一种高效的多电池系统放电方法

随着移动应用的发展,移动设备对能量的需求快速增长,而作为移动设备主要能量来源的电池,其容量的增长速度相对缓慢.为了解决这个矛盾,部分移动设备采用多个电池供电来延长设备使用时间.本文充分利用电池放电特性,在简单的顺序放电的基础上提出了循环顺序放电,分析指出,由同型电池组成的电池系统循环顺序放电的寿命能渐近于单片等效电池寿命;而模拟结果表明,循环顺序放电能有效提高电池系统寿命.

A effective multiple battery system discharge schedule

With the development of mobile applications, the energy requirement of mobile devices is increasing rapidly. Batteries provide most energy of mobile devices and their capacities are growing at a relatively slow pace. To deal with the problem, some mobile devices are equipped with multiple batteries to extend their lifetime. By utilizing the battery discharge characteristic, we present the round sequential discharge which is based on the standard sequential discharge. This paper also shows that for the battery system composed of the same type batteries, the lifetime of a round sequential discharge approaches that of an equivalent monolithic battery. The simulation results verify that significant lifetime extensions are obtained by the round sequential discharge.