Active Balancing of Li-Ion Battery Cells Using Transformer as Energy Carrier

2017 ◽  
Vol 64 (2) ◽  
pp. 1251-1257 ◽  
Author(s):  
Kyung-Min Lee ◽  
Sang-Won Lee ◽  
Yoon-Geol Choi ◽  
Bongkoo Kang
Keyword(s):  
Energy Carrier ◽  
Li Ion Battery ◽  
Active Balancing ◽  
Li Ion ◽  
Battery Cells

scholarly journals Resonant Energy Carrier Base Active Charge-Balancing Algorithm

Electronics ◽  
2020 ◽  
Vol 9 (12) ◽  
pp. 2166
Author(s):  
Mohammad Kamrul Hasan ◽  
AKM Ahasan Habib ◽  
Shayla Islam ◽  
Ahmad Tarmizi Abdul Ghani ◽  
Eklas Hossain
Keyword(s):  
Energy Carrier ◽  
Resonant Circuit ◽  
Li Ion Battery ◽  
Energy Storage Devices ◽  
Storage Devices ◽  
Zero Current Switching ◽  
Zero Current ◽  
Li Ion ◽  
Balancing Efficiency ◽  
Battery Cells

This paper presents a single LC tank base cell-to-cell active voltage balancing algorithm for Li-ion batteries in electric vehicle (EV) applications. EV batteries face challenges in accomplishing fast balancing and high balancing efficiency with low circuit and control complexity. It addresses that LC resonant tank uses an energy carrier to transfer the voltage from an excessive voltage cell to the lowest voltage cell. The method requires 2N - 4 bidirectional MOSFET switches and a single LC resonant circuit, where N is the number of cells in the battery strings. The balancing speed is improved by allowing a short balancing path for voltage transfer and guarantees a fast balancing speed between any two cells in the battery string, and power consumption is reduced by operating all switches in zero-current switching conditions. The circuit was tested for 4400 mAh Li-ion battery cells under static, cyclic, and dynamic charging/discharging conditions. Two battery cells at the voltage 3.93 V and 3.65 V were balanced after 76 min, and the balancing efficiency is 94.8%. The result of dynamic and cyclic charging/discharging conditions shows that the balancing circuit is applicable for the energy storage devices and Li-ion battery cells for EV.

Investigation of the Reasons for Capacity Fading in Li-Ion Battery Cells

2014 ◽  
Vol 161 (10) ◽  
pp. A1672-A1680 ◽  
Author(s):  
Baruch Ziv ◽  
Valentina Borgel ◽  
Doron Aurbach ◽  
Jung-Hyun Kim ◽  
Xingcheng Xiao ◽  
...  
Keyword(s):  
Li Ion Battery ◽  
Capacity Fading ◽  
Li Ion ◽  
Battery Cells

Amount of Free Liquid Electrolyte in Commercial Large Format Prismatic Li-Ion Battery Cells

2019 ◽  
Vol 166 (4) ◽  
pp. A779-A786 ◽  
Author(s):  
Natalia P. Lebedeva ◽  
Franco Di Persio ◽  
Theodora Kosmidou ◽  
Denis Dams ◽  
Andreas Pfrang ◽  
...  
Keyword(s):  
Liquid Electrolyte ◽  
Li Ion Battery ◽  
Large Format ◽  
Li Ion ◽  
Battery Cells

Low-Complexity Fast Charging Strategies Based on Explicit Reference Governors for Li-Ion Battery Cells

2020 ◽  
pp. 1-12
Author(s):  
Alejandro Goldar ◽  
Raffaele Romagnoli ◽  
Luis D. Couto ◽  
Marco Nicotra ◽  
Michel Kinnaert ◽  
...  
Keyword(s):  
Low Complexity ◽  
Li Ion Battery ◽  
Fast Charging ◽  
Explicit Reference ◽  
Li Ion ◽  
Battery Cells

A feedback charge strategy for Li-ion battery cells based on Reference Governor

2019 ◽  
Vol 83 ◽  
pp. 164-176 ◽  
Author(s):  
Raffaele Romagnoli ◽  
Luis D. Couto ◽  
Alejandro Goldar ◽  
Michel Kinnaert ◽  
Emanuele Garone
Keyword(s):  
Li Ion Battery ◽  
Li Ion ◽  
Battery Cells ◽  
Reference Governor

Investigation of positive electrodes after cycle testing of high-power Li-ion battery cells

2007 ◽  
Vol 174 (2) ◽  
pp. 380-386 ◽  
Author(s):  
Hironori Kobayashi ◽  
Masahiro Shikano ◽  
Shinji Koike ◽  
Hikari Sakaebe ◽  
Kuniaki Tatsumi
Keyword(s):  
High Power ◽  
Li Ion Battery ◽  
Positive Electrodes ◽  
Li Ion ◽  
Battery Cells
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