CHARGE HOLDING METHOD FOR LITHIUM-ION SECONDARY BATTERY, BATTERY SYSTEM, VEHICLE, AND BATTERY-MOUNTED DEVICE

The invention provides a lithium-ion secondary battery charge holding method capable of suppressing the capacity drop of a battery. Also provided are a battery system capable of suppressing the battery capacity drop, a vehicle having the battery system mounted therein, and a battery-mounted device....

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Bibliographic Details
Main Authors YUASA SACHIE, ABE TAKESHI, TSUJIKO AKIRA, WASADA KEIKO, HARA TOMITARO
Format Patent
LanguageChinese
English
Published 11.04.2012
Subjects
BASIC ELECTRIC ELEMENTS
CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER
CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
ELECTRICITY
GENERATION
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
SYSTEMS FOR STORING ELECTRIC ENERGY
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Summary:The invention provides a lithium-ion secondary battery charge holding method capable of suppressing the capacity drop of a battery. Also provided are a battery system capable of suppressing the battery capacity drop, a vehicle having the battery system mounted therein, and a battery-mounted device. The lithium-ion secondary battery charge holding method for charging and holding a lithium-ion secondary battery (101) using anode activating substance particles (135) made of a two-phase coexisting type anode activating substance (PM) in an anode plate (130) comprises a super-overcharging step (S7) for charging the lithium-ion secondary battery so that the SOC (state of charge) (SC) of the same may be a super SOC at or lower than 100 % but higher than a target SOC, a return-discharging step (S8) for discharging the lithium-ion secondary battery after the super-overcharging step so that the SOC may be the target SOC, and a holding step (S10).
Bibliography:Application Number: CN200980158965