Add-On Type Pulse Charger for Quick Charging Li-Ion Batteries

被引:11
|
作者
Kwak, Bongwoo [1 ,2 ]
Kim, Myungbok [1 ]
Kim, Jonghoon [2 ]
机构
[1] Korea Inst Ind Technol, EV Component & Mat R&D Grp, Gwangju 61012, South Korea
[2] Chungnam Natl Univ, Dept Elect Engn, Daejeon 34134, South Korea
关键词
add-on pulse charger; quick charge; pulse charging; Li-ion battery; DESIGN; ELECTROLYTE; SYSTEM;
D O I
10.3390/electronics9020227
中图分类号
TP [自动化技术、计算机技术];
学科分类号
0812 ;
摘要
In this paper, an add-on type pulse charger is proposed to shorten the charging time of a lithium ion battery. To evaluate the performance of the proposed pulse charge method, an add-on type pulse charger prototype is designed and implemented. Pulse charging is applied to 18650 cylindrical lithium ion battery packs with 10 series and 2 parallel structures. The proposed pulse charger is controlled by pulse duty, frequency and magnitude. Various experimental conditions are applied to optimize the charging parameters of the pulse charging technique. Battery charging data are analyzed according to the current magnitude and duty at 500 Hz and 1000 Hz and 2000 Hz frequency conditions. The proposed system is similar to the charging speed of the constant current method under new battery conditions. However, it was confirmed that as the battery performance is degraded, the charging speed due to pulse charging increases. Thus, in applications where battery charging/discharging occurs frequently, the proposed pulse charger has the advantage of fast charging in the long run over conventional constant current (CC) chargers.
引用
收藏
页数:14
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