Lithium-ion batteries Battery management systems 4 Charging (batteries) 4 Cobalt compounds 3 Internal shorts 3 Ions 3 States of charges 3 Battery Pack 2 Cell levels 2 Center-pin 2 Cylindrical cells 2 Environmental regulations 2 Equivalent circuits 2 Finite element method 2 Finite element modelling (FEM) 2 Frictional contact 2 Impact test 2 Iron compounds 2 Lithium compounds 2 Mechanical 2 Mechanical stress 2 Multi-layered 2 Nickel oxide 2 Product design 2 Separators 2 Timing circuits 2 center-pin 2 cylindrical cell 2 frictional contact 2 impact test 2