Title:
密閉型リチウム二次電池とその製造方法
Document Type and Number:
Japanese Patent JP5818116
Kind Code:
B2
Abstract:
The invention provides a method capable of more simply and easily mass-producing sealed lithium secondary batteries having a stable battery performance. This method of manufacturing a sealed lithium secondary battery having an electrode assembly, an electrolyte solution and a sealable metallic or nonmetallic hard case of a given shape includes the steps of housing the electrode assembly, which includes a positive electrode and a negative electrode, and the electrolyte solution within the hard case; negatively pressurizing the interior of the hard case and sealing the hard case in the negatively pressurized state; carrying out, after the sealing step, initial charging so as to adjust the battery to a voltage at which the electrode assembly generates gases; and carrying out, after the initial charging step, main charging so as to charge the battery to a predetermined voltage. During the interval following the sealing step and up until the main charging step, the hard case is maintained in a sealed state so that the interior of the hard case is not open to the atmosphere.
Inventors:
Kobayashi
Naoki Wakamatsu
Hideki Sano
Naoki Wakamatsu
Hideki Sano
Application Number:
JP2013541570A
Publication Date:
November 18, 2015
Filing Date:
November 04, 2011
Export Citation:
Assignee:
TOYOTA JIDOSHA KABUSHIKI KAISHA
International Classes:
H01M10/052; H01M10/058; H01M10/0569; H01M10/0587
Domestic Patent References:
| JP2010080105A | ||||
| JP11102720A | ||||
| JP2011071134A | ||||
| JP2004139961A | ||||
| JP2004030957A | ||||
| JP2000058130A |
Attorney, Agent or Firm:
Makoto Abe
Michiko Oi
Hiroaki Yamane
Michiko Oi
Hiroaki Yamane