A Review on the State-of-Health Estimation for Lithium-ion Batteries
Lithium-ion batteries have been widely used in various fields such as electric vehicles,energy storage systems,and aerospace.In actual operation,the state-of-health estimation is crucial for maintaining the safe and stable operation of lithium-ion battery.In addition,the accurate state-of-health estimation can also pro-vide important guidance for battery operation,which is conducive to extending the service life of battery.Howev-er,the ever-changing environmental conditions during operation and the complex electrochemical mechanisms inside the battery pose significant challenges to the health estimation for lithium-ion battery.This article reviews recent researches on the state-of-health estimation for lithium-ion battery.Firstly,the basic working princi-ples and aging mechanisms of lithium-ion battery are analyzed and summarized,and common methods for defi-ning health states are summarized.In addition,existing health state estimation methods were classified and sum-marized based on different usage principles,and the advantages and disadvantages of different methods were com-pared in detail.At the same time,several commonly used publicly available datasets for lithium-ion battery were organized.Finally,analysis and discussion were conducted on the current issues in state-of-health estimation research,and future research directions were discussed.In summary,this article aims to provide important guid-ance for future state-of-health estimation of lithium-ion battery,thereby promoting the development of lithium-ion battery technology.
lithium-ion batterystate-of-health estimationstate monitoringstate of chargebattery safety
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