In　order　to　study　the　thermal　characteristics　of　3200　mA·h,　3.67　V　cylindrical　ternary　material　lithium　battery,　the　charge/discharge　thermal　characteristics　test　at　different　temperature　and　charge/discharge　rate　were　carried　out.　The　test　results　show　that　the　battery　temperature　rises　rapidly　with　the　increase　of　charge-discharge　current　and　the　decrease　of　the　ambient　temperature,　and　heating　lithium-ion　under　low-temperature　can　improve　the　charge/discharge　performance　of　lithium-ion　batteries.　©　2017,　Editorial　Department　of　Journal　of　Beijing　University　of　Technology.　All　right　reserved.