US 12,191,697 B2 · Discharging control method and charging control method of rechargeable battery, and rechargeable battery

Abstract

A discharging control method and a charging control method for a rechargeable battery, and the rechargeable battery. An electric system of the rechargeable battery comprises a lithium ion cell and a discharging control circuit, and a charging control circuit. A positive electrode of the lithium ion cell is electrically connected to a common ground end (GND) of the charging and/or discharging control circuit, so that the common ground end (GND) serves as a positive electrode (P) of the charging input and/or discharging output of the rechargeable battery; a negative electrode of the lithium ion cell is electrically connected to an output end of the charging control circuit and an input end of the discharging control circuit; and the input end of the charging control circuit and the output end of the discharging control circuit are electrically connected to a negative electrode (N) of the rechargeable battery.

Claims20

Dependent claims

A discharging control method of a rechargeable battery, applied to an electrical system of the rechargeable battery, wherein the electrical system comprises a lithium-ion cell and a discharging control circuit, and the discharging control method comprises:

electrically connecting a positive electrode of the lithium-ion cell to a common ground end of the discharging control circuit, and taking the common ground end as a positive electrode of a discharging output of the rechargeable battery;
and
electrically connecting a negative electrode of the lithium-ion cell to an input end of the discharging control circuit, converting a negative-electrode discharging voltage of the lithium-ion cell to a set negative-electrode discharging voltage by the discharging control circuit, and discharging outward through an output electrode, wherein the output electrode is taken as a negative electrode of the discharging output of the rechargeable battery.

A charging control method of a rechargeable battery, applied to the rechargeable battery itself or an external electrical system independent of the rechargeable battery, wherein the electrical system comprises a charging control circuit, and the rechargeable battery comprises a lithium-ion cell, and the charging control method comprises:

electrically connecting a positive electrode of a charging input of the rechargeable battery to a common ground end of the charging control circuit, and taking the common ground end as the positive electrode of the charging input of the rechargeable battery;
and
electrically connecting a negative electrode of the charging input of the rechargeable battery to an input end of the charging control circuit, so that the charging control circuit controls an input voltage and/or an input current of a negative electrode of the rechargeable battery, and outputs the input voltage and/or the input current to the negative electrode of the lithium-ion cell, to charge the lithium-ion cell.

A rechargeable battery, comprising:

a lithium-ion cell and a controller arranged at one end of the lithium-ion cell where a negative electrode is located, wherein the controller comprises a circuit board, on which a discharging control circuit and a negative-electrode end cover are arranged;
wherein a common ground end of the discharging control circuit is electrically connected to a positive electrode of the lithium-ion cell;
wherein the negative-electrode end cover is welded on the circuit board, and is electrically connected to a discharging output end of the discharging control circuit by welding;
wherein the discharging control circuit is provided with a discharging input end, and the negative electrode of the lithium-ion cell is welded and electrically connected to the discharging input end;
and
wherein a positive electrode of the lithium-ion cell is taken as a positive electrode of the rechargeable battery, and the negative-electrode end cover is taken as a negative electrode of the rechargeable battery.

3 more elements

Dependencies are inferred from the claim text.

Discharging control method and charging control method of rechargeable battery, and rechargeable battery

Life of this patent

Discharging control method and charging control method of rechargeable battery, and rechargeable battery

Life of this patent

Abstract

Claims20