The present invention relates to a battery module comprising: a plurality of battery cells disposed to overlap each other in a thickness direction thereof; a battery case configured to accommodate the battery cells and having a structure of which a lower portion is opened; and a heat dissipation member comprising a cover plate coupled to the lower portion of the battery case to support the battery cell and a heat dissipation body provided on one surface of the cover plate, on which the battery cell is supported, to dissipate heat generated in the battery cell, wherein the heat dissipation body comprises a first heat transfer material provided to be connected to a center of one surface of the cover plate in a longitudinal direction of the battery cell and a second heat transfer material provided on both portions of the first heat transfer material and having a structure aligned in a plurality of rows in the longitudinal direction of the battery cell, and the second heat transfer materials are aligned so that an interval therebetween is gradually narrowed from a center toward both ends of the battery cell to gradually improve heat dissipation performance from the center toward both the ends of the battery cell.

The present invention relates to a battery module comprising: a plurality of battery cells disposed to overlap each other in a thickness direction thereof; a battery case configured to accommodate the battery cells and having a structure of which a lower portion is opened; and a heat dissipation member comprising a cover plate coupled to the lower portion of the battery case to support the battery cell and a heat dissipation body provided on one surface of the cover plate, on which the battery cell is supported, to dissipate heat generated in the battery cell, wherein the heat dissipation body comprises first heat transfer materials, which are aligned in plurality of rows in a longitudinal direction of the battery cell on one surface of the cover plate, and the first heat transfer materials are aligned so that an interval therebetween is gradually narrowed from a center to both ends of the battery cell to gradually improve heat dissipation performance from the center to both the ends of the battery cell.

A power supply includes a battery; an inverter that controls an output voltage of the battery; an air-cooler that cools the battery and the inverter with cooling air; and a case that houses the battery, the inverter, and the air-cooler.

A power supply includes a battery; an inverter that controls an output voltage of the battery; an air-cooler that cools the battery and the inverter with cooling air; and a case that houses the battery, the inverter, and the air-cooler.

A battery includes an electrode layer, a counter electrode layer, and a solid electrolyte layer between the electrode layer and the counter electrode layer. The solid electrolyte layer has a first region containing a first solid electrolyte material and a second region containing a second solid electrolyte material. The first region is within a region where the electrode layer and the counter electrode layer face each other. With respect to the first region, the second region is positioned on an outer peripheral side of the region where the electrode layer and the counter electrode layer face each other, and is in contact with the first region. A second density, which is the density of the second solid electrolyte material in the second region, is higher than a first density, which is the density of the first solid electrolyte material in the first region.

A battery includes an electrode layer, a counter electrode layer, which is a counter electrode for the electrode layer, and a solid electrolyte layer between the electrode layer and the counter electrode layer. The solid electrolyte layer has a first region containing a first solid electrolyte material and a second region containing a second solid electrolyte material. The first region is positioned within a region where the electrode layer and the counter electrode layer face each other. The second region is positioned on an outer peripheral side of the region where the electrode layer and the counter electrode layer face each other, and is in contact with the first region. The first region includes a first projecting portion that projects outward from a region where the electrode layer and the counter electrode layer face each other, and the second region covers the first projecting portion.

Disclosed is a cartridge for battery cells, which includes: an upper cooling plate and a lower cooling plate having a plate shape and spaced to face each other, a cooling channel is formed between the upper cooling plate and the lower cooling plate; a main frame surrounding an outer circumference of the upper cooling plate and an outer circumference of the lower cooling plate with battery cells placed on an upper portion and a lower portion of the main frame; and a support portion disposed at the cooling channel and having at least one support rib protruding in at least one of an upper direction and a lower direction, the at least one support rib supporting the upper cooling plate and the lower cooling plate.

A method for controlling a temperature of a battery cell (22, 24) in a battery module (20), the method comprising the steps of: determining an initial temperature of the battery cell (22, 24); measuring a current (I) flowing into or out of the battery cell (22, 24); determining an actual temperature gradient of the battery cell (22, 24) using a thermal battery cell model described by a differential equation, for which input values comprise at least the determined initial temperature and the measured current (I); comparing the determined actual temperature gradient of the battery cell (22, 24) with a pre-defined desired temperature gradient; and automatically adjusting the current (I) flowing into or out of the battery cell (22, 24) according to a result of the comparison.

A power storage module includes: a battery block group including a plurality of battery cells; a connecting terminal portion joined to terminal surfaces of the plurality of battery cells; and a heat conductive material arranged in a manner contacting the connecting terminal portion. The heat conductive material includes at least any member of a plurality of interspersed members or a member having a clearance. The heat conductive materials are distributed more densely in a center portion of a region surrounded by an outermost peripheral edge of the battery block group than in peripheral portions surrounding the center portion in a plan view from a normal line direction of an arrangement surface of the heat conductive materials.

A power storage module includes: a battery block group including a plurality of battery cells; a connecting terminal portion joined to terminal surfaces of the plurality of battery cells; and a heat conductive material arranged in a manner contacting the connecting terminal portion. The heat conductive material includes at least any member of a plurality of interspersed members or a member having a clearance. The heat conductive materials are distributed more densely in a center portion of a region surrounded by an outermost peripheral edge of the battery block group than in peripheral portions surrounding the center portion in a plan view from a normal line direction of an arrangement surface of the heat conductive materials.