Title: VALVE-REGULATED LEAD-ACID CELLS AND BATTERIES
AND SEPARATORS
USED IN SUCH CELLS AND BATTERIES
| Inventors: |
Detchko Pavlov Detchkov, Sofia (BG);
Stefan Ivanov Ruevski, Sofia (BG);
Veselin Bozhidarov Naidenov, Sofia (BG);
Vera Vladimirova Mircheva, Sofia (BG);
Galia Angelova Petkova, Sofia (BG);
Mitko Kolev Dimitrov, Sofia (BG);
Temelaki Vasilev Rogachev, Sofia (BG);
Mariana Hristova Cherneva-Vasileva, Sofia (BG) |
Assignee(s): Unassigned Or Assigned To Individual
Patent No: US 6509118 B1 Application No: US 09/423026
Date of Patent: Jan. 21, 2003 Application date: Jan. 18, 2000
Main US classification: 429225000
Secondary US classification: 429129000, 429142000, 429144000, 429247000, 429248000, 429249000, 429250000, 429251000, 429252000, 429253000, 429254000
Main international classification: H01M-004/56
ABSTRACT:
A valve-regulated lead-acid cell utilizes an absorptive glass mat separator having a glass fiber surface which is modified by treatment with at least one particular polymer, as by treatment with a polymer emulsion to coat at least part of the glass fiber surface and then sintering to dry the coating, the polymers including polyolefins, polytetrafluoroethylene, polyvinylchlorides, polyacrylonitriles, polyesters, amphiphilic block and graft copolymers and polyorganosilica compounds such as polysilanes and polysiloxanes.
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