US Patent Application No: 2010/0052,617

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Degradation determination method for lithium-ion battery, control method for lithium-ion battery, degradation determination apparatus for lithium-ion battery, control apparatus for lithium-ion battery, and vehicle

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Abstract

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A degradation state of a lithium-ion battery is determined on the basis of information about a voltage change in the lithium-ion battery obtained in a diagnosis mode in which the lithium-ion battery is successively charged and discharged at a constant power value. The constant power value in the diagnosis mode preferably may vary with the power storage amount and the temperature of the lithium-ion battery. As the information, the degree of a voltage drop in the lithium-ion battery obtained during the discharge can be used.

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Patent Owner(s)

Patent OwnerAddressTotal Patents
DENSO CORPORATIONKARIYA-CITY AICHI-PREF10362

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Aridome, Koji Toyota, JP 12 21
Kuroda, Daisuke Kariya, JP 62 103
Matsumoto, Junichi Yokohama, JP 207 2125

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