Lithium-ion　batteries　(LIBs)　have　attracted　widespread　attention　due　to　their　crucial　role　in　determining　the　performance　of　electric　vehicles　(EVs).　The　global　EV　LIB　supply　chain　network　is　susceptible　to　disruptions　as　the　activities　of　relevant　firms　are　increasingly　international,　intricate,　and　interdependent.　Existing　research　on　the　disruption　risks　in　the　EV　LIB　supply　chain　network　is　limited,　and　the　detected　threats　rely　on　macro-level　analyses　of　international　trade　data.　To　fill　this　gap,　this　study　constructs　a　meso-level　EV　LIB　supply　chain　network　based　on　the　supplier-buyer　relationship　data　of　significant　EV　LIB　firms　from　2016　to　2020.　The　hidden　disruption　risks　are　investigated　regarding　supply　chain　network　structural　characteristics　and　disruption　ripple　effects.　First,　the　evolution　of　critical　structural　characteristics　of　the　EV　LIB　supply　network　is　presented　to　identify　the　systematic　disruption　risks.　Second,　the　scale　and　persistence　of　the　disruption　ripple　effect　in　two　realistic　scenarios,　i.e.,　single-firm　disruption　and　interfirm　transaction　breakdown,　are　dynamically　assessed.　The　results　show　that　the　global　EV　LIB　supply　chain　network　has　a　hub-and-spoke　structure　with　a　＂robust　yet　fragile＂　characteristic　and　is　dominated　by　focal　battery　manufacturers　from　China,　Japan,　and　South　Korea.　In　addition,　hidden　risky　sources　among　EV　LIB　firms　and　interfirm　transactions　are　identified.　The　results　can　support　EV　LIB-related　firms　by　better　understanding　the　supply　chain　network　characteristics　to　cope　with　the　ripple　effects　of　disruptions.