摘要:
An electricity storage module includes: an electric storage unit block that is constituted by arraying a plurality of prismatic electric storage units through a holding member; and a cooling channel that is formed between the electric storage unit and the holding member, through which a cooling medium for cooling the electric storage unit flows. A part of a cooling medium inlet opening of the cooling channel is covered so that a flow speed of a cooling medium after flowing into the cooling channel is higher than a flow speed of a cooling medium before flowing into the cooling channel.
摘要:
An electricity storage module includes a casing 110 that includes an intake port 114 through which a cooling medium is taken in, located at one end of the casing, and an outlet port 115 through which the cooling medium is let out, located at another end of the casing. A plurality of electricity storage elements 140 are arrayed from the intake port 114 toward the outlet port 115 with clearances set between the electricity storage elements, and the clearances present between the electricity storage elements 140 are altered so as to achieve a higher flow velocity for the cooling medium on the outlet port side compared to the flow velocity of the cooling medium on the intake port side.
摘要:
Equalization of a temperature distribution in a flow direction on a cooling plate 15A is facilitated so that temperatures of plural cells 10 that thermally contact with the cooling plate 15A are equalized, to reduce variability in the state of charge-discharge and the lifetimes of the respective cells 10. A battery module 1 includes a cooling plate 15A having a refrigerant channel 14 in which a refrigerant circulates, and plural cells 10 that are thermally conductively coupled onto a surface of the cooling plate 15A, in which the refrigerant channel 14 is formed with plural large diameter pipes 201A that decelerate the refrigerant, and plural small diameter pipes 202A that accelerate the refrigerant, a channel sectional area of the large diameter pipes 201A is larger than a refrigerant channel sectional area of the small diameter pipes 202A arranged on an inflow side of the large diameter pipes 201A, and a channel sectional area of the small diameter pipes 202A is smaller than a refrigerant channel sectional area of the large diameter pipes 201A arranged on the inflow side of the small diameter pipes 202A.