Method for acquiring information of energy storage device, method for controlling charging, state estimation method, life estimation method, energy storage system manufacturing method, and energy storage device management apparatus

Patent metadata

Field	Value
Publication number	US-2023231406-A1
Application number	US-202318101434-A
Country	US
Kind code	A1
Filing date	Jan 25, 2023
Priority date	Dec 19, 2017
Publication date	Jul 20, 2023
Grant date	—

Abstract

A method for acquiring information of a battery cell (11) includes a step (S101) of acquiring information pertaining to performance recovery accompanying the suspension of charging/discharging of the battery cell (11). Control pertaining to the battery cell (11) and estimation of a state of the battery cell (11) can be appropriately performed according to a type of battery cell (11).

First claim

1 . A method for acquiring information of an energy storage device, comprising:
a step of acquiring information pertaining to performance recovery; and the information pertaining to the performance recovery includes information pertaining to a type of electrode assembly incorporated in the energy storage device.

2 . The method for acquiring information of an energy storage device according to claim 1 , wherein the information pertaining to the performance recovery includes any one between the voltage, the voltage difference, and the amount of voltage recovery per unit time (the recovery speed) of the energy storage device.

3 . The method for acquiring information of an energy storage device according to claim 1 , wherein the information pertaining to the performance recovery includes information pertaining to a compression force that compresses the energy storage device.

4 . A method for controlling charging of an energy storage device, comprising:
the method for acquiring information of an energy storage device according to claim 1 ; and a step of controlling charging of the energy storage device based on information pertaining to the performance recovery.

5 . The method for controlling charging of an energy storage device according to claim 4 , further comprising:
a step of acquiring information pertaining to a suspension time until charging is started after the energy storage device is discharged based on the information pertaining to the performance recovery; and a step of causing the battery charger to start charging the energy storage device in a suspension time corresponding to the information pertaining to the suspension time after the energy storage device is discharged.

6 . The method for controlling charging of an energy storage device according to claim 5 , wherein the control unit changes the suspension time according to deterioration of the energy storage device.

7 . An energy storage device state estimation method comprising:
the method for acquiring information of an energy storage device according to claim 1 ; and a step of estimating a state of the energy storage device based on information pertaining to the performance recovery.

8 . An energy storage device life estimation method comprising:
the method for acquiring information of an energy storage device according to claim 1 ; and a step of estimating a life of the energy storage device based on information pertaining to the performance recovery.

9 . An energy storage system manufacturing method comprising:
the method for acquiring information of an energy storage device according to claim 1 ; and a step of designing an energy storage system based on information pertaining to the performance recovery and an assumed usage pattern of the energy storage device.

10 . An energy storage device management apparatus comprising:
an acquisition unit that acquires information pertaining to performance recovery of the energy storage device; and the information pertaining to the performance recovery includes information pertaining to a type of electrode assembly incorporated in the energy storage device; and a control unit that performs at least one of charge control, discharge control, state estimation, and life estimation of the energy storage device based on the information pertaining to the performance recovery acquired by the acquisition unit.

11 . An energy storage device management apparatus according to claim 10 , wherein the information pertaining to the performance recovery includes any one between the voltage, the voltage difference, and the amount of voltage recovery per unit time (the recovery speed) of the energy storage device.

12 . An energy storage device management apparatus according to claim 10 , wherein the information pertaining to the performance recovery includes information pertaining to a compression force that compresses the energy storage device.

Assignees

• Gs Yuasa Int Ltd

Inventors

• Yokoyama Junpei

Classifications

• H02J7/84

  Control of state of health [SOH] · CPC title

• H02J7/971 Primary

  the charge cycle being controlled or terminated in response to non-electric parameters · CPC title

• H02J7/007188 Primary

  Electricity · mapped topic

• H02J7/005

  Electricity · mapped topic

• H01M10/48

  Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte (constructional details of current conducting connections for detecting conditions inside cells or batteries, e.g. details of voltage sensing terminals, H01M50/569) · CPC title