The purpose of the present invention is to realize a secondary battery charging system with which it is possible to minimize reduction in capacity retention rate and charge-discharge efficiency of a secondary battery. The charging system (10) according to one embodiment of the present invention comprises: a secondary battery (14); a charger (30) for charging the secondary battery; a means for calculating a charging capacity of the secondary battery; and a charging control means (23) which performs control so as to cause the charger to carry out a first charging step for charging the secondarybattery until a first voltage is reached and a second charging step for charging the secondary battery at a constant voltage of the first voltage. The charging control means (23) stops charging when the charging capacity of the secondary battery reaches a charge termination capacity which is set to fall within a range less than a full-charge capacity that is determined on the basis of the first voltage of the secondary battery.
本公开的目的在于,实现能够抑制二次电池的容量维持率和充放电效率的下降的二次电池的充电系统。本公开的一个方式涉及的充电系统(10)包括:二次电池(14);充电器(30),对二次电池进行充电;计算二次电池的充电容量的单元;和充电控制单元(23),将充电器控制为进行到达到第1电压为止对二次电池进行充电的第1充电步骤、和以第1电压的恒定电压对二次电池进行充电的第2充电步骤。充电控制单元(23)在二次电池的充电容量达到设定在小于二次电池的以第1电压基准的满充电容量的范围内的充电结束容量的情况下,结束充电。
SECONDARY BATTERY CHARGING SYSTEM
二次电池的充电系统
2021-03-30
Patent
Elektronische Ressource
Chinesisch
IPC: | H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / G01R Messen elektrischer Größen , MEASURING ELECTRIC VARIABLES / H01M Verfahren oder Mittel, z.B. Batterien, für die direkte Umwandlung von chemischer in elektrische Energie , PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY |
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