheet for forming a cell core. The cell core is plugged in the crust of a metal aluminum and is injected with the electrolyte. The battery adopts a reversed pole structure. The steel needle is a negative terminal and is directly connected with the lithium belt of the negative sheet. The shell of the metal aluminum is a positive terminal and is connected with a positive collecting fluid aluminum mesh. The utility model adopts the electrolytic manganese dioxide with low price and wide source to replace the solid carbon fluoride with expensive price as the positive activator of the battery. Thus, the production cost is greatly reduced. Furthermore, the data of the nominal voltage and the specific energy of the battery are very similar to the nominal voltage and the specific energy of the prior battery.
Description
Technical field
The present invention relates to a kind of aciculiform battery, especially a kind of is the lithium battery of positive active material with the electrolytic manganese dioxide.
Background technology
Aciculiform lithium disposable battery in the market mostly adopts solid to fluoridize charcoal (CFx
n) be the active material of anode, the specific energy of this kind battery is higher, and discharging voltage balance, does not also have gas and separate out in storage process, and self discharge is atomic, and security performance is also fine.But this battery also exists certain problem, and that is exactly that solid is fluoridized charcoal (CFx
n) material is because the source is less, the price comparison costliness, thereby production cost of cells is strengthened.And more common lithium disposable battery on the present market is lithium-manganese dioxide battery substantially, just replaces solid with electrolytic manganese dioxide and fluoridizes charcoal (CFx
n) as positive electrode active material.The result of use of this battery is also fine, but does not also have a kind of technology of maturation that it is applied on the aciculiform battery.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art part, the aciculiform lithium-manganese dioxide battery that a kind of positive active material material source is extensive, with low cost, electrical property is good is provided.
Technical solution of the present invention is: a kind of aciculiform lithium-manganese dioxide battery, form by positive plate, negative plate, barrier film, housing, plug, electrolyte, electrolyte, draw point etc.Positive plate is the cathode film that is pressed with the aluminium net, and cathode film is made of electrolytic manganese dioxide, compression acetylene black, graphite, adhesive; Negative plate is a metal lithium bands; Barrier film is polypropylene and polyethylene composite film; Electrolyte is LiClO
4, electrolyte is propene carbonate (PC), glycol dimethyl ether (DME) and two luxuriant pentane (DOL) mixed liquors.
The invention has the beneficial effects as follows, and electrolytic manganese dioxides wide material sources more cheap with price have replaced the comparatively expensive solid of price to fluoridize charcoal, product cost is reduced greatly, and the nominal voltage of battery, also all the battery with original is very close for data such as specific energy.
Description of drawings
Fig. 1 is the utility model structural representation.
Fig. 2 is an each several part size schematic diagram of the present utility model
Embodiment
Is that the present invention is described in detail for embodiment below in conjunction with accompanying drawing with CR435 aciculiform lithium-manganese dioxide battery:
Aciculiform lithium-manganese dioxide battery of the present invention, form by positive plate 5, negative plate 3, membrane layer 4, aluminum hull 6, plug 2, electrolyte, electrolyte, shank 1 etc., wherein positive plate 5 is for being pressed with the cathode film of aluminium net, and cathode film is made of electrolytic manganese dioxide, compression acetylene black, graphite, adhesive; Negative plate 3 is a metal lithium bands; Membrane layer 4 is polypropylene and polyethylene composite film; Electrolyte is LiClO
4, electrolyte is propene carbonate (PC), glycol dimethyl ether (DME) and two luxuriant pentane (DOL) mixed liquors.
CR435 aciculiform lithium-manganese dioxide battery positive active material is the special-purpose EMD of 200～300 purpose mercury-free alkaline manganese dioxide batteries, toasts in 370～390 ℃ high temperature oven 18～20 hours, at room temperature naturally cools to uniform temp then.Acetylene black raw material and industrial alcohol are by after 1: 1 the mixed, and early compacting is crossed 60 purpose moto-vibro screens in flakes then on the twin rollers, makes density reach 4～5ml/g.Pour in the mixer of band water bath with thermostatic control after EMD, acetylene black and the graphite of above-mentioned processing mixed in ball mill, the waters temperature is set at 80～90 ℃, once add temperature and be 80 ℃ deionized water and concentration and be 37% industrial alcohol, stir after 30～40 minutes that to add concentration be 60% ptfe emulsion, stir the paste that became thickness in 30～40 seconds fast.Above-mentioned paste is baked to half-dried in 150 ℃ of baking ovens, pulverizes then, and rub into cream with absolute ethyl alcohol.On the twin rollers of band heating, paste is pressed into the membranaceous of even compact, and with cleaned tiltedly draw the roll extrusion of aluminium net together, THICKNESS CONTROL is at 0.68～0.72mm, with cut-off knife cathode film is cut into the pole piece of the wide 9mmd of long 21mm, and it is cylindric to be rolled into individual layer then on thin cylindrical die.The pole piece of spooling is placed in 150 ℃ of baking ovens baking 20 hours, and changing temperature then over to is 170～180 ℃, bullies and oppresses in the vacuum tank that is lower than 0.1MPa dry 20～24 hours, is equipped with assembling and uses.
Negative plate 3 adopts metal lithium bands, thickness 0.165mm, and just, the barrier film 4 between the negative pole is being polypropylene and polyethylene composite film, thickness is 0.025mm.Electrolyte adopts LiClO
4, concentration is 1.0mol/L, electrolyte adopts propene carbonate (PC), glycol dimethyl ether (DME) and two luxuriant pentane mixed liquors (DOL).The quality proportioning is PC: DME: DOL=5: 3: 2.Negative current collector adopts the stainless pin of 304 materials, external diameter 1.0mm, long 33mm.A needle body surface part is handled the smooth rounding in two ends through mechanical annular knurl.Battery container 6 adopts metallic aluminium, diameter 4.0mm, wall thickness 0.3mm.Oral area adopts plug 2 sealings, and material is an acid and alkali-resistance rubber.
