IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0262977
(1999-03-05)
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발명자
/ 주소 |
- Joseph Lynn Passaniti
- Susan Jean Launder
- John Edward Oltman
- Robert Brian Dopp
- Gregory Scott Moy
- Michael Andrew Ward
|
출원인 / 주소 |
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
8 인용 특허 :
54 |
초록
▼
An elongate, generally tubular, air depolarized electrochemical cell (10) comprising a cathode (14), including an air cathode assembly (26), extending about the tubular circumference, and along the tubular length, of the cell (10), an anode (12), a separator (16) between the anode (12) and the catho
An elongate, generally tubular, air depolarized electrochemical cell (10) comprising a cathode (14), including an air cathode assembly (26), extending about the tubular circumference, and along the tubular length, of the cell (10), an anode (12), a separator (16) between the anode (12) and the cathode (14), electrolyte, a top closure member (177, 200), and a bottom closure member (114, 202). The cathode assembly (26) is fixedly held, by a friction fit, in a slot (116) at the bottom of the cell. The slot can be developed, for example, by inner (110) and outer (114) wars of a cathode can (28), by inner (226) and outer (224) walls of a bottom closure member (202), or by an outer wall (114) of a cathode can (28) and an opposing outer wall of a plug (128) on the interior of the cell. Preferably, bottom closure structure of the cell (10) and receives a bottom edge portion (44) of the cathode current collector (32), and makes electrical contact with, the bottom edge portion (44), preferably at an inner surface (60) of the cathode current collector. A diffusion member (36) of the cathode assembly (26) is preferably compressed as a seal, at the bottom of the cell (10), between an outer side wall (39) of the cell and the remainder of the cathode assembly (26). The diffusion member (36) is also used at least as an assist in sealing the cell (10) against electrolyte leakage from the anode cavity (137) and past the cathode assembly (26). Various embodiments comprehend a variety of bottom seal members (140, 142) between the bottom wall (37) and the electroactive anode material (20), typically in combination with a bottom slot (116) receiving the cathode assembly (26) adjacent an outer side wall (39) of the bottom closure member (30, 202).
대표청구항
▼
1. An elongate air depolarized electrochemical cell, having a positive end and a negative end, and a transverse cross-section disposed along a length of said cell, said elongate air depolarized electrochemical cell comprising:(a) a cathode, including an air cathode assembly extending along the lengt
1. An elongate air depolarized electrochemical cell, having a positive end and a negative end, and a transverse cross-section disposed along a length of said cell, said elongate air depolarized electrochemical cell comprising:(a) a cathode, including an air cathode assembly extending along the length of said cell; (b) an anode, including an anode cavity, and electroactive anode material in the anode cavity, the anode cavity having an open end and a closed end; (c) a separator, having an inner side wall thereof defining a side wall of the anode cavity between said electroactive anode material and said cathode assembly; (d) electrolyte dispersed in said anode, said cathode, and said separator; (e) a closure member electrically connected to said cathode assembly and forming a an end wall of said air depolarized electrochemical cell; and (f) an electrically insulating seal member extending generally across that portion of the transverse cross-section which spans the anode cavity at the closed end of the anode cavity, said seal member separating said electroactive anode material from said end wall, and providing a seal about the side wall of the anode cavity at said separator, said seal member comprising an in situ melt plug extending generally across the anode cavity at the closed end of the anode cavity, electrically separating said electroactive anode material from said end wall, said melt plug resulting from placing one or more particles of thermoplastic material at the closed end of the anode cavity, and subsequently melting the one or more particles in situ and thereby activating melt flow of the thermoplastic material thus to cover the transverse cross-section at the closed end of the anode cavity.
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