Abstract: A method for preparing a powderous positive electrode material comprising single crystal monolithic particles and having a general formula Li1+a((Niz(Ni1/2Mn1/2)yCox)1-k Ak)1-aO2, wherein A is a dopant, ?0.03?a?0.06, 0.05?x?0.35, 0.10?z?0.95, x+y+z=1 and k?0.05 is described. The method comprises providing a mixture comprising a Ni- and Co- bearing precursor and a Li bearing precursor, subjecting the mixture to a multiple step sintering process whereby in the final sintering step a sintered lithiated intermediate material is obtained comprising agglomerated primary particles having a primary particle size distribution with a D50 between 2.0 and 8.0 ?m, subjecting the lithiated intermediate material to a wet ball milling step to deagglomerate the agglomerated primary particles and obtain a slurry comprising deagglomerated primary particles, separating the deagglomerated primary particles from the slurry, and heat treating the deagglomerated primary particles at a temperature between 300° C. and at least 20° C.

Abstract: A negative electrode active material for a lithium secondary battery, including silicon oxide particles, wherein the silicon oxide has a full width at half maximum peak ranging between 2 and 6 in a particle size distribution and the silicon oxide particles have an average particle size (D50) of 1 ?m to 20 ?m, and a negative electrode and a lithium secondary battery comprising the same. The negative electrode active material according to the disclosure has outstanding life performance and output performance.

Abstract: An electrode assembly includes a plurality of unit cells each equipped with a pair of electrodes having different polarities. Electrode tabs protrude from the electrodes. The electrode tabs including at least one electrode parallel connection tab and at least one electrode lead connection tab. In a first unit cell of the plurality of unit cells, a current collector of a first electrode among the pair of electrodes is made of a different material from a current collector of a second electrode among the pair of electrodes having the different polarity.

Abstract: An electrolyte supply system for supplying an electrolyte to a use point, includes: a receiving storage tank configured to store the electrolyte that has been delivered; a supply storage tank to which the electrolyte is transferred from the receiving storage tank; a temperature control device configured to control temperatures of the electrolyte in the receiving storage tank and that in the supply storage tank; and a supply pipe that is laid from the supply storage tank to the use point. The electrolyte supply system is highly safe because the storage tanks are disposed in an outdoor location, and furthermore, performs a temperature control process for the receiving storage tank before the electrolyte is transferred to the supply storage tank. Thus, it can supply the electrolyte to the use point 24 hours a day even with little temperature control in the supply storage tank.

Abstract: This disclosure provides a battery, an electric device, a manufacturing method and a manufacturing system for the battery. The battery includes a battery module, a casing, and a flow guide member. The battery module includes an explosion-proof assembly. The casing accommodates the battery module. The casing includes a gas discharge passage. The gas discharge passage includes a gas inlet and a gas outlet. The flow guide member is disposed inside the casing and shields the explosion-proof assembly to form a gas guide passage. The gas guide passage is in communication with the gas inlet, for guiding gas generated by the battery module to an exterior of the casing through the gas outlet after the explosion-proof assembly is destroyed. This disclosure intends to solve the technical problem of use safety of the battery being seriously affected due to the battery being prone to catching fire quickly and then exploding.

Abstract: The present application discloses a battery and a related device, preparation method, and preparation apparatus thereof. The battery includes: a plurality of battery cells, at least one battery cell of the plurality of battery cells including a pressure relief mechanism, and the pressure relief mechanism being configured, when an internal pressure of the at least one battery cell reaches a threshold, to be actuated to release the internal pressure; and a bus component configured to electrically connect the plurality of battery cells, wherein the pressure relief mechanism and the bus component are respectively arranged on different sides of the at least one battery cell, such that emissions from the at least one battery cell are discharged in a direction away from the bus component when the pressure relief mechanism is actuated.

Abstract: Provided is a metal-air battery and a method of using the same that make it possible to simplify replacement work while also sustaining high output effectively. The metal-air battery includes a cell unit provided with a plurality of metal-air battery cells in parallel, each metal-air battery cell being configured to include a metal electrode, an air electrode disposed facing the metal electrode, and a housing that supports the metal electrode and the air electrode. The metal-air battery also includes handles for example that act as a first replacing means enabling the replacement of the entire cell unit. With this arrangement, it is possible to simplify replacement work while also sustaining high output effectively.

Abstract: This application provides a battery, an apparatus, a preparation method of battery, and a preparation apparatus of battery. The battery includes a first battery cell, a second battery cell, and a first thermal insulation member. The second battery cell is disposed adjacent to the first battery cell, an energy density of the second battery cell is less than that of the first battery cell, and the first thermal insulation member is disposed between the first battery cell and the second battery cell.

Abstract: This application provides a positive electrode plate, including a positive current collector, a positive active material layer on at least one side of the positive current collector, and a safety layer between the positive active material layer and the positive current collector. The positive active material layer includes a positive active material. The safety layer includes a binding material, a conductive material, and an overcharge-sensitive material. The overcharge-sensitive material is a polymer that includes a monosaccharide structural unit and that includes at least one of a carbonate group and a phosphate group. An average diameter x of the conductive material and a weight-average molecular weight y of the overcharge-sensitive material satisfy Formula 1.

Abstract: Described herein are battery modules comprising immersion-cooled prismatic battery cells and methods of fabricating thereof. A battery module comprises prismatic battery cells that are stacked along the primary module axis. The module also comprises top, bottom, and side covers and two end plates, collectively enclosing these battery cells. Each cover forms two fluid channels, both fluidically open to the prismatic battery cells. Furthermore, the module comprises bus bars that interconnect the cell terminals and protrude into the fluid channels formed by the top cover. One end plate comprises two fluid ports for connecting to a thermal management system. Each port is fluidically coupled to one fluid channel, formed by the top cover, and one fluid channel, formed by the bottom cover. The other end plate fluidically couples the two fluid channels, formed by the top cover, and, separately, the two fluid channels, formed by the bottom cover.

