Patent ID: 11927636
Assignee: GS YUASA INTERNATIONAL LTD.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC G  H  Y | IPC G  H

Claim 0:
1. An energy storage apparatus comprising:
an energy storage device comprising a lithium ion secondary battery;
a breaker that interrupts a current of the energy storage device;
a management device comprising a processing unit that sends an interruption command and a recovery command to switch the breaker;
a housing that houses the energy storage device; and
an external terminal provided in the housing,
wherein the breaker is provided in a conduction path connecting the energy storage device and the external terminal,
wherein the processing unit determines whether the breaker is reusable on a basis of at least two elements including
a magnitude of a short-circuit current flowed through the energy storage device, the breaker, and the external terminal at a time of an external short circuit of the external terminal,
a number of external short circuits of the external terminal taken place,
a time during which the short-circuit current flowed through the breaker, and

wherein the processing unit sends, if the breaker is determined to be reusable, the recovery command to switch the breaker from open to close and to cause the energy storage apparatus to return to a usable state.