发明名称 |
Lithium-ion batteries with intrinsic pulse overcharge protection |
摘要 |
The present invention relates in general to the field of lithium rechargeable batteries, and more particularly relates to the positive electrode design of lithium-ion batteries with improved high-rate pulse overcharge protection. Thus the present invention provides electrochemical devices containing a cathode comprising at least one primary positive material and at least one secondary positive material; an anode; and a non-aqueous electrolyte comprising a redox shuttle additive; wherein the redox potential of the redox shuttle additive is greater than the redox potential of the primary positive material; the redox potential of the redox shuttle additive is lower than the redox potential of the secondary positive material; and the redox shuttle additive is stable at least up to the redox potential of the secondary positive material.
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申请公布号 |
US8367253(B2) |
申请公布日期 |
2013.02.05 |
申请号 |
US20060345947 |
申请日期 |
2006.02.02 |
申请人 |
U CHICAGO ARGONNE LLC;CHEN ZONGHAI;AMINE KHALIL |
发明人 |
CHEN ZONGHAI;AMINE KHALIL |
分类号 |
H01M6/16;H01M4/02;H01M4/13;H01M4/131;H01M4/136;H01M4/1391;H01M4/58;H01M10/0567 |
主分类号 |
H01M6/16 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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