Elimination of electrostatic adhesion between the separators of lithium battery electrode sheets through corona discharge ionic wind

Shan Jie; Liu Peiqi

doi:10.11884/HPLPB202638.250397

Article Contents

Article Navigation > High Power Laser and Particle Beams > 2026 > Accepted Manuscript

Shan Jie, Liu Peiqi. Elimination of electrostatic adhesion between the separators of lithium battery electrode sheets through corona discharge ionic wind[J]. High Power Laser and Particle Beams. doi: 10.11884/HPLPB202638.250397

Citation:

Shan Jie, Liu Peiqi. Elimination of electrostatic adhesion between the separators of lithium battery electrode sheets through corona discharge ionic wind[J]. High Power Laser and Particle Beams. doi: 10.11884/HPLPB202638.250397

Citation:

PDF( 3120 KB)

Elimination of electrostatic adhesion between the separators of lithium battery electrode sheets through corona discharge ionic wind

doi: 10.11884/HPLPB202638.250397

Shan Jie,
Liu Peiqi^,

School of Mechanical Engineering, Hebei University of Science and Technology, Shijiazhuang 050018, China

Received Date: 2025-11-04
Accepted Date: 2026-01-26
Rev Recd Date: 2026-02-19

Available Online: 2026-03-28

Abstract

Abstract

Background
The rapid growth of the new energy vehicle industry has led to a surge in retired lithium-ion batteries. Efficient separation of electrode sheets and separators is crucial for high-quality material recovery, yet electrostatic adhesion formed during long-term storage significantly hinders this process. Existing mechanical and chemical separation methods suffer from material damage, high cost, or environmental risks, creating a demand for cleaner and more efficient technologies.
Purpose
This study investigates a non-contact electrostatic elimination method based on ion wind and evaluates its effectiveness in reducing electrostatic adhesion between electrode sheets and separators in lithium battery recycling.
Methods
An electro-hydrodynamic–particle coupled numerical model was established using a sequential multiphysics coupling strategy. The model integrates corona discharge, turbulence, fluid flow, particle tracking, and electrostatic field interactions. Simulations were conducted at applied voltages of 10 kV, 13 kV, and 15 kV with a discharge duration of 20 s to analyze ion wind velocity, particle migration, surface charge decay, and electrostatic attraction force.
Results
Ionic wind velocities reached 0.089 m/s, 0.65 m/s, and 1.97 m/s at 10 kV, 13 kV, and 15 kV, respectively. The generated ion wind transported charged particles toward oppositely charged electrode sheets, promoting charge neutralization. Within 20 s, the positive surface charge decreased from 1 μC to 0.851 μC, 0.789 μC, and 0.770 μC, while the negative charge decreased from −1 μC to −0.872 μC, −0.800 μC, and −0.782 μC. The electrostatic attraction force correspondingly declined from 0.127 N to 0.093 N, 0.079 N, and 0.076 N.
Conclusions
Ionic wind generated by corona discharge effectively reduces electrostatic adhesion between electrode sheets and separators, and its neutralization performance improves with increasing discharge voltage. The findings provide a theoretical basis for optimizing electrostatic control in lithium battery recycling processes.
- battery electrode sheets and films,
- corona discharge,
- ionic wind,
- multiphysics coupling,
- electrostatic neutralization

FullText(HTML)

References(28)

