The　cell　layouts　have　a　crucial　influence　on　the　cooling　performance　of　the　battery　thermal　management　system　(BTMS).　In　this　work,　a　novel　coupled　rotation　and　wedge-shape　cell　layout　is　designed　in　the　air-cooled　structures　(ACSs).　Then　the　effects　of　h　(height　difference　of　the　adjacent　cells)　and　α　(rotation　angle　of　the　cell)　on　the　heat　dissipation　performance　in　the　designed　ACS　are　discussed,　respectively.　Afterward,　the　single　factor　and　sensitive　analysis　are　implemented　to　obtain　the　sensitive　range　of　h　and　α　and　identify　which　one　is　more　sensitive　to　the　thermal　performance.　Finally,　the　designed　cell　layouts　are　optimized　in　U-type　ACS.　Numerical　results　reveal　that　the　wedge-shape　cell　layout　is　more　suitable　to　the　U-type　ACS.　h　is　more　sensitive　to　Tmax　and　ΔT　of　the　battery　pack　than　α.　In　comparison　with　those　of　the　traditional　cell　layout,　Tmax,　ΔT　and　S　after　optimization　(h　=　−0.3　mm　and　α　=　−6°)　are　respectively　reduced　by　5.6%,　19.2%　and　67.4%.　The　proposed　cell　layout　in　this　work　can　effectively　enhance　the　cooling　performance　and　provide　valuable　guidance　for　the　design　of　air-cooled　BTMS.　©　2025