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1. WO2000042673 - METHOD FOR CHARGING SECONDARY CELL AND CHARGER

Publication Number WO/2000/042673
Publication Date 20.07.2000
International Application No. PCT/JP1999/000124
International Filing Date 14.01.1999
Chapter 2 Demand Filed 31.01.2000
IPC
H01M 10/44 2006.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
10Secondary cells; Manufacture thereof
42Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
44Methods for charging or discharging
H02J 7/00 2006.01
HELECTRICITY
02GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
7Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
H01M 10/0525 2010.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
10Secondary cells; Manufacture thereof
05Accumulators with non-aqueous electrolyte
052Li-accumulators
0525Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
CPC
H01M 10/0525
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
10Secondary cells; Manufacture thereof
05Accumulators with non-aqueous electrolyte
052Li-accumulators
0525Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
H01M 10/44
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
10Secondary cells; Manufacture thereof
42Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
44Methods for charging or discharging
H02J 7/0071
HELECTRICITY
02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
7Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
007Regulation of charging or discharging current or voltage
0071with a programmable schedule
Applicants
  • FUJITSU LIMITED [JP/JP]; 1-1, Kamikodanaka 4-chome Nakahara-ku Kawasaki-shi Kanagawa 211-8588, JP (AllExceptUS)
  • YAMAMOTO, Tamotsu [JP/JP]; JP (UsOnly)
  • HORIUCHI, Hiroshi [JP/JP]; JP (UsOnly)
  • YOSHIDA, Kensuke [JP/JP]; JP (UsOnly)
  • TSUTSUMI, Masami [JP/JP]; JP (UsOnly)
  • MIYASHITA, Tsutomu [JP/JP]; JP (UsOnly)
Inventors
  • YAMAMOTO, Tamotsu; JP
  • HORIUCHI, Hiroshi; JP
  • YOSHIDA, Kensuke; JP
  • TSUTSUMI, Masami; JP
  • MIYASHITA, Tsutomu; JP
Agents
  • YOSHIDA, Minoru ; 2-32-1301, Tamatsukuri-motomachi Tennoji-ku Osaka-shi Osaka 543-0014, JP
Priority Data
Publication Language Japanese (JA)
Filing Language Japanese (JA)
Designated States
Title
(EN) METHOD FOR CHARGING SECONDARY CELL AND CHARGER
(FR) PROCEDE DE CHARGE D'UNE CELLULE SECONDAIRE ET CHARGEUR
Abstract
(EN)
A method for charging a secondary cell, particularly a lithium secondary cell, whose negative active material is a metal which is deposited during the charging. In this charging method, the charging is performed in multiple steps. The value of the charging current is small at the start of the charging, and those at the other steps than the start are larger than that at the start.
(FR)
L'invention concerne un procédé de charge d'une cellule secondaire, plus particulièrement d'une cellule secondaire de lithium dont la matière active négative se compose d'un métal déposé en cours de charge. Selon ce procédé, la charge s'effectue en plusieurs étapes. La valeur du courant de charge est petite au départ et s'amplifie en cours de charge.
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