References

[1]	白柳杨, 杨玉莹. 废旧锂离子电池回收利用技术研究进展[J]. 环境保护前沿, 2021, 11(5): 946-957 doi: 10.12677/AEP.2021.115114 Bai Liuyang, Yang Yuying. Research progress on recycling technology of waste lithium-ion batteries[J]. Advances in Environmental Protection, 2021, 11(5): 946-957 doi: 10.12677/AEP.2021.115114
[2]	袁青勇, 杨国功, 赵阳. 一种叠片式电池极片分离设备: 202020081958.9[P]. 2020-08-18 Yuan Qingyong, Yang Guogong, Zhao Yang. Laminated battery pole piece separation equipment: 202020081958.9[P]. 2020-08-18
[3]	王楠, 郭盛昌, 李肖肖. 电芯拆解分类回收方法及使用该方法拆解回收电芯的装置: 201210430265.6[P]. 2013-03-13 Wang Nan, Guo Shengchang, Li Xiaoxiao. Method for disassembly and classification collection of electrical core and device for disassembly and collection of electrical core by using the method: 201210430265.6[P]. 2013-03-13
[4]	徐政, 黄孝振, 纪仲光, 等. 一种废旧层叠式动力电池拆解及正负极片分离装置与方法: 201811590596. X[P]. 2020-07-03 Xu Zheng, Huang Xiaozhen, Ji Zhongguang, et al. Device and method for disassembling waste laminated power battery and separating positive and negative electrode sheets: 201811590596. X[P]. 2020-07-03
[5]	陈圳, 马贺, 李山, 等. 电晕放电离子风推力的实验研究[J]. 核聚变与等离子体物理, 2025, 45(1): 111-116 doi: 10.16568/j.0254-6086.202501018 Chen Zhen, Ma He, Li Shan, et al. Experimental study on the thrust of corona discharge ion wind[J]. Nuclear Fusion and Plasma Physics, 2025, 45(1): 111-116 doi: 10.16568/j.0254-6086.202501018
[6]	陈瑜航, 李挺. 离子风推力效应的仿真研究[J]. 航空动力学报, 2025, 40: 20220661 doi: 10.13224/j.cnki.jasp.20220661 Chen Yuhang, Li Ting. Simulation study on thrust effect of ionic wind[J]. Journal of Aerospace Power, 2025, 40: 20220661 doi: 10.13224/j.cnki.jasp.20220661
[7]	Hui U Y, Gyeong H L, Seung J J, et al. A study on ionic wind distribution and thrust characteristics according to hexagonal arrangement of corona electrodes[J]. Journal of the Korean Institute of Illuminating and Electrical Installation Engineers, 2018, 32(1): 47-52. doi: 10.5207/jieie.2018.32.1.047
[8]	Kadous N, Yanallah K, Bellebna Y, et al. Exploring the effectiveness of a novel cleaning method for solar panels using corona ionic wind[J]. Particulate Science and Technology, 2024, 42(2): 324-330. doi: 10.1080/02726351.2023.2243857
[9]	Mizeraczyk J, Kocik M, Dekowski J, et al. Measurements of the velocity field of the flue gas flow in an electrostatic precipitator model using PIV method[J]. Journal of Electrostatics, 2001, 51/52: 272-277.
[10]	Shen Heng, Yu Wanxuan, Jia Hongwei, et al. Electrohydrodynamic flows in electrostatic precipitator of five shaped collecting electrodes[J]. Journal of Electrostatics, 2018, 95: 61-70. doi: 10.1016/j.elstat.2018.08.002
[11]	Zhu Yong, Gao Mengxiang, Chen Mingxia, et al. Numerical simulation of capture process of fine particles in electrostatic precipitators under consideration of electrohydrodynamics flow[J]. Powder Technology, 2019, 354: 653-675. doi: 10.1016/j.powtec.2019.06.038
[12]	叶世乾. 增强型离子风空气净化器的研制[D]. 北京: 北京交通大学, 2022 Ye Shiqian. Development of enhanced ion air purifier[D]. Beijing: Beijing Jiaotong University, 2022
[13]	蔡坚锋. 多级针-网式离子风散热系统性能研究[D]. 广州: 广东工业大学, 2022 Cai Jianfeng. Investigation of heat transfer enhancement by multistage ionic wind cooling system using needle-mesh electrode[D]. Guangzhou: Guangdong University of Technology, 2022
[14]	Ohadi M M, Nelson D A, Zia S. Heat transfer enhancement of laminar and turbulent pipe flow via corona discharge[J]. International Journal of Heat and Mass Transfer, 1991, 34(4/5): 1175-1187.
