Safe　containment　and　management　of　appreciable　heat　effects　associated　with　lithium-ion　(Li-ion)　batteries　in　high-power　applications　remain　a　challenge　before　widespread　commercialization　can　occur.　In　this　study,　experiments　utilizing　Li-ion　battery　packs　were　conducted　under　sealed　conditions　with　constant　current　of　18　A.　Temperatures　were　measured　with　and　without　micro　heat　pipe　arrays　(MHPAs)　during　the　charge-discharge　cycle.　The　temperature　results　of　the　Li-ion　battery　packs　validated　the　effectiveness　of　the　cooling　system　based　on　MHPAs　in　lowering　the　temperature　increase　rate　of　battery　packs　at　1C　rate　and　minimizing　the　temperature　difference　inside　battery　packs　and　cells　during　operation.　Based　on　the　experimental　data,　the　heat　generation　and　dissipation　of　Li-ion　battery　pack　are　analyzed.　The　results　of　experiments　and　calculation　revealed　enhanced　stability　and　safety　of　battery　during　the　continuous　charge-discharge　cycle.　This　novel　MHPA　based　on　a　cooling　system　possessed　the　characteristics　of　high　energy　efficiency,　an　easy-to-manufacture　process　and　compactness.　(C)　2017　Elsevier　Ltd.　All　rights　reserved.