Tin-clad substrates for use as current collectors, batteries comprised thereof and methods for preparing same
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
H01M-004/64
B32B-015/00
출원번호
US-0732387
(2000-12-07)
발명자
/ 주소
Gillman, Leland M.
Bhardwaj, Ramesh C.
출원인 / 주소
GP Batteries International, Ltd.
대리인 / 주소
Procopio, Cory, Hargreaves & Savitch, LLP
인용정보
피인용 횟수 :
3인용 특허 :
1
초록▼
The present invention provides a current collector for a battery which comprises a lead or lead alloy substrate and a thin cladding of tin, batteries utilizing such a current collector and methods for manufacturing such batteries. Preferably the tin cladding is composed of substantially pure tin and
The present invention provides a current collector for a battery which comprises a lead or lead alloy substrate and a thin cladding of tin, batteries utilizing such a current collector and methods for manufacturing such batteries. Preferably the tin cladding is composed of substantially pure tin and the concentration of the tin cladding relative to the weight of the current collector (i.e., the combined weight of the substrate and cladding) is less than 4% by weight. The tin cladding forms a noncontinuous layer over the outer surface of the substrate such that there are interspersed regions of lead and tin at the current collector surface. Batteries utilizing such current collectors exhibit marked improvement in performance compared to similar cells composed of tin alloys. In particular, batteries using current collectors of the present design offer superior cycle life and shelf life performance.
대표청구항▼
The present invention provides a current collector for a battery which comprises a lead or lead alloy substrate and a thin cladding of tin, batteries utilizing such a current collector and methods for manufacturing such batteries. Preferably the tin cladding is composed of substantially pure tin and
The present invention provides a current collector for a battery which comprises a lead or lead alloy substrate and a thin cladding of tin, batteries utilizing such a current collector and methods for manufacturing such batteries. Preferably the tin cladding is composed of substantially pure tin and the concentration of the tin cladding relative to the weight of the current collector (i.e., the combined weight of the substrate and cladding) is less than 4% by weight. The tin cladding forms a noncontinuous layer over the outer surface of the substrate such that there are interspersed regions of lead and tin at the current collector surface. Batteries utilizing such current collectors exhibit marked improvement in performance compared to similar cells composed of tin alloys. In particular, batteries using current collectors of the present design offer superior cycle life and shelf life performance. e Labels, Paper by Michael C. Paddock at 1985 Coextrusion Conference, pp. 85-98. Proprietary Information Disclosure Agreement between Avery International Corporation and Package Products Co., dated Feb. 14, 1984. H.H. Walbaum et al, "Plastic Papers-Materials, Processes, Microstructures," presented at the TAPPI 1974 Testing Paper Synthetics Conference. T.J. Collier, "Synthetic Paper-Where To Now?", pp. 181-183, presented at the 1974 TAPPI Testing Paper Synthetics Conference. Crown Advanced Films Film Guide (Nov. 1982). Schrenk et al, "Coextrusion of Blown Multilayer Plastic Films," presented at the 163rd Meeting of the American Chemical Society in Boston, Apr. 1972. Mearl Iridescent Film Brochure, Sep. 1977. "Reformulated Iridescent Film," Soap, Cosmetics, Chemical Specialties, p. 103 (Oct. 1979). "Iridescent Films," Paper, Film & Foil Converter, pp. 58-59 (Sep. 1976). Mearl Iridescent Films General Information (Jun. 1981). Flexcon Dec. 1980 Special Meeting. ICI Propafilm MG Brochure, Technical Information Note PF306 (1981). Propafilm for Packaging (1983). Bradley, "Anatomy of a Label Challenge," Food & Drug Packaging (May 1982). Propafilm D804, Provisional Data Sheet PF TD 4 (1981). P.T. Galvin, "Conversion of Metallized Melinex and Propafilm," Part 1--Structures (Feb. 24, 1982). Pri
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이 특허에 인용된 특허 (1)
Nelson Robert F. (Warrensburg MO) Wisdom David M. (Warrensburg MO), Binary lead-tin alloy substrate for lead-acid electrochemical cells.
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