[특허]Surface recrystallization of lead-alloy grid

[미국특허] Surface recrystallization of lead-alloy grid 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	H01M-004/80 H01M-004/74
출원번호	US-0034488 (1998-03-04)
발명자 / 주소	Kwok Wellington Y. Brost Ronald David Plant Lawrence Bruce
출원인 / 주소	General Motors Corporation
대리인 / 주소	Dobrowitsky
인용정보	피인용 횟수 : 20 인용 특허 : 5

초록 ▼

Melting and recrystallizing the surfaces of a wrought Pb--Ca--Sn alloy strip from which positive Pb-acid storage battery grids are punched or expanded. The alloy also contains an alloyant such as silver which, upon recrystallization, provides a higher concentration of alloyant-rich grain boundaries on the surface of the grid than the wrought grid for enhancing the conductivity of any oxidation layer formed on the surface of the grid during high temperature cycling of the battery.

대표청구항 ▼

[ What is claimed is:] [1.] A method of manufacturing wrought, positive, lead-acid storage battery grids for improved high temperature cycle life of maintenance-free batteries made therefrom, comprising the steps of:a. casting a ribbon of substantially antimony-free, lead-calcium-tin alloy comprising an alloyant selected from the group consisting of metals which are oxidation-resistant in the presence of sulfuric acid electrolytes in lead-acid batteries and metals which form electrically conductive oxides, said ribbon having an as-cast microstructure comprising a plurality of substantially unaligned, conjoined, grains having a network of grain boundaries between said grains that are richer in said alloyant than said grains, said grains (a) ranging in size from about 0.025 mm to about 0.100 mm, (b) having a density on the surface of said grid confronting said lead containing active material of about 200 to about 1000 grains per square millimeter, and (c) an aspect ratio between about 1 and 4;b. rolling said ribbon to produce a wrought strip having first and second opposing major surfaces, said rolling causing the grains of said alloy to elongate and align generally in the direction of said rolling;c. melting a first layer of said alloy at said first major surface, said first layer having a depth which is less than 1/2 the thickness of said strip;d. solidifying said first layer to recrystallize said first layer to a microstructure akin to said as-cast microstructure;e. punching or expanding said strip to form a positive grid for supporting the battery's active material;f. and extracting heat from said strip through said second surface while melting said first layer to prevent said strip from excessive melting by preventing the entire strip from melting therethrough.

이 특허에 인용된 특허 (5) 인용/피인용 타임라인 분석

Chen Yu-Lin, Hot dipped PB-CA grids for lead-acid batteries.
상세보기
Kim Michael M. (Raleigh NC) Carr Dodd S. (Durham NC), Lead alloy battery grids by laser treatment.
상세보기
Matter Robert C. (Anderson IN), Lead-calcium-tin battery grid.
상세보기
Matter Robert C. (Anderson IN), Process for making wrought, lead-calcium battery grid alloy having high temperature tensile strength stability.
상세보기
Yasuda Hiroshi (Shizuoka JPX) Furuya Sadao (Toyohashi JPX) Hoshihara Naoto (Shizuoka JPX) Yamaguchi Takashi (Kosai JPX) Takahashi Katsuhiro (Toyohashi JPX) Ishii Teruaki (Kosai JPX), Process for producing a grid for use in lead acid batteries.
상세보기

이 특허를 인용한 특허 (20) 인용/피인용 타임라인 분석

Mack, Robert J.; Troxel, Jeffrey L., Battery and battery plate assembly.
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Chen, Yu-Lin, Battery grid.
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Kao, Wen-Hong; Andersen, Glenn W.; Taylor, Eric M.; Adams, Kenneth A.; Mrotek, Edward N.; Zagrodnik, Jeffrey P., Battery grid.
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Kao, Wen-Hong; Andersen, Glenn W.; Taylor, Eric M.; Adams, Kenneth A.; Mrotek, Edward N.; Zagrodnik, Jeffrey P., Battery grid.
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Kao, Wen-Hong; Andersen, Glenn W.; Taylor, Eric M.; Adams, Kenneth A.; Mrotek, Edward N.; Zagrodnik, Jeffrey P., Battery grid.
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Kao, Wen-Hong; Kao, legal representative, Shu Jen F.; Andersen, Glenn W.; Taylor, M. Eric; Adams, Kenneth A.; Mrotek, Edward N.; Zagrodnik, Jeffrey P., Battery grid.
상세보기
Schaeffer, Charles J.; Troxel, Jeffrey L.; Taylor, M. Eric; Kao, Wen-Hong; Hansen, Christian P.; Chen, Yu-Lin; Cantillon, Dan J.; Sauer, Bart, Battery grid.
상세보기
Schaeffer, Charles J.; Troxel, Jeffrey L.; Taylor, M. Eric; Kao, Wen-Hong; Hansen, Christian P.; Chen, Yu-Lin; Cantillon, Dan J.; Sauer, Bart, Battery grid.
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Binder, Richard R., Battery grids and methods for manufacturing same.
상세보기
Mack, Robert J.; Troxel, Jeffrey L., Battery, battery plate assembly, and method of assembly.
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Bauer Jurgen,DEX ; Standke-Thiemann Christine,DEX ; Tonnessen Albert,DEX, Electrode grid for lead storage batteries.
상세보기
Staffeldt, Armin; Koch, Ingo; Ide, Bernd; Traisigkhachol, Ornwasa, Grid assembly for a plate-shaped battery electrode of an electrochemical accumulator battery.
상세보기
Zhang, Lu; Ayres, John Lewis, Lead alloy surface coating for positive lead-acid battery grids and methods of use.
상세보기
Chen, Yu-Lin, Method for making battery plates.
상세보기
Chen,Yu Lin, Method for making battery plates.
상세보기
Schaeffer, Charles J.; Troxel, Jeffrey L.; Taylor, M. Eric; Kao, Wen-Hong; Hansen, Christian P.; Chen, Yu-Lin; Cantillon, Dan J.; Sauer, Bart, Method of making a battery.
상세보기
Schaeffer, Charles J.; Troxel, Jeffrey L.; Taylor, M. Eric; Kao, Wen-Hong; Hansen, Christian P.; Chen, Yu-Lin; Cantillon, Dan J.; Sauer, Bart, Method of making a battery grid.
상세보기
Schaeffer, Charles J.; Troxel, Jeffrey L.; Taylor, M. Eric; Kao, Wen-Hong; Hansen, Christian P.; Chen, Yu-Lin; Cantillon, Dan J.; Sauer, Bart, Method of producing battery plates.
상세보기
Troxel, Jeffrey L.; Schaeffer, Charles J.; Andersen, Glenn W.; Lacroix, Michael E.; Kao, Wen-Hong, Negative grid for battery.
상세보기
Tomantschger, Klaus; Limoges, David L.; Lin, Peter K.; Palumbo, Gino, Perforated current collectors for storage batteries and electrochemical cells, having improved resistance to corrosion.
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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

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[미국특허] Surface recrystallization of lead-alloy grid 원문보기