US 2026/0018693 A1 · BATTERY AND CHARGING METHOD THEREOF, BATTERY MANAGEMENT SYSTEM, AND ELECTRIC DEVICE

Abstract

This application provides a battery and a charging method thereof, a battery management system, and an electric device, capable of improving charging performance of the battery. The battery includes at least one battery cell and a battery management system. A positive electrode active material of the battery cell includes LiMPO4, and M includes element Mn and element Fe. The battery management system is configured to: when an SOC of the battery is less than or equal to a preset SOC threshold, control the battery to charge based on a first charging current so as to heat the battery during a charging process; and when the SOC of the battery is greater than the SOC threshold, control the battery to charge based on a second charging current, where the first charging current is greater than the second charging current.

Claims20

Dependent claims

A battery characterized by comprising:

at least one battery cell, wherein a positive electrode active material of the battery cell comprises LiMPO4, and M comprises element Mn and element Fe;
and
a battery management system configured to:
during at least a portion of a period when an SOC of the battery is less than or equal to a preset SOC threshold, control the battery to charge based on a first charging current so as to heat the battery during a charging process;
and
during at least a portion of a period when the SOC of the battery is greater than the SOC threshold, control the battery to charge based on a second charging current, wherein the first charging current is greater than the second charging current.

3 more elements

A charging method of a battery, wherein the battery comprises at least one battery cell, a positive electrode active material of the battery cell comprises LiMPO4, M comprises element Mn and element Fe, and the charging method comprises:

during at least a portion of a period when an SOC of the battery is less than or equal to a preset SOC threshold, controlling the battery to charge based on a first charging current, so as to heat the battery during a charging process;
and
during at least a portion of a period when the SOC of the battery is greater than the SOC threshold, controlling the battery to charge based on a second charging current, wherein the first charging current is greater than the second charging current.

Dependencies are inferred from the claim text.

Facts

Application

19/332,052Filed 18 Sep 2025

Priority

WO PCT/CN2023/09130227 Apr 2023

Published

15 Jan 2026

Term ends

Not estimatedThe source records don’t support an estimate.

Classification20 codes

H01M 10/44
Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells: methods for charging or discharging
G01R 31/387
Arrangements for measuring battery or accumulator variables: determining ampere-hour charge capacity or SoC
H01M 4/5825
Of inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFy; of polyanionic structures,…:…
H01M 10/0525
Li-accumulators: rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries

Battery and charging method thereof, battery management system, and electric device

Life of this patent

Battery and charging method thereof, battery management system, and electric device

Life of this patent

Abstract

Claims20