Invention Grant
- Patent Title: Alkaline dry battery
- Patent Title (中): 碱性干电池
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Application No.: US12159039Application Date: 2007-06-27
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Publication No.: US08080336B2Publication Date: 2011-12-20
- Inventor: Hidekatsu Izumi , Susumu Kato , Kenji Yamamoto , Shinichi Sumiyama , Hirofumi Iwaki
- Applicant: Hidekatsu Izumi , Susumu Kato , Kenji Yamamoto , Shinichi Sumiyama , Hirofumi Iwaki
- Applicant Address: JP Osaka
- Assignee: Panasonic Corporation
- Current Assignee: Panasonic Corporation
- Current Assignee Address: JP Osaka
- Agency: McDermott Will & Emery LLP
- Priority: JP2006-177896 20060628; JP2006-177898 20060628
- International Application: PCT/JP2007/062917 WO 20070627
- International Announcement: WO2008/001813 WO 20080103
- Main IPC: H01M4/13
- IPC: H01M4/13 ; H01M4/58 ; H01M6/08 ; H01M2/02 ; H01M6/04 ; H01M10/26 ; H01M2/16

Abstract:
An alkaline dry battery of this invention includes: a positive electrode including at least one of a manganese dioxide powder and a nickel oxyhydroxide powder; a negative electrode including a zinc alloy powder; a separator interposed between the positive electrode and the negative electrode; an alkaline electrolyte; and a battery case for housing the positive electrode, negative electrode, the separator, and the alkaline electrolyte. The negative electrode further includes a surfactant that adsorbs to a surface of the zinc alloy powder during a non-discharge period and promptly desorbs from the surface of the zinc alloy powder upon start of discharge without impeding ion transfer in the alkaline electrolyte.
Public/Granted literature
- US20090053595A1 ALKALINE DRY BATTERY Public/Granted day:2009-02-26
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