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 power storage module includes power storage elements and cooling members that are in contact with the power storage elements to transfer heat. The cooling member includes an enclosing member, refrigerant, and an absorbing member absorbing the refrigerant, and the enclosing member includes a first sheet member and a second sheet member that are connected in a liquid tight manner, and the refrigerant and the absorbing member are arranged within the enclosing member. The cooling member is arranged to be inclined with respect to a horizontal plane such that a section thereof being in contact with the power storage element to transfer heat is on a lower level.

A power storage module includes power storage elements and cooling members that are in contact with the power storage elements to transfer heat. The cooling member includes an enclosing member, refrigerant, and an absorbing member absorbing the refrigerant, and the enclosing member includes a first sheet member and a second sheet member that are connected in a liquid tight manner, and the refrigerant and the absorbing member are arranged within the enclosing member. The cooling member is arranged to be inclined with respect to a horizontal plane such that a section thereof being in contact with the power storage element to transfer heat is on a lower level.

The present invention relates to a temperature control system for effective cooling and heating of rechargeable battery cells, in particular lithium (Li) ion batteries, wherein the temperature control module comprises an outer shell (1) made of a polymer material, which surrounds at least one heat-conducting layer made of unidirectional carbon fibre composite (2) and has, on each of two opposing edge regions of the main surfaces thereof, a conduit (3) for conveying a heat transfer medium, the conduits (3) extending along the edge regions from one end to the other; at least two layers of unidirectional carbon fibre composite (2) arranged one above the other are preferably provided, and an intermediate layer (7) having throughflow channels (8) which connect the conduits (3) to one another is located between the layers.

The present invention relates to a temperature control system for effective cooling and heating of rechargeable battery cells, in particular lithium (Li) ion batteries, wherein the temperature control module comprises an outer shell (1) made of a polymer material, which surrounds at least one heat-conducting layer made of unidirectional carbon fibre composite (2) and has, on each of two opposing edge regions of the main surfaces thereof, a conduit (3) for conveying a heat transfer medium, the conduits (3) extending along the edge regions from one end to the other; at least two layers of unidirectional carbon fibre composite (2) arranged one above the other are preferably provided, and an intermediate layer (7) having throughflow channels (8) which connect the conduits (3) to one another is located between the layers.

A battery pack, a method of heating a battery cell and an electrical combination. The battery pack may include a housing; a battery cell; a heating element operable to provide heat to the battery cell; a temperature sensing device operable to sense a temperature of an interior of the battery pack; a heating switch operable to control whether power is provided to the heating element; and an electronic processor configured to receive a signal from the temperature sensing device, the signal indicating the temperature of the interior of the battery pack, determine that the temperature of the interior of the battery pack is less than a predetermined temperature threshold, and in response to determining that the temperature of the interior of the battery pack is less than the predetermined temperature threshold, close the heating switch to provide power to the heating element.

A battery pack and a method of inhibiting failure of a battery pack. The battery pack may generally include a housing; a battery cell supported in the housing and electrically connectable to an electrical device, power being transferrable between the battery cell and the electrical device; a resistor supported in the housing and operable to receive current from the battery cell; and an electronic processor configured to detect a failure condition of the battery pack, and, in response to detecting the failure condition of the battery pack, cause the battery cell to discharge through the resistor.

A battery module having a cooling structure with a minimized size while providing high cooling efficiency is provided. The battery module includes a front plate and a rear plate that are arranged at a front side and a rear side of a battery pack in which a plurality of battery cells is stacked and a heat-dissipating member that is arranged under the battery pack and absorbs heat generated by the battery pack. Additionally, side plates are arranged at lateral ends of the front plate and the rear plate, arranged to be in contact with respective lateral ends of the heat-dissipating member, and include a cooling channel through which a coolant circulates to cool the battery pack.

A lithium ion battery pack includes a plurality of prismatic lithium polymer cells and one or more graphite heat spreaders. Each spreader has at least two major surfaces and is made of one of a sheet of a compressed mass of exfoliated graphite particles, a graphitized polyimide sheet, or combinations thereof.

A lithium ion battery pack includes a plurality of prismatic lithium polymer cells and one or more graphite heat spreaders. Each spreader has at least two major surfaces and is made of one of a sheet of a compressed mass of exfoliated graphite particles, a graphitized polyimide sheet, or combinations thereof.