Abstract:
A middle- or large-sized battery pack having two or more hexahedral battery modules, each including a plurality of chargeable and dischargeable plate-shaped unit cells, mounted in a pack case, wherein the battery pack removes heat generated during the charge and discharge of the unit cells using an air cooling method, the unit cells of each of the battery modules are vertically stacked such that the number of the unit cells corresponds to a height of a battery pack installation space defined in a vehicle while neighboring unit cells are spaced apart from each other such that a coolant channel is defined between the respective unit cells, the pack case is formed in a shape corresponding to the battery pack installation space in the vehicle, and a coolant for removing heat from the unit cells is introduced through at least one side of the pack case.
Abstract:
A thermally managed Li-ion battery assembly including an anode and a cathode, wherein at least one of the anode and the cathode includes a thermocrystal metamaterial structure.
Abstract:
A secondary battery includes a plurality of electrode assemblies; a case receiving the electrode assemblies; at least one electrode terminal electrically connected to the electrode assemblies and being exposed out of the case; and a hollow member, which is parallel to at least one surface of each of the electrode assemblies, passing through the case.
Abstract:
Electrode structures and electrochemical cells, including lithium-sulfur electrochemical cells, are provided. The electrode structures and/or electrochemical cells described herein may include one or more protective layers comprising a polymer layer and/or a gel polymer electrolyte layer. Methods for making electrode structures including such components are also provided.
Abstract:
A secondary battery, a battery pack, and an energy storage cabinet. The secondary battery includes a case and a jelly roll arranged in an accommodating cavity of the case. Along a height direction of the secondary battery, a side of the jelly roll is provided with a bending section, a bottom wall of the case is provided with a first recessed portion recessed towards an interior of the secondary battery, and a first protruding portion is correspondingly formed at an inner side of the bottom wall. At least part of the bending section is located at a side of the first protruding portion along a width direction of the secondary battery. A contact area between the bottom wall and the jelly roll is increased, and a contact area between the heat exchange member and the secondary battery is increased, to improve heat dissipation efficiency.
Abstract:
A battery separator is provided comprising a microporous membrane comprising one or more layers of a polyolefin and a heat dissipation layer affixed to a surface of the microporous membrane, wherein the heat dissipation layer is configured to dissipate heat and reduce thermal propagation within a battery cell. The heat dissipation layer can comprise at least one of a polymer, a phase change material, and/or a high thermal conduction material configured to dissipate heat in or above a normal battery cell operating range.
Abstract:
A battery with a casing and a stack arranged within the casing. First electrodes and second electrodes are arranged alternately in the stack with the interposition of a separator. The first electrodes are electrically connected to a first battery terminal integrated into the casing, the second electrodes are electrically connected to a second battery terminal integrated into the casing. The electrodes each have an electrically conductive substrate and an active material layer on at least one side of the substrate. The substrates of the first electrodes and/or the second electrodes form a transverse projection on at least one side of the at least one associated active material layer. The transverse projections of the substrates of the first electrodes and/or the transverse projections of the substrates of the second electrodes are connected to a thermally conductive element. The at least one conductive element contacts the casing and/or forms a section thereof.
Abstract:
An electrode assembly, a secondary battery, a battery pack, and an electrical apparatus. In the electrode assembly, there are several electrode plate portions sequentially arranged in a laminated manner along its own thickness direction. During structural design, the current collector in at least one of the electrode plate portions is configured as a barrier, and by controlling the ratio between the thermal conductivity λ0 of the barrier and the thickness d0 of the barrier to be less than 3×107 W/(K*m2), the heat flux density of the barrier along the thickness direction of the electrode assembly is reduced and the thermal resistance is increased, thus forming an effective thermal barrier in the thickness direction of the electrode assembly.
Abstract:
An electrode assembly, a battery cell, a battery, and an electrical device are provided. The electrode assembly includes: a plurality of electrode plates, each of the plurality of electrode plates having a first side and a second side which are oppositely arranged along a first direction, and at least one of the first side and the second side being provided with a tab; and a separator, arranged alternately with a plurality of electrode plates. The separator is configured to be thermally insulated on at least one of the first side and the second side; and/or the separator is configured to be thermally insulated on an outermost layer of the plurality of electrode plates.
Abstract:
A battery includes: an electrode layer; a counter electrode layer, which is a counter electrode for the electrode layer; a solid electrolyte layer between the electrode layer and the counter electrode layer; and an electrode current collector electrically coupled to the electrode layer. The solid electrolyte layer includes 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. Moreover, a second density, which is of the second solid electrolyte material in the second region, is higher than a first density, which is of the first solid electrolyte material in the first region.