锂离子动力电池无损充电机  

Lossless Lithium-ion Power Battery Charger

作　　者：郁百超 李嘉明 

机构地区：[1]湖北省电力信息通讯公司,武汉430077 [2]美国三磁电子公司Visalia,CA．USA93291

出　　处：《电源学报》2011年第3期71-76,86,共7页Journal of Power Supply

摘　　要：锂离子动力电池无损充电机采用整体串联恒流、单体并联恒压的充电方法,对锂离子动力电池实现无损充电,无损的含意有两层,一是充电效率接近100%,充电功率基本无损耗;二是充、放电完全依据电池的特性曲线,电池本身在充、放电过程中完全无损害。该无损充电机免除电池管理系统,仅由简单的电路实现电池系统、充电系统、放电系统和维护管理系统的所有功能,无过充、过热、过放、过流、短路现象,充电终了时所有单体电池的端电压完全相等,无须进行均衡充电,同时无易受干扰的复杂控制芯片和软件,安全可靠,简单实用,其成本、体积、重量、功耗都是传统充电机的十分之一。The lossless Lithium-Ion power battery charger applies the charging method of combing a constant current to the entire battery pack in series with a constant voltage to the individual batteries in parallel,thus providing no loss during the charging cycle.There are two meaning with＂Lossless Charging Method＂：（1） Nearly 100% charging efficiency with no loss during the charging cycle.（2） The charging and discharging processes are based on the exact characteristic curve of the battery,eliminating any damage to the battery packs during those cycle.The＂lossless＂Lithium-Ion power battery charger needs no battery management system,which only use a simple circuit to achieve the overall charging,discharging,and maintenance.With the lossless Lithium-Ion power battery charger,there are no symptoms of overcharging,overheating,over discharging,over current and short circuit etc.within the batteries.The terminal voltage of the individual batteries are equal after the charging cycle completed,thus requiring no balancing charge or any additional complex control circuitry or software for the charger.The charger is safe,reliable,simple,practical and its overall cost,dimension,weight and power loss of the charger is approximately 10% of conventional charging system.

关 键 词：锂离子动力电池 电池管理系统 均衡充电 无损充电 

分 类 号：TM5[电气工程—电器]