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 |
US2014315072(A1) |
申请公布日期 |
2014.10.23 |
申请号 |
US201114355857 |
申请日期 |
2011.11.04 |
申请人 |
Kobayashi Kiwamu;Wakamatsu Naoki;Sano Hideki |
发明人 |
Kobayashi Kiwamu;Wakamatsu Naoki;Sano Hideki |
分类号 |
H01M10/44;H01M10/052 |
主分类号 |
H01M10/44 |
代理机构 |
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代理人 |
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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, wherein, 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. |
地址 |
Seto-shi JP |