The assembling process of battery is as follows: assembled battery is carried out in-35 ℃ the glove box in dew point temperature, and accessories such as housing 6, plug 2, draw point 1, barrier film 4 are dry more than 18 hours in 60 ℃ of high temperature ovens.The lithium band is cut into the high 0.165mm of the wide 10mm of long 23mm, and barrier film 4 is cut into the thick 0.025mm of the wide 15mm of long 28mm.Plug 2 is enclosed within the end that draw point 1 is handled without annular knurl, the lithium tape wrapping is at the draw point other end, barrier film 4 is wrapped in the periphery of negative plate 3, and the end shut with the electric iron welding, wrap positive plate 5 then, again with stamping machine with electric core be depressed into diameter about 0.35mm with ready-made electric core plug in housing 6, inject electrolyte, put into vacuum degree and be the container maintenance of-0.06MPa 5～8 seconds.Be pressed into plug 2, slot rolling, bundle mouth after the taking-up, finish after the cleaning.
Claims (7)
1. aciculiform lithium-manganese dioxide battery, it is characterized in that plug is enclosed within draw point one end, the negative plate that metal lithium bands is made is wound on the draw point other end, barrier film is wrapped in the periphery of negative plate, and the end shut, outermost layer is wrapped positive plate, forms electric core, electricity core plug injects electrolyte in the housing of metallic aluminium; Battery adopts antipole formula structure, and draw point is a negative terminal, directly is connected with negative plate lithium band, and the housing of metallic aluminium is a positive terminal, links to each other with plus plate current-collecting body aluminium net.
2. a kind of aciculiform lithium-manganese dioxide battery according to claim 1, it is characterized in that by electrolytic manganese dioxide, compress acetylene black, graphite, adhesive and become paste, the cream that is become is rolled into the film of even compact repeatedly on the roller press of band heater, thickness is between 0.50～0.80mm.
3. a kind of aciculiform lithium-manganese dioxide battery according to claim 2 is characterized in that film and the metallic aluminium net made roll together, aluminium net single face press mold on roller press.
4. a kind of aciculiform lithium-manganese dioxide battery according to claim 1 is characterized in that the membrane layer between the both positive and negative polarity is polypropylene and polyethylene composite film, and thickness is 0.024～0.026mm.
5. a kind of aciculiform lithium-manganese dioxide battery according to claim 1 is characterized in that the metallic aluminium net thickness as plus plate current-collecting body is 0.30～0.45mm, and mesh is a rhombus, and aperture size is (1.8～2.2) mm * (2.～2.5) mm.
6. a kind of aciculiform lithium-manganese dioxide battery according to claim 1 is characterized in that adopting 304 stainless steels as the stainless pin of negative current collector, and needle body is handled through annular knurl, the smooth rounding in two ends.
7. a kind of aciculiform lithium-manganese dioxide battery according to claim 1 is characterized in that plug adopts the rubber stopper of acid and alkali-resistance, and rubber stopper is enclosed within on the draw point, and with the housing concentric shafts, adopt the slot rolling sealing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2004200888429U CN2729911Y (en) | 2004-08-24 | 2004-08-24 | Needle-shaped lithium-manganese bioxide battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2004200888429U CN2729911Y (en) | 2004-08-24 | 2004-08-24 | Needle-shaped lithium-manganese bioxide battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2729911Y true CN2729911Y (en) | 2005-09-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2004200888429U Expired - Fee Related CN2729911Y (en) | 2004-08-24 | 2004-08-24 | Needle-shaped lithium-manganese bioxide battery |
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| CN (1) | CN2729911Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102150304A (en) * | 2009-06-16 | 2011-08-10 | 松下电器产业株式会社 | Method of producing negative electrode for non-aqueous electrolyte secondary battery, negative electrode, and non-aqueous electrolyte secondary battery using the same |
| CN103746126A (en) * | 2014-01-09 | 2014-04-23 | 东莞市桥头洁宇诗电子厂 | Lithium manganese needle-type battery and manufacturing method thereof |
-
2004
- 2004-08-24 CN CNU2004200888429U patent/CN2729911Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102150304A (en) * | 2009-06-16 | 2011-08-10 | 松下电器产业株式会社 | Method of producing negative electrode for non-aqueous electrolyte secondary battery, negative electrode, and non-aqueous electrolyte secondary battery using the same |
| CN103746126A (en) * | 2014-01-09 | 2014-04-23 | 东莞市桥头洁宇诗电子厂 | Lithium manganese needle-type battery and manufacturing method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: HUIZHOU DESAI LITHIUM ELECTRICAL TECHNOLOGY CO., Free format text: FORMER OWNER: HUIZHOU DESAI ENERGY TECHNOLOGY CO., LTD. Effective date: 20081114 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20081114 Address after: B District, No. 48 Guangdong province Huizhou City Zhongkai road Pingnan Industrial Zone, zip code: 516006 Patentee after: Huizhou Desay Battery Technology Co., Ltd. Address before: No. 2 Gu Tong Industrial Zone, Guangdong City, Huizhou Province, China: 516008 Patentee before: Desai Energy Science and Technology Co., Ltd., Huizhou |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20050928 Termination date: 20130824 |