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JPH05111184A Expired / Lapsed JP ⏱️ 0.0 years remaining

Secondary battery charger and charging method

Assignee: Japan Radio Co Ltd
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Filing: 1991-10-14
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Granted: —
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Expires: 2011-10-14
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Abstract

Abstract Translated from Japanese (57)【要約】 【目的】 負極活物質としてリチウムイオンをドープ又 は脱ドープし得る炭素質材料を用いた非水系二次電池に 対する急速充電、さらには的確で最適な充電を実現す る。 【構成】 負極活物質としてリチウムイオンをドープ又 は脱ドープし得る炭素質材料を用いた非水系二次電池を 充電するに際し、充電電流Iの大きさを一定(電流値I s)にする定電流領域Ziと充電電圧Eの大きさを一定 (電圧値Es)にする定電圧領域Zvにより充電すると ともに、定電圧領域Zvにおける充電電流Iの大きさを 検出し、電流検出値が予め設定した電流設定値に達した なら充電を終了させる。 (57) [Abstract] [Purpose] To realize rapid charging, and accurate and optimal charging of a non-aqueous secondary battery using a carbonaceous material capable of being doped or dedoped with lithium ions as a negative electrode active material. When charging a non-aqueous secondary battery using a carbonaceous material that can be doped or dedoped with lithium ions as a negative electrode active material, the charging current I has a constant magnitude (current value I s) and the constant voltage region Zv that keeps the magnitude of the charging voltage E constant (voltage value Es), and detects the magnitude of the charging current I in the constant voltage region Zv to detect the current. When the value reaches the preset current setting value, charging is terminated.

Inventors

  • 👤 Hisashi Ito
  • 👤 久 伊藤
  • 👤 Isao Kuribayashi
  • 👤 功 栗林

Bibliographic Details

Application Number —
Jurisdiction JP
Data Source google_patents
Last Synchronized 2026-11-03 13:59
CPC Classifications
Y; Y02; Y02E; Y02E60/00; Y02E60/10

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