[15]	Goodenough T I J, Goodenough P W, Goodenough S M. The efficiency of corona wind drying and its application to the food industry[J]. Journal of Food Engineering, 2007, 80(4): 1233-1238. doi: 10.1016/j.jfoodeng.2006.09.016
[16]	孟坤鹏, 李永祥, 徐雪萌, 等. 粉体除静电离子风风场对粉体包装充填影响的模拟研究[J]. 包装工程, 2019, 40(15): 170-174 doi: 10.19554/j.cnki.1001-3563.2019.15.027 Meng Kunpeng, Li Yongxiang, Xu Xuemeng, et al. Simulation study on the effect of air field of powder de-static ion on powder packing and filling[J]. Packaging Engineering, 2019, 40(15): 170-174 doi: 10.19554/j.cnki.1001-3563.2019.15.027
[17]	王伊凡, 高文超, 邵凌宇, 等. 离子风对静电除尘器中颗粒物脱除的影响机制研究[J]. 中国电机工程学报, 2022, 42(2): 663-672 doi: 10.13334/j.0258-8013.pcsee.211341 Wang Yifan, Gao Wenchao, Shao Lingyu, et al. Effects of ionic wind on particle removal in an electrostatic precipitator[J]. Proceedings of the CSEE, 2022, 42(2): 663-672 doi: 10.13334/j.0258-8013.pcsee.211341
[18]	梁月强, 李永祥, 王依, 等. 除静电离子风对粉体充填包装模拟与试验研究[J]. 粮食加工, 2024, 49(2): 7-14 doi: 10.20170/j.cnki.lsjg.1007-6395.20240202 Liang Yueqiang, Li Yongxiang, Wang Yi, et al. Simulation and experimental study on powder packing by electrostatic ion air removal[J]. Grain Processing, 2024, 49(2): 7-14 doi: 10.20170/j.cnki.lsjg.1007-6395.20240202
[19]	Lagigaldie S, Giboni N. A new device for the neutralization of static electricity on pulverulent materials[J]. Journal of Electrostatics, 1981, 10: 57-64. doi: 10.1016/0304-3886(81)90023-1
[20]	杨兰均, 王维, 林岑, 等. 电晕放电离子风实验与理论研究进展及应用发展前景[J]. 高电压技术, 2016, 42(4): 1100-1108 doi: 10.13336/j.1003-6520.hve.20160405033 Yang Lanjun, Wang Wei, Lin Cen, et al. Experimental and theoretical research progress in ionic wind produced by corona discharge and its application[J]. High Voltage Engineering, 2016, 42(4): 1100-1108 doi: 10.13336/j.1003-6520.hve.20160405033
[21]	刘沐林, 卢忠富, 张早校. 不同构型电晕放电离子风强化传热的数值模拟研究[J]. 高校化学工程学报, 2023, 37(4): 544-551 doi: 10.3969/j.issn.1003-9015.2023.04.004 Liu Mulin, Lu Zhongfu, Zhang Zaoxiao. Numerical simulation of heat transfer enhancement by corona discharge ionic wind with different configurations[J]. Journal of Chemical Engineering of Chinese Universities, 2023, 37(4): 544-551 doi: 10.3969/j.issn.1003-9015.2023.04.004
[22]	Goldman M, Goldman A. Corona discharges[M]//Hirsh M N, Oskam H J. Gaseous Electronics. New York: Academic Press, 1978: 219-290.
[23]	Rickard M, Dunn-Rankin D, Weinberg F, et al. Maximizing ion-driven gas flows[J]. Journal of Electrostatics, 2006, 64(6): 368-376. doi: 10.1016/j.elstat.2005.09.005
[24]	Crowley J M. Fundamentals of applied electrostatics[M]. New York: Wiley, 1986.
[25]	Hughes J F. Electrostatics: principles, problems and applications[J]. Physics Bulletin, 1987, 38: 424. doi: 10.1016/0160-9327(88)90094-4
[26]	Kawamoto H, Shibata T. Electrostatic cleaning system for removal of sand from solar panels[J]. Journal of Electrostatics, 2015, 73: 65-70. doi: 10.1016/j.elstat.2014.10.011
[27]	Wakatsuki Y, Sugimoto T. Charge elimination method for a charged roll using a passive type ionizer with an air assist[J]. Industrial Health, 2019, 56(6): 485-491. doi: 10.2486/indhealth.2018-0047
[28]	Jaworek A, Krupa A, Czech T. Modern electrostatic devices and methods for exhaust gas cleaning: a brief review[J]. Journal of Electrostatics, 2007, 65(3): 133-155. doi: 10.1016/j.elstat.2006.07.012