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Paper Abstract and Keywords
Presentation 2019-05-17 14:00
Cell Voltage Equalizer with Embedded Switch Module for Lithium-Ion Batteries -- Circuit Simplification by Halving Switch Count --
Teruhisa Ueno, Koji Yoshino, Masatoshi Uno (Ibaraki Univ.)
Abstract (in Japanese) (See Japanese page) 
(in English) Cell voltage equalizers using an isolated converter and cell selection switch module have been used for lithium-ion batteries (LIBs). However, multiple bidirectional switches are required for each cell in the switch module, increasing the circuit complex and volume. This paper proposes a novel cell voltage equalizer embedding the switch module with a voltage multiplier. The switch count can be nearly halved thanks to the embedded switch module, achieving simplified circuit and reduced circuit volume. The experimental equalization test using the prototype of the proposed equalizer was performed for four LIB cells connected in series from an initially-imbalanced condition. The proposed equalizer eliminated the voltage imbalance, demonstrating the equalization performance.
Keyword (in Japanese) (See Japanese page) 
(in English) Cell Voltage Equalizer / Voltage Multiplier / Cell Selection Switch / Electric Double-Layer Capacitor / Lithium-Ion Battery / / /  
Reference Info. IEICE Tech. Rep., vol. 119, no. 32, EE2019-14, pp. 89-94, May 2019.
Paper # EE2019-14 
Date of Issue 2019-05-09 (EE) 
ISSN Print edition: ISSN 0913-5685  Online edition: ISSN 2432-6380

Conference Information
Committee EE IEE-HCA  
Conference Date 2019-05-16 - 2019-05-17 
Place (in Japanese) (See Japanese page) 
Place (in English) Kikai-Shinko-Kaikan Bldg. 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Switching power supply, New industrial and home appliance for power, others 
Paper Information
Registration To EE 
Conference Code 2019-05-EE-HCA 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Cell Voltage Equalizer with Embedded Switch Module for Lithium-Ion Batteries 
Sub Title (in English) Circuit Simplification by Halving Switch Count 
Keyword(1) Cell Voltage Equalizer  
Keyword(2) Voltage Multiplier  
Keyword(3) Cell Selection Switch  
Keyword(4) Electric Double-Layer Capacitor  
Keyword(5) Lithium-Ion Battery  
1st Author's Name Teruhisa Ueno  
1st Author's Affiliation Ibaraki University (Ibaraki Univ.)
2nd Author's Name Koji Yoshino  
2nd Author's Affiliation Ibaraki University (Ibaraki Univ.)
3rd Author's Name Masatoshi Uno  
3rd Author's Affiliation Ibaraki University (Ibaraki Univ.)
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Date Time 2019-05-17 14:00:00 
Presentation Time 30 
Registration for EE 
Paper # IEICE-EE2019-14 
Volume (vol) IEICE-119 
Number (no) no.32 
Page pp.89-94 
#Pages IEICE-6 
Date of Issue IEICE-EE-2019-05-09 

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