A battery assembly of an electronic vaporization device includes: a housing; a battery core located in the housing; and a heat dissipating element located in the housing and disposed on the battery core, the heat dissipating element dissipating heat generated by the battery core. In an embodiment, a first side of the heat dissipating element is in contact with the battery core, and a second side of the heat dissipating element is in contact with the housing.

A battery assembly of an electronic vaporization device includes: a housing; a battery core located in the housing; and a heat dissipating element located in the housing and disposed on the battery core, the heat dissipating element dissipating heat generated by the battery core. In an embodiment, a first side of the heat dissipating element is in contact with the battery core, and a second side of the heat dissipating element is in contact with the housing.

An electrode assembly, in which a positive electrode, a separator, and a negative electrode are alternately stacked to be wound, wherein the positive electrode comprises a positive electrode collector, a positive electrode active material portion that is an area, on which a positive electrode active material is stacked on the positive electrode collector, and a positive electrode non-coating portion that is an area, on which the positive electrode active material is not stacked on the positive electrode collector, the positive electrode non-coating portion comprises a first positive electrode non-coating portion disposed at a winding central portion of the electrode assembly is provided. The electrode assembly further includes a heat-dissipating tape disposed on the first positive electrode non-coating portion and includes a heat-dissipating material. A secondary battery having the electrode assembly is also provided.

An electrode assembly, in which a positive electrode, a separator, and a negative electrode are alternately stacked to be wound, wherein the positive electrode comprises a positive electrode collector, a positive electrode active material portion that is an area, on which a positive electrode active material is stacked on the positive electrode collector, and a positive electrode non-coating portion that is an area, on which the positive electrode active material is not stacked on the positive electrode collector, the positive electrode non-coating portion comprises a first positive electrode non-coating portion disposed at a winding central portion of the electrode assembly is provided. The electrode assembly further includes a heat-dissipating tape disposed on the first positive electrode non-coating portion and includes a heat-dissipating material. A secondary battery having the electrode assembly is also provided.

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, 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 method for depassivation of an energy storage device having an anode, a cathode and a core with an electrolyte, the method including: detecting that a first predetermined event related to a buildup of passivation has occurred with regard to the energy storage device; switching between a positive input voltage and a negative input voltage provided to the anode at a frequency sufficient to depassivate the anode; discontinuing the switching when a second predetermined event related to passivation has occurred.

The secondary battery disclosed herein includes: a battery case; an electrode body accommodated in the battery case; a resin-cured product with which a space between the electrode body and a bottom of the battery case is filled and which is cured; an electrolyte accommodated in the battery case. A thermal conductivity of the resin-cured product is 0.2 W/(m.Math.K) or more.

A separator for spatially separating and electrically isolating electrodes in a battery cell. The separator has a receptacle for at least one galvanic cell which includes an anode and a cathode; a structure composed of conductive material for electrically connecting the anode and cathode to one another and for making contact with the at least one galvanic cell from outside; and a duct system for forming a cooling fluid flow in the separator. At least the receptacle and the duct system are integrally formed in the separator.

A separator for spatially separating and electrically isolating electrodes in a battery cell. The separator has a receptacle for at least one galvanic cell which includes an anode and a cathode; a structure composed of conductive material for electrically connecting the anode and cathode to one another and for making contact with the at least one galvanic cell from outside; and a duct system for forming a cooling fluid flow in the separator. At least the receptacle and the duct system are integrally formed in the separator.