The disclosure provides a method for manufacturing a separator, comprising the steps of: providing a nonporous precursor substrate; coating a heat-resistant slurry on a surface of the nonporous precursor substrate to form a heat-resistant coating layer, wherein the heat-resistant slurry comprises a binder and a plurality of inorganic particles; and stretching the nonporous precursor substrate with the heat-resistant coating layer formed thereon to generate a separator comprising a porous substrate and a heat-resistant layer; wherein the heat-resistant layer is disposed on the surface of the porous substrate in the range of 10% to 90% of the total surface area of the porous substrate.

A thermal management system for removing waste heat from a battery cell. The thermal management system includes a unit cell that includes a vapor chamber including an evaporator surface and a condenser surface. The evaporator surface and the condenser surface are fluidly connected by a wick. The unit cell also includes a phase change material (PCM) shell encapsulating a PCM. The evaporator surface is thermally coupled to the battery cell and absorbs waste heat generated by the battery cell. The condenser surface is thermally coupled to the PCM and rejects waste heat to the PCM.

An accumulator for a hybrid or electric vehicle may include a housing having two shell-shaped housing parts abutting one another in a Z direction and forming an interior of the housing, a plurality of battery modules having a plurality of battery cells arranged in the interior of the housing, and at least one cooling device having a cooling chamber, through which a fluid is flowable, a fluid inlet for introducing the fluid into the cooling chamber, and a fluid outlet for discharging the fluid from the cooling chamber. The cooling chamber may be formed in a respective one of the two housing parts via a heat-conducting limiting plate, which may be spaced apart from a bottom of the respective housing part and may be aligned transversely to the Z direction and may separate the cooling chamber from the interior in a fluid-tight manner inside the respective housing part. At least some of the battery modules may abut on the limiting plate facing away from the cooling chamber so as to transfer heat.

A battery module includes: a plurality of aligned battery cells, each of the battery cells including a cell case, a cap assembly on the cell case, a negative cell terminal, and a positive cell terminal; a plurality of busbars over the cap assemblies, each of the busbars electrically connecting the cell terminals of at least two of the battery cells to each other; and a cell supervision circuit carrier configured to accommodate a cell supervision circuit, the cell supervision circuit carrier comprising a connector configured to establish data communication with the cell supervision circuit. The cell supervision circuit carrier electrically connects the cell supervision circuit to the negative cell terminal of one of the battery cells and to the cell cases of at least some of the other battery cells from among the plurality of battery cells.

A system for managing a battery for an eco-friendly vehicle may include: a main battery; an assistant battery; a main battery temperature management unit that is configured to maintain temperature of the main battery within a predetermined temperature range; an assistant battery charge unit that is configured to charge the assistant battery; a first measuring unit that is configured to measure a state of the assistant battery; a second measuring unit that is configured to measure a state of the main battery; and a that is configured to make controller that is configured to make the assistant battery be charged when the state of the assistant battery measured by the first measuring unit satisfies a predetermined charge condition, and that is configured to make the temperature of the main battery enter a predetermined temperature range when the temperature of the main battery measured by the second measuring unit is out of the predetermined temperature range.

An alkali-ion battery is provided that includes an anhydrous alkaline salt as an active cathode material, where the alkaline salt may be, for example, a lithium sulfate salt, sodium sulfate salt or potassium sulfate salt, as the active cathode material. In some such batteries, the inter-conversion of sulfate to persulfate occurs during charging and discharging of the battery, respectively.

A battery pack has bus bars at one end, freeing the other end of the battery pack for cooling or other arrangements. A plurality of battery cells has first terminals of the battery cells at first ends of the battery cells. Portions of second terminals of the battery cells are at the first ends of the battery cells. The first ends of the battery cells are in a coplanar arrangement. A plurality of bus bars is assembled proximate to the first ends of the battery cells. The bus bars are coupled to the first terminals and the second terminals of the battery cells at the first ends of the battery cells to place the battery cells in one of a series connection, a parallel connection or a series and parallel connection.

A cap assembly of a power battery comprises: a cap plate, a first electrode terminal provided to the cap plate, and a resistance member electrically connected to the cap plate and the first electrode terminal. The resistance member comprises: a heat-resistant insulating base body positioned between the cap plate and the first electrode terminal; and a heat-resistant metal layer provided to a circumferential side of the heat-resistant insulating base body. The heat-resistant metal layer and the cap plate and the first electrode terminal are electrically connected to form a conductive path. The formed conductive path is a curved path, therefore the resistance value of the resistance member can be controlled by controlling the conductive path.

Flexible batteries, comprising at least two cells, wherein at least two cells are connected by flexible connectors, such that the battery can be bent. The batteries can be incorporated into clothing and gear.

The present disclosure relates to the field of energy storage materials, and particularly, to an electrolyte and an electrochemical device. The electrolyte includes an additive A and an additive B, the additive A is selected from a group consisting of multi-cyano six-membered N-heterocyclic compounds represented by Formula I-1, Formula I-2 and Formula I-3, and combinations thereof, and the additive B is at least one unsaturated bond-containing cyclic carbonate compound. The electrochemical device includes the above electrolyte. The electrolyte of the present disclosure can effectively passivate surface activity of the positive electrode material, inhibit oxidation of the electrolyte, and effectively reduce gas production of the battery, while an anode SEI film can be formed to avoid a contact between the anode and the electrode and thus to effectively reduce side reactions. ##STR00001##