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Title:
SEPARATORS FOR ZINC CARBON CELLS
Document Type and Number:
WIPO Patent Application WO1999035700
Kind Code:
A3
Abstract:
A coated paper separator for a zinc carbon cell, wherein the coating further comprises a quaternary, hydrocarbon-substituted ammonium compound, and wherein the gellant and additive have a hydrolipophilic balance of less than 17, has significant advantages in reducing leakage in zero lead cells. This is further enhanced by solution addition of electrolyte just prior to sealing of the cell.

Inventors:
RANDELL CHRISTOPHER FRED (GB)
WHITE NEAL CHARLES (GB)
Application Number:
PCT/GB1999/000014
Publication Date:
December 02, 1999
Filing Date:
January 04, 1999
Export Citation:
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Assignee:
EVER READY LTD (GB)
RANDELL CHRISTOPHER FRED (GB)
WHITE NEAL CHARLES (GB)
International Classes:
H01M2/16; H01M6/06; (IPC1-7): H01M6/06; D21H17/07; D21H17/29; H01M2/02; H01M2/16; H01M6/08
Domestic Patent References:
WO1996038867A11996-12-05
WO1998007204A11998-02-19
Foreign References:
US5645611A1997-07-08
GB1418866A1975-12-24
US3877993A1975-04-15
EP0603727A11994-06-29
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