Charging systems, chargers

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The battery charging system addresses prolonged charging times by monitoring lithium deposition in lithium-ion batteries using current and voltage correlations during short-circuiting, ensuring efficient charging and extending battery life.

JP7764810B2Active Publication Date: 2025-11-06DENSO CORP

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Patent Information

Application Number: JP2022104710
Authority / Receiving Office: JP · JP
Patent Type: Patents
Current Assignee / Owner
Filing Date: 2022-06-29
Publication Date: 2025-11-06
Estimated Expiration: 2042-06-29

Application Information

Patent Timeline

29 Jun 2022

Application

JP2022104710

06 Nov 2025

Publication

JP7764810B2

IPC: H02J7/00; G01R31/367; G01R31/378; G01R31/392; H01M10/44

CPC: G01R31/367; G01R31/378; G01R31/392; H01M10/44; Y02E60/10; B60L58/21; B60L58/12; B60L2260/44

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Application Domain

Charging stations Batteries circuit arrangements

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AI Technical Summary

Technical Problem

Conventional chargers for lithium-ion batteries determine charging feasibility after charging has started, leading to prolonged charging times and increased user waiting time.

Method used

A battery charging system with a charger that includes a battery-side device for monitoring lithium deposition, utilizing the correlation between current and voltage behavior during short-circuiting to determine charging feasibility, and a charge control unit to manage charging based on this information.

Benefits of technology

The system reduces charging time by accurately determining charging feasibility before starting, thereby minimizing user waiting time and extending battery life through early detection of lithium deposition and other degradation factors.

✦ Generated by Eureka AI based on patent content.

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Abstract

To provide a charging system and a charger that can keep charging time from becoming long.SOLUTION: A charging system BCS comprises: a charger 120 for a battery module BM containing a lithium-ion battery; and a battery-side device that monitors a battery state including an amount of lithium-ion deposition in the lithium-ion battery. The charger 120 includes: a charging determination unit 122 that determines availability of charging of the battery module BM on the basis of battery information including the battery state acquired from the battery-side device; and a charging control unit 123 that performs charging of the battery module BM on the basis of a determination result of the charging determination unit 122.SELECTED DRAWING: Figure 14

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