CN1041255C - Separator for Zn-Mn battery - Google Patents
Separator for Zn-Mn battery Download PDFInfo
- Publication number
- CN1041255C CN1041255C CN93119479A CN93119479A CN1041255C CN 1041255 C CN1041255 C CN 1041255C CN 93119479 A CN93119479 A CN 93119479A CN 93119479 A CN93119479 A CN 93119479A CN 1041255 C CN1041255 C CN 1041255C
- Authority
- CN
- China
- Prior art keywords
- felted
- battery
- interlayer
- separator
- fibrage
- 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.)
- Expired - Fee Related
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Classifications
-
- 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
- H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
- H01M50/409—Separators, membranes or diaphragms characterised by the material
-
- 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
Abstract
The present invention relates to a diaphragm used for zinc manganese dry battery which is a new battery isolated layer material. The present invention is a composite diaphragm which has an isolated layer, a diaphragm layer and a mutual penetration layer and is made from porous elastic fiber feels made from natural fiber and synthetic fiber are used as carriers and spread with diaphragm materials containing non-aqueous solubility gelatinization agent. Batteries made from the present invention have the advantages of small internal resistance, large short circuit current, good liquid preservation performance, strong crystallisation resistance capability, long service life and long storage period.
Description
The present invention relates to relate in particular to separator for Zn-Mn battery in battery diaphragm.
The third generation product cell with paperboard partition of dry cell industry in these years comes into the market, and the insolated layer materials of its usefulness is a pulp layered paper.Pulp layered paper is coated with the coating materials that one deck contains water-soluble paste agent and makes on the cable paper paper substrate, its structure is interlayer and rete two-layer structure.Though this kind cell with paperboard partition is easy to industrialization than the hull cell of single layer structure, and is widely adopted, ubiquity defectives such as the inner ion passage resistance of barrier film is big, and ion permeability is poor, and guarantor's fluidity is poor, easily separates out crystallization in negative terminal surface, and storage period is short.These defectives have perplexed the development of battery industry for a long time, therefore, exist an urgent demand that promotes that battery updates.
Separator for Zn-Mn battery of the present invention has interlayer and rete; interlayer is the composite fibre paper substrate; also has one deck poroelasticity felted fibrage on interlayer top; on this felted fibrage, one deck rete is arranged; composite fibre is made up of the mixing wood pulp of the 80%-100% of percetage by weight and the polyvinyl formal silk of 0-20%; described felted fibrage is made of kp softwood pulp; make the filmogen of rete and form its prescription following (percetage by weight) by the water-insoluble pasty state agent material that contains deacetylation shell element (being shitosan):
Acrylonitrile-vinyl acetate 6-10%
Deacetylation chitin 5-10%
Crosslinked starch 30-50%
Etherificate crosslinked starch 20-25%
Poly-ethanol octyl phenyl ether 2-10%
Corrosion inhibiter 2-10%
Free water surplus filmogen has formed one deck rete on interlayer, because filmogen is to the fibrolaminar infiltration of felted, the felted fibrage just is formed into the mutual infiltration layer of membrane material.Repressed, dry, cut, be separator for Zn-Mn battery after the rolling technology.
Separator for Zn-Mn battery of the present invention has the following advantages:
1, because the filmogen carrier that has adopted paper substrate that composite fibre makes and felted fibrage to combine has porous and elasticity, so internal resistance is little, short circuit current is big, than the high 0.5-1.0A of short circuit current of pulp layered paper battery.
2, because the existence of infiltration layer mutually speeds up ions diffusion, and ion permeability is good, be suitable for the heavy load discharge.
3, because have the three-decker of interlayer, mutual infiltration layer, rete, increased the imbibition ability of barrier film, and imbibition ability has following rule: (negative pole) rete＞mutual infiltration layer＞interlayer (positive pole), this makes negative terminal surface can keep enough electrolyte, delay to finish trichite effectively and give birth to, prolonged quality guarantee period and storage period.
4, the anticol ability is strong, and the felted fibrage has salt tolerance, (electrochemical stability), even in the battery discharge later stage, zinc ion concentration sharply increases, also be difficult for gel, still can keep loose structure, hydrone can pass through barrier film smoothly, has improved the leak resistance of battery.
5, because of in filmogen, containing the deacetylation chitin, run into just gelatinization immediately of electrolyte, and in discharge process, do not degrade, improved the storage and the useful life of battery.
Now separator for Zn-Mn battery of the present invention is elaborated by drawings and Examples.
Fig. 1 is the structural representation of separator for Zn-Mn battery of the present invention.
Separator for Zn-Mn battery of the present invention is made on associating diaphragm forming machine according to the following steps.
One, interlayer 1 is made
Interlayer 1 is applying one deck felted fibrage on the composite fibre paper substrate.
1, paper substrate moulding
The composite fibre prescription is (percetage by weight):
Mix wood pulp 80-100%
Polyvinyl formal silk 0-20% manufactures paper with pulp into the paper substrate that thickness is the 25-40 micron at the paper substrate shaping step with described composite fibre.
2, felted fibrage moulding
Kp softwood pulp is made the felted fibrage of 40-80 micron thickness at felted fibrage shaping step.
