Invention Application
- Patent Title: CURRENT INTERRUPTER FOR ELECTROCHEMICAL CELLS
- Patent Title (中): 电化学电池的电流中断器
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Application No.: PCT/US9705928Application Date: 1997-04-10
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Publication No.: WO9738454A3Publication Date: 1997-12-31
- Inventor: VU VIET H , FONTAINE LUCIEN P , MCHUGH WILLIAM T , PINAULT ROBERT J , BLASI JANE A , SULLIVAN STEVEN K , JOHNSON STEPHEN S , PAQUIN GEOFFREY J , MAUS GARY K , CAMBRA LANCE E
- Applicant: DURACELL INC , TEXAS INSTRUMENTS INC , VU VIET H , FONTAINE LUCIEN P , MCHUGH WILLIAM T , PINAULT ROBERT J , BLASI JANE A , SULLIVAN STEVEN K , JOHNSON STEPHEN S , PAQUIN GEOFFREY J , MAUS GARY K , CAMBRA LANCE E
- Assignee: DURACELL INC,TEXAS INSTRUMENTS INC,VU VIET H,FONTAINE LUCIEN P,MCHUGH WILLIAM T,PINAULT ROBERT J,BLASI JANE A,SULLIVAN STEVEN K,JOHNSON STEPHEN S,PAQUIN GEOFFREY J,MAUS GARY K,CAMBRA LANCE E
- Current Assignee: DURACELL INC,TEXAS INSTRUMENTS INC,VU VIET H,FONTAINE LUCIEN P,MCHUGH WILLIAM T,PINAULT ROBERT J,BLASI JANE A,SULLIVAN STEVEN K,JOHNSON STEPHEN S,PAQUIN GEOFFREY J,MAUS GARY K,CAMBRA LANCE E
- Priority: US72058596 1996-10-02; US1515396 1996-04-10
- Main IPC: H01H35/34
- IPC: H01H35/34 ; H01H37/04 ; H01H37/54 ; H01H37/76 ; H01M2/12 ; H01M2/34
Abstract:
A current interrupt mechanism for electrochemical cells is disclosed. A thermally activated current interrupt mechanism (38) is integrated into an end cap assembly (10) for an electrochemical cell. The thermally responsive mechanism preferably includes a free floating bimetallic disk (40) or a meltable mass of material (175) to break an electrical pathway within the end cap assembly. The end cap assembly also includes integrated therein a pressure responsive current interrupt mechanism (48). The pressure responsive mechanism activates to sever electrical contact between a diaphragm (70) and a plate (80) within the end cap assembly (10) to prevent current from passing through the cell, and may include a diaphragm (70) which ruptures when there is extreme gas pressure buildup.
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