GB569217A - Improvements relating to the production of depolarising materials for use in primaryelectrical cells - Google Patents

Improvements relating to the production of depolarising materials for use in primaryelectrical cells

Info

Publication number
GB569217A
GB569217A GB6876/43A GB687643A GB569217A GB 569217 A GB569217 A GB 569217A GB 6876/43 A GB6876/43 A GB 6876/43A GB 687643 A GB687643 A GB 687643A GB 569217 A GB569217 A GB 569217A
Authority
GB
United Kingdom
Prior art keywords
zinc
pyrolusite
product
stirred
dried
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
Application number
GB6876/43A
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.)
JOHN BRIDGEFORD MAXWELL COPPOC
Boots Pure Drug Co Ltd
Original Assignee
JOHN BRIDGEFORD MAXWELL COPPOC
Boots Pure Drug 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 JOHN BRIDGEFORD MAXWELL COPPOC, Boots Pure Drug Co Ltd filed Critical JOHN BRIDGEFORD MAXWELL COPPOC
Priority to GB6876/43A priority Critical patent/GB569217A/en
Publication of GB569217A publication Critical patent/GB569217A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/36—Selection of substances as active materials, active masses, active liquids
    • H01M4/48—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides
    • H01M4/50—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese
    • 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

569,217. Batteries. BOOTS PURE DRUG CO., Ltd., COPPOCK, J. B. M., and GREW, E. L. April 30, 1943. No. 6876. [Class 53] [Also in Group III] A neutral compound for use as an activator with manganese dioxide depolarizing agents in primary electric cells is obtained by hydrating pyrolusite or like natural manganese ore by the action of an alkali metal hydroxide and then replacing the alkali metal in the hydrated manganese dioxide formed, by base exchange, by treatment with a soluble zinc salt. The product contains a hydrated form of zinc manganite, and the addition of 25 per cent of the product by weight to untreated pyrolusite is found to increase the life of a cell in which it is employed as a depolarizer by about 70-100 per cent. According to an example, powdered natural pyrolusite is added slowly with vigorous stirring to fused caustic soda until the mixture begins to solidify. The resulting greenishbrown friable mass is cooled, ground to a fine powder, washed with successive portions of cold water, filtered and dried in an oven at 50‹ C. The product thus obtained is stirred with successive portions of zinc sulphate solution until the supernatent liquor is found to contain zinc. The solid is then stirred with a further portion of zinc sulphate solution, washed twice with water by decantation and dried at a temperature not exceeding 70‹ C.
GB6876/43A 1943-04-30 1943-04-30 Improvements relating to the production of depolarising materials for use in primaryelectrical cells Expired GB569217A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB6876/43A GB569217A (en) 1943-04-30 1943-04-30 Improvements relating to the production of depolarising materials for use in primaryelectrical cells

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB6876/43A GB569217A (en) 1943-04-30 1943-04-30 Improvements relating to the production of depolarising materials for use in primaryelectrical cells

Publications (1)

Publication Number Publication Date
GB569217A true GB569217A (en) 1945-05-14

Family

ID=9822396

Family Applications (1)

Application Number Title Priority Date Filing Date
GB6876/43A Expired GB569217A (en) 1943-04-30 1943-04-30 Improvements relating to the production of depolarising materials for use in primaryelectrical cells

Country Status (1)

Country Link
GB (1) GB569217A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2418965A1 (en) * 1978-03-02 1979-09-28 Berec Group Ltd DRY BATTERY
US4277360A (en) 1979-03-28 1981-07-07 Union Carbide Corporation Manganese dioxide

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2418965A1 (en) * 1978-03-02 1979-09-28 Berec Group Ltd DRY BATTERY
US4277360A (en) 1979-03-28 1981-07-07 Union Carbide Corporation Manganese dioxide

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