3, fit
At the applying work step above-mentioned paper substrate is fitted into fibrofelt with above-mentioned felted fibrage.
4, oven dry
At the oven dry work step with the above-mentioned fibrofelt of fitting of cylinder dried.
Two, rete 3 is made
1, the water-insoluble paste agent of filmogen, press following formulated (percetage by weight):
Acrylonitrile-vinyl acetate 6-10%
The deacetylation chitin is shitosan 5-10%
Crosslinked starch 30-50%
Etherificate crosslinked starch 20-25%
Poly-ethanol octyl phenyl ether 2-10%
Corrosion inhibiter 2-10%
The Free water surplus with above-mentioned material and deionized water with 1: 2.5-1: 3.5 mix, and stir then.Afterwards, mixed in the machine froth breaking mixing 0.5-2.0 hour in essence again.
2, the above-mentioned filmogen for preparing is carried out curtain coating coating in the felted fiber layer surface of interlayer 1, coating weight be the 25-30 gram/square metre, form rete 3.
Coating materials penetrates in the felted fiber, forms mutual infiltration layer 2.
3, in the bridge-type hot-air drier through 80-120 ℃ of high temperature drying and 60-80 ℃ of low temperature drying, make water content after the moisture regain and be not more than 10% view picture barrier film.
Three, finished product is made
1, finalizes the design through 60 ℃ of hot-rolling flatirons at the flatiron work step.
2, cut by required specification cutting work step.
3, be the plate-like finished product in the rolling of rolling work step.
Make high conduction mixture type R6P battery simultaneously with separator for Zn-Mn battery of the present invention and homemade pulp layered paper, other material is identical with process conditions.Regulation by the GB7112-86 standard is carried out control test, result such as following table:
| Test item | Unit | Standard-required | Test cell (battery diaphragm) | Control cell (pulp layered paper) |
| Maximum open circuit voltage | V | 1.72 | 1.70 | 1.69 |
| Short circuit current | A | 2.5 | 8.2 | 7.5 |
| Put between 75 Ω | h | 40 | 53 | 47 |
| Put between 10 Ω | min | 240 | 303 | 278 |
| Anti-leak rate | ％ | 100 | 100 | 89 |
| Last storage period electric current | A | 1.5 | 6.3 | 2.4 |
Separator for Zn-Mn battery of the present invention is owing to have three-decker so have more excellent electrochemical properties than pulp layered paper, with all being significantly improved capacity, power, anti-leakage and storage period of the battery of its assembling.
Claims (3)
1, a kind of separator for Zn-Mn battery; have interlayer and rete; it is characterized by interlayer is the composite fibre paper substrate; also has one deck poroelasticity felted fibrage on interlayer top; on this felted fibrage, one deck rete is arranged; composite fibre is that the mixing wood pulp of 80-100% and the polyvinyl formal silk of 0-20% are formed by percetage by weight; described felted fibrage is made of kp softwood pulp; make the filmogen of rete and form its prescription following (percetage by weight) by the water-insoluble pasty state agent material that contains the deacetylation chitin:
Acrylonitrile-vinyl acetate 6-10%
Deacetylation chitin 5-10%
Crosslinked starch 30-50%
Etherificate crosslinked starch 20-25%
Poly-ethanol octyl phenyl ether 2-10%
Corrosion inhibiter 2-10%
The Free water surplus
2, separator for Zn-Mn battery according to claim 1, it is characterized by composite fibre paper substrate thickness is the 25-40 micron, the felted fiber layer thickness is the 40-80 micron.
3, separator for Zn-Mn battery according to claim 1 and 2, it is characterized by the coating weight of filmogen on interlayer and be the 25-30 gram/square metre.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN93119479A CN1041255C (en) | 1993-11-02 | 1993-11-02 | Separator for Zn-Mn battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN93119479A CN1041255C (en) | 1993-11-02 | 1993-11-02 | Separator for Zn-Mn battery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1094190A CN1094190A (en) | 1994-10-26 |
| CN1041255C true CN1041255C (en) | 1998-12-16 |
Family
ID=4992949
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN93119479A Expired - Fee Related CN1041255C (en) | 1993-11-02 | 1993-11-02 | Separator for Zn-Mn battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1041255C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106129379A (en) * | 2016-08-31 | 2016-11-16 | 广东力王新能源股份有限公司 | Large-current alkaline zinc-manganese battery using superfine alloy zinc powder |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4288503A (en) * | 1978-06-16 | 1981-09-08 | Amerace Corporation | Laminated microporous article |
| US4529677A (en) * | 1982-02-02 | 1985-07-16 | Texon Incorporated | Battery separator material |
-
1993
- 1993-11-02 CN CN93119479A patent/CN1041255C/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4288503A (en) * | 1978-06-16 | 1981-09-08 | Amerace Corporation | Laminated microporous article |
| US4529677A (en) * | 1982-02-02 | 1985-07-16 | Texon Incorporated | Battery separator material |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1094190A (en) | 1994-10-26 |
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Addressee: Qi Dafei Document name: payment instructions |
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| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |