US Patent Application 17802195. CHARGE AND DISCHARGE METHOD FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERY, AND CHARGE AND DISCHARGE SYSTEM FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERY simplified abstract
CHARGE AND DISCHARGE METHOD FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERY, AND CHARGE AND DISCHARGE SYSTEM FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERY
Organization Name
Panasonic Intellectual Property Management Co., Ltd.
Inventor(s)
Takahiro Fukuoka of Osaka Fu (JP)
CHARGE AND DISCHARGE METHOD FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERY, AND CHARGE AND DISCHARGE SYSTEM FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERY - A simplified explanation of the abstract
This abstract first appeared for US patent application 17802195 titled 'CHARGE AND DISCHARGE METHOD FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERY, AND CHARGE AND DISCHARGE SYSTEM FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERY
Simplified Explanation
The abstract describes a method for charging and discharging a non-aqueous electrolyte secondary battery.
- The battery includes a positive electrode, a negative electrode with a negative electrode current collector, and a non-aqueous electrolyte.
- During charging, lithium metal deposits on the negative electrode, and during discharging, the lithium metal dissolves in the electrolyte.
- The charging step involves a constant-current charging at a low current density, followed by a constant-current charging at a higher current density.
- The discharging step involves discharging an amount of electricity between 20% and 80% of a full charge amount.
Original Abstract Submitted
A charging and discharging method for a non-aqueous electrolyte secondary battery. The battery includes a positive electrode, a negative electrode including a negative electrode current collector, and a non-aqueous electrolyte, in which a lithium metal deposits on the negative electrode during charge, and the lithium metal dissolves in the non-aqueous electrolyte during discharge. The method includes a charging step, and a discharging step performed after the charging step. The charging step includes a first step of performing a constant-current charging at a first current Ihaving a current density of 1.0 mA/cmor less, and a second step of performing a constant-current charging at a second current Ilarger that the first current I, after the first step. In the discharging step, an amount of electricity corresponding to 20% or more and 80% or less of a full charge amount is discharged.
