{"title":"A fast pre-heating method for lithium-ion batteries by wireless energy transfer at low temperatures","authors":"Rui Xiong , Kui Zhang , Siyu Qu , Jinpeng Tian , Weixiang Shen","doi":"10.1016/j.etran.2023.100227","DOIUrl":null,"url":null,"abstract":"<div><p>- Lithium-ion batteries (LIBs) are required to be preheated at low temperatures in advance to ensure their normal operation. Alternating current (AC) heating is an effective heating method with little damage to the batteries. This study develops a new method to obtain onboard AC power by improving the wireless charging system based on the inductance and double capacitances-series compensation topology, which heats the battery by high-frequency AC on the secondary side of the wireless charging system. Heating experiments of a single cell under different frequencies, states of charge<span> and current amplitudes and the battery packs with different numbers of battery cells in series were conducted. Experimental results indicate that this method can heat the battery from −20 °C to 0 °C in 142s at an root mean square value<span> of 3C and an average heating rate of about 8.5 °C/min with 85 kHz AC. The proposed heating system can provide fast heating of LIBs for electric vehicles.</span></span></p></div>","PeriodicalId":36355,"journal":{"name":"Etransportation","volume":null,"pages":null},"PeriodicalIF":15.0000,"publicationDate":"2023-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"5","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Etransportation","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2590116823000024","RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENERGY & FUELS","Score":null,"Total":0}
引用次数: 5
Abstract
- Lithium-ion batteries (LIBs) are required to be preheated at low temperatures in advance to ensure their normal operation. Alternating current (AC) heating is an effective heating method with little damage to the batteries. This study develops a new method to obtain onboard AC power by improving the wireless charging system based on the inductance and double capacitances-series compensation topology, which heats the battery by high-frequency AC on the secondary side of the wireless charging system. Heating experiments of a single cell under different frequencies, states of charge and current amplitudes and the battery packs with different numbers of battery cells in series were conducted. Experimental results indicate that this method can heat the battery from −20 °C to 0 °C in 142s at an root mean square value of 3C and an average heating rate of about 8.5 °C/min with 85 kHz AC. The proposed heating system can provide fast heating of LIBs for electric vehicles.
期刊介绍：
eTransportation is a scholarly journal that aims to advance knowledge in the field of electric transportation. It focuses on all modes of transportation that utilize electricity as their primary source of energy, including electric vehicles, trains, ships, and aircraft. The journal covers all stages of research, development, and testing of new technologies, systems, and devices related to electrical transportation.
The journal welcomes the use of simulation and analysis tools at the system, transport, or device level. Its primary emphasis is on the study of the electrical and electronic aspects of transportation systems. However, it also considers research on mechanical parts or subsystems of vehicles if there is a clear interaction with electrical or electronic equipment.
Please note that this journal excludes other aspects such as sociological, political, regulatory, or environmental factors from its scope.
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