发明名称 |
Sealed lithium secondary battery and method of manufacturing same |
摘要 |
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. |
申请公布号 |
US9484603(B2) |
申请公布日期 |
2016.11.01 |
申请号 |
US201114355857 |
申请日期 |
2011.11.04 |
申请人 |
Toyota Jidosha Kabushiki Kaisha |
发明人 |
Kobayashi Kiwamu;Wakamatsu Naoki;Sano Hideki |
分类号 |
H01M10/44;H01M2/02;H01M2/08;H01M10/0525;H01M10/0565;H01M10/0587;H01M10/052 |
主分类号 |
H01M10/44 |
代理机构 |
Finnegan, Henderson, Farabow, Garrett & Dunner, LLP |
代理人 |
Finnegan, Henderson, Farabow, Garrett & Dunner, LLP |
主权项 |
1. A method of manufacturing a sealed lithium secondary battery having an electrode assembly, an electrolyte solution and a sealable hard case, comprising:
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, the hard case being maintained in a sealed state from the interval following the sealing step and UP until the main charging step so that the interior of the hard case is not open to the atmosphere. |
地址 |
Toyota-shi, Aichi JP |