Fast charging method for battery

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United States of America Patent

PATENT NO 9793736
SERIAL NO

14810305

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Abstract

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The present invention provides a fast charging method for battery, including the steps as follows: (1) the battery is charged with a constant current I1 and the charging time is t1; (2) the battery is charged with a constant current I2 and the charging time is t2; (3) the battery is discharged with the constant current I2 and the discharging time is t3, recycling until the voltage reaches a pre-charging voltage of battery; (4) the battery is standed after the voltage reaching the pre-charging voltage of battery, and the rest time is t4, and then the battery is charged with a constant current I3 until the voltage reaching a cut-off voltage of battery, and then the battery is charged with a constant voltage until the current reaching a cut-off current I4; wherein, I21, t21, t31, I23≦I1, I4≦I2. The fast charging method provided in present invention can decrease the polarization in pulse charging phase, increase the time of whole pulse charging phase, improve the charging speed in pulse charging phase, and thus shorten the full-charging time.

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Patent Owner(s)

Patent OwnerAddress
DONGGUAN AMPEREX TECHNOLOGY LIMITEDNO 1 INDUSTRIAL WEST ROAD SONGSHAN LAKE HIGH-TECH INDUSTRIAL DEVELOPMENT ZONE DONGGUAN CITY GUANGDONG PROVINCE 523000

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Gao, Chao Dongguan, CN 140 394
Luo, Fuping Dongguan, CN 24 109
Luo, Yu Dongguan, CN 116 640
Wang, Shengwei Dongguan, CN 36 124
Zheng, Qiang Dongguan, CN 60 644

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