Presentation	2007-03-02 Development of low self-discharge Ni-MH battery "eneloop" interchangeable with primary dry battery Shigekazu Yasuoka,
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Abstract(in English)	Mechanisms of the self-discharge of a Ni-MH battery were investigated. The self-discharge is found to be caused mainly through reduction of the positive electrode, i.e. ; by deposition including dissolution of Co, Mn ions from the negative electrode into the separator and the positive electrode, and by a "shuttle effect" with nitrogenous substances. These self-discharge mechanisms can be significantly suppressed by using a super-lattice alloy, which is free from Co and Mn as a negative electrode, and by improving the separator. Based on these results, we have developed a next generation Ni-MH battery named "eneloop" which has low self-discharge characteristics and is able to charge and discharge over 1,000 times.
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Paper #	EE2006-65,CPM2006-158
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Committee	CPM
Conference Date	2007/2/23(1days)
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Registration To	Component Parts and Materials (CPM)
Language	JPN
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Title (in English)	Development of low self-discharge Ni-MH battery "eneloop" interchangeable with primary dry battery
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1st Author's Name	Shigekazu Yasuoka
1st Author's Affiliation	Mobile Energy Company, Sanyo Electric Co., Ltd.()
Date	2007-03-02
Paper #	EE2006-65,CPM2006-158
Volume (vol)	vol.106
Number (no)	563
Page	pp.pp.-
#Pages	4
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