| 摘要 |
A charging system is provided which includes: a secondary battery which includes a heat-resistant member having a heat-resistance property between a negative electrode and a positive electrode thereof; a charging-voltage supply section which supplies a charging voltage for charging the secondary battery; a charge control section which controls the operation of the charging-voltage supply section on the basis of a reference voltage corresponding to the voltage between the negative electrode and the positive electrode in a full-charge state where the lithium-reference electric potential of the negative electrode is substantially zero volts; and a mode-setting acceptance section which chooses and accepts the setting of either of an ordinary charge mode and a high-voltage charge mode, in which if the mode-setting acceptance section accepts the setting of the ordinary charge mode, then the charge control section allows the charging-voltage supply section to supply, to the secondary battery, a first set voltage equal to, or below, the reference voltage as the charging voltage, and if the mode-setting acceptance section accepts the setting of the high-voltage charge mode, then the charge control section allows the charging-voltage supply section to supply, to the secondary battery, a second set voltage above the reference voltage as the charging voltage, so that the secondary battery is charged.
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