BATTERY UNIT AND METHOD FOR CONTROLLING THE SAME

To achieve, for a battery unit including a plurality of battery cells, a mechanism that switches heat transfer and heat insulation between the battery cells and a heat exchange medium with a simple configuration.SOLUTION: A battery unit including a plurality of battery cells 10 comprises a switching mechanism that switches heat transfer and heat insulation between the battery cells 10 and a heat exchange medium. The switching mechanism includes heat conduction parts 2 that each include a heat conduction material 20 performing heat exchange with the heat exchange medium and are each arranged between the adjacent battery cells 10. The switching mechanism can switch a state in which the heat conduction material 20 and the battery cells 10 are closely adhered to each other and a state in which the heat conduction material 20 and the battery cells 10 are not closely adhered to each other.SELECTED DRAWING: Figure 6 【課題】複数の電池セルを備える電池ユニットについて、電池セルと熱交換媒体との間の伝熱／断熱を切り替える機構を、簡易な構成で実現する。【解決手段】複数の電池セル１０を備える電池ユニットは、電池セル１０と熱交換媒体との間の伝熱／断熱を切り替える切替機構を備える。切替機構は、熱交換媒体と熱交換を行う熱伝導材２０を含み、隣り合う電池セル１０間にそれぞれ配置された熱伝導部２を備える。切替機構は、熱伝導材２０と電池セル１０とが密接している状態と、熱伝導材２０と電池セル１０とが密接していない状態とを切り替え可能に構成されている【選択図】図６