Ningde Amperex Technology Limited

Ting Guan

Fei Wu

Shan Zhu

A method for charging a battery includes charging the battery with a charging current at a constant current during an mth charge and discharge cycle; a first state of charge SOCof the battery when the constant current charging phase in any one charge and discharge cycle ends is the same as a standard state of charge SOC, SOC≤SOC≤SOC+k. SOCis a state of charge or a preset value of the battery at the end of the constant current charging phase during an nth charge and discharge cycle, SOCis a state of charge or a preset value of the battery at the end of the constant current charging phase during an (m−1)th charge and discharge cycle, SOC≤SOC≤SOC+k, 0≤k≤10%, and SOC+k≤100%.

Electronic device and method for charging battery

A method of charging a battery, including: in an mcharge and discharge cycle, constant-current charging a battery to a first cut-off voltage Uat a charging current, where m is any two or more integers of 1, 2, 3, . . . , x, and Uhas different values in at least two charge and discharge cycles. The method shortens fully charged time of a battery and further ensure that phenomena of lithium precipitation and overcharge do not occur on the battery, thereby prolonging a service life of the battery.

Charging method, electronic apparatus, and storage medium

A method for charging a battery, and electronic device using the method, includes charging the battery with a first charge current Iat constant current in a mth charge-discharge cycle of the battery, wherein the battery has a first cut-off voltage Vwhen the constant current charging stage of the battery is cut off in the mth charge-discharge cycle. The first charge current Iis calculated according to a formula I=I+k&#xd7;I, where, 0&#x3c;k&#x2264;1, Iis the charging current of the constant current charging stage of the battery or another battery identical to the battery in the nth charge-discharge cycle, or Ican be a preset value, n is an integer and is greater than or equal to 0, and m is an integer greater than n, the value of k is not the same in at least two charge-discharge cycles of the battery.

Charging method for a battery, and an electronic device using the charging method

A charging method for charging a battery, including the following steps: obtaining a lithium deposition potential of the anode; obtaining a first charging current Iat different states of charge (SOC) during an ncharge and discharge cycle based on the lithium deposition potential of the anode, the n is an integer greater than or equal to 0; and during an mcharge and discharge cycle, charging the battery with a second charging current I, m is an integer greater than n, and I=k&#xd7;I, 0.5&#x2264;k&#x2264;1. The present application also provides an electronic device and a storage medium. The above-mentioned charging method, electronic device and storage medium can quickly charge the battery.

Electronic device and method for charging a battery

A method of a charging battery includes the following steps: charging the battery with a first charging current in an ncharge and discharge cycle, where n is an integer greater than or equal to 0; and charging the battery with a second charging current in an (n+m)charge and discharge cycle, where m is a preset integer greater than or equal to 1, I=k&#xd7;I, 0.5&#x2264;k&#x2264;1, and Iis a third charging current, where the third charging current is a smaller one of a first maximum charging current and a second maximum charging current in a same state of charge. This application further provides an electronic apparatus and a storage medium.

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Ningde, China

Ting Guan