Abstract: Methods and apparatus for thermal management of batteries are disclosed herein. An example battery disclosed herein includes a housing defining a cavity and a battery cell disposed in the cavity of the housing. The battery cell has a terminal. The battery further includes a bus bar disposed in the cavity of the housing. The bus bar is coupled to the terminal. A fluid channel formed in the bus bar. The fluid channel is to receive a cooling fluid to cool the bus bar and reduce a temperature of the battery.

Abstract: A battery may include: a battery cell; a housing to accommodate the battery cell, where the housing may include a pressure relief structure to release, out of the housing, emissions induced by thermal runaway of the battery cell; and a charging connector to be electrically connected to the battery cell. The charging connector may include a body portion disposed on a side that is of the housing and that is oriented back from the battery cell, and covers the pressure relief structure. The emissions induced by thermal runaway of the battery cell are able to pass through the pressure relief structure and act on the body portion so that at least a part of the body portion may be triggered to move away from the battery cell to electrically disconnect the charging connector from the battery cell.

Abstract: A system includes a battery rack including a frame configured to support a battery tray, the frame including: an inlet fluidly coupled a fluid supply; and a set of columns fluidly coupled to the inlet, each column including perforations arranged on the column and facing an interior of the battery rack, and each column defining a channel configured to circulate fluid from the inlet to the perforations. The system also includes: a valve interposed between the fluid supply and the inlet; a sensor configured to generate a signal representing ambient condition proximal the battery rack; and a controller configured to trigger the valve to transition from a closed state to an open state in response to detecting a precursor condition to a fire event based on the signal.

Abstract: A battery cell including a case and an electrode assembly. The case having an accommodation portion in which the electrode assembly is mounted, and a sealing portion formed by sealing an outer periphery thereof. An electrode tab of the electrode assembly is electrically connected to an electrode lead that protrudes out of the case through the sealing portion. A lead film is located at a portion corresponding to the sealing portion in at least one of an upper portion or a lower portion of the electrode lead. The lead film has a dented portion recessed in an outer direction of the case and that is open toward the inside of the case. The sealing portion has an indented sealing portion that does not overlap with at least a part of the gas discharge portion on a plane.

Abstract: A battery module includes: a plurality of aligned battery cells having differently-oriented surfaces; a cell supervision circuit (CSC) configured to receive signals corresponding to the voltage and/or temperature of at least one of the battery cells; and a flexible interconnector comprising a strip-shaped flexible printed circuit (FPC). The FPC includes a first insulating main surface, a second insulating main surface opposite the first insulating main surface, and a plurality of thermally and/or electrically conducting lines between the first insulating main surface and the second insulating main surface. Each of the conducting lines has a contact portion exposed by a contact aperture in the first insulating main surface and/or in the second insulating main surface and a connecting portion for connection to the CSC, and the flexible interconnector wraps around the battery cells such that the contact portions contact the differently-oriented surfaces of the battery cells.

Abstract: Improved battery separators are disclosed herein for use in various lead acid batteries, and in particular lead acid battery strings. The improved separators, batteries, battery strings, methods, and vehicles disclosed herein provide substantially increased battery life, substantially reduced battery fail rate, and substantially higher voltage uniformity among the various batteries in a battery string. The improved battery strings may be advantageously employed in high depth of discharge applications such as electric bicycles, golf carts (or golf cars), uninterrupted power supply (UPS) backup power battery strings, and the like.

Abstract: The present invention relates to an all-solid-state battery including: a battery supporting member including an oxide-based solid electrolyte of a garnet structure; a positive electrode disposed on a first surface of the battery supporting member; and a negative electrode disposed on a second surface of the battery supporting member, wherein the positive electrode includes: a positive active material layer in contact with the first surface of the battery supporting member and including a positive active material represented by a predetermined chemical formula, and an ion conductor; and a positive current collector disposed on the positive active material layer, a manufacturing method thereof, a secondary battery including the same, and a monolithic battery module including the same.

Abstract: This application provides a battery, an electric apparatus, and a method and a device for preparing battery, relating to the field of battery technologies. The battery includes a battery cell having an electrode terminal; a fire prevention pipeline, configured to accommodate a fire prevention medium; and a fastener, configured to fasten the fire prevention pipeline. The fastener is connected to the electrode terminal.

Abstract: This application discloses a soft-pack battery module, including at least two battery stack layers stacked in a thickness direction of battery cells, where each battery stack layer includes a battery cell and a connecting piece connected to a tab of the battery cell, the connecting piece includes a first section and a second section, the first section is connected to the tab, the second section is connected to the first section, the second section is arranged by a side of the first section, the second section extends toward a large surface of the battery cell and covers at least a part of the large surface of the battery cell, and an insulating material is provided on a side of the second section away from the large surface of the battery cell.

Abstract: A secondary battery and a battery pack including the secondary battery are disclosed. According to one aspect of the present invention, the secondary battery includes: a waterproof part configured to surround at least a portion of a circumference of the electrode assembly so that a gas within the exterior passes through the waterproof part, but a liquid within the exterior does not pass through the waterproof part; and a vent part provided in an inner surface of the exterior to provide a path through which the gas within the exterior is discharged to the outside when an internal pressure of the exterior exceeds a certain value.