To provide a nonaqueous electrolyte secondary battery for restraining decomposition of a nonaqueous electrolyte and degradation of a positive electrode active material and having high capacity, superior cycle performance, and high-temperature preservation characteristics.
In the nonaqueous electrolyte secondary battery having a group of electrode plates 1 winding a positive electrode plate and negative electrode plate via a separator and a nonaqueous electrolyte, and a charge and discharge control device connected with a main body of the nonaqueous electrolyte secondary battery, the positive electrode plate includes a binding agent mainly made of PTFE, a compound layer with high oxidation resistance having fine holes is arranged on at least one surface of the separator facing to the positive electrode plate, and charge terminating voltage of the charge and discharge control device is set up to be 4.3 V or more.
KITA YOSUKE
INABA YUKISHIGE
YAO TAKASHI
| JP2007059379A | 2007-03-08 | |||
| JP2001250550A | 2001-09-14 | |||
| JP2001068113A | 2001-03-16 | |||
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| JP2004039569A | 2004-02-05 |
Hiroki Naito
Daisuke Nagano