An electrical energy storage device for powering portable devices such as vehicles or consumer electronics includes barriers to minimize migration of thermal energy and propagation of combustion in the rare event that electrical energy storage cells fail, burst and ignite. Thermal energy absorbing materials are contained within the electrical energy storage device. Sacrificial members are provided within the thermal energy absorbing materials. In-situ channels are formed within the thermal energy absorbing materials when the sacrificial members thermally decompose.

A system can include a processor; memory operatively coupled to the processor; lithium-ion battery cells to power at least the processor and the memory; and a thermal conduction matrix that includes crystalline carbon formations that distribute heat energy generated by the lithium-ion battery cells. Various other apparatuses, systems, methods, etc., are also disclosed.

A system can include a processor; memory operatively coupled to the processor; lithium-ion battery cells to power at least the processor and the memory; and a thermal conduction matrix that includes crystalline carbon formations that distribute heat energy generated by the lithium-ion battery cells. Various other apparatuses, systems, methods, etc., are also disclosed.

Disclosed herein is a battery cell configured to have a structure in which an electrode stack, which is configured to have a structure in which positive electrodes and negative electrodes are stacked in the height direction on the basis of the ground in the state in which separators are disposed respectively between the positive electrodes and the negative electrodes, is mounted in a battery case in a sealed state, the battery case is formed in a pipe shape having a hollow part, and the electrode stack is formed in a shape corresponding to the shape of the battery case.

Disclosed herein is a battery cell configured to have a structure in which an electrode stack, which is configured to have a structure in which positive electrodes and negative electrodes are stacked in the height direction on the basis of the ground in the state in which separators are disposed respectively between the positive electrodes and the negative electrodes, is mounted in a battery case in a sealed state, the battery case is formed in a pipe shape having a hollow part, and the electrode stack is formed in a shape corresponding to the shape of the battery case.

Provided herein are compositions made from a matrix and a hydrated salt of an acid and a Group I or II element of the Periodic Table, and electronic devices assembled therewith.

Provided herein are compositions made from a matrix and a hydrated salt of an acid and a Group I or II element of the Periodic Table, and electronic devices assembled therewith.

A solid-state heat transporting device including a heat transporting element whose uniformity of contact with one or multiple surfaces is controllable so that various amounts of heat may be transported to and from the one or multiple surfaces. The heat transporting element uses the electrocaloric effect to absorb and release the heat and the uniformity of contact is controlled using an electrostatic effect which may change the shape of the heat transporting element. In one embodiment, the heat transporting element is an electrostatically actuated P(VDF-TrFE-CFE) polymer stack achieving a high specific cooling power of 2.8 W/g and a COP of 13 (the highest reported coefficient of performance to date) when used as a cooling device.

Disclosed are battery systems for powering a laser weapon, and methods of thereof. A system includes a battery bank comprising a plurality of cylindrical battery cells electrically connected in series and parallel to form a plurality of modules, wherein an air flow path through each module defined by a spacing between a surface of each battery cell and its neighboring battery cell. Furthermore a control system is configured to provide cooling via airflow from the one or more fans to temperature control the battery modules to prevent the temperature difference between a first side of the battery module and a second side of the battery module from rising above a predetermined threshold while the laser weapon is active and consuming energy from the battery bank.

An energy storage device includes a substrate having a portion that is optically transparent in a predefined range of wavelengths, and at least one electrochemical energy storage system comprising, as from a face of the transparent portion, a stack having successively a first current collector, a first electrode, an electrolyte, a second electrode and a second current collector, the stack being covered partially by a cover characterised in that wherein at least one part of the cover has a coefficient of light absorbance greater than or equal to 80%, and preferably greater than 90%.