Abstract: A bipolar lead acid battery with increased energy density is provided. The battery includes a number of lead acid wafer cell that each comprise a negative electrode having a negative electrode plate and a negative active material positioned on the negative electrode plate, as well as a positive electrode having a positive electrode plate and a positive active material positioned on the positive electrode plate. The positive electrode plate comprises a metal foil with a conductive film thereon, such as a titanium foil or substrate with a titanium silicide coating thereon. The lead acid wafer cell also includes a separator between the negative and positive electrodes, wherein the separator includes an electrolyte for transferring charge between the negative and positive electrodes.

Abstract: Systems and methods are provided for state-of-health balanced battery management system. State-of-health (SOH) of one or more lithium-ion cells may be assessed, and based on the assessing of state-of-health (SOH), the one or more lithium-ion cells may be controlled. The controlling may include setting or modifying one or more operating parameters of at least one lithium-ion cell, and the controlling may be configured to equilibrate the state-of-health (SOH) of the one or more lithium-ion cells or to modify a state-of-health (SOH) of at least one lithium-ion cell so that the one or more lithium-ion cells have a uniform state-of-health (SOH).

Abstract: An electrode includes an electrode active material, wherein the electrode active material layer includes an electrode active material, polyvinylidene fluoride, and a conductive agent, wherein the conductive agent includes a carbon nanotube structure in which 2 to 5,000 single-walled carbon nanotube units are bonded to each other, and the carbon nanotube structure is included in an amount of 0.01 wt % to 0.5 wt % in the electrode active material layer. A secondary battery including the same, and a method of preparing the electrode are also provided.

Abstract: In an aspect a system for battery environment management in an electric aircraft, where in the system include, at least a at least a battery pack mounted within a fuselage of an electric aircraft. A battery pack may include a plurality of batteries configured to provide electrical power to the electric aircraft. A battery pack may also include a pouch cell. Adjacent to the battery pack there may be at least a channel. A channel is configured to provide a flow path for directing battery ejecta to a predetermined location.

Abstract: Provided are compositions of bundles or clumps of a reaggregated plurality of discrete carbon nanotubes with an additive whereupon the bundles or clumps disaggregate during a fabrication process that uses less than 10,000 ppm of aqueous or non-aqueous solvent. The composition can be mixed further with electroactive material to make electrodes for energy storage or collection devices.

Abstract: Provided herein are multilayer solid-state lithium ion batteries and methods of fabrication. In some embodiments, units of preformed cell elements and a current collector (of either the anode or cathode) are stacked. The preformed cell element includes a double-sided electrode, with separator/electrode on both sides of the double-sided electrode. The double-sided electrode may be an anode or a cathode. During the stacking process, the preformed cell elements are laminated to a cathode current collector or an anode current collector, as appropriate.

Abstract: In one implementation, an integrated processing tool for the deposition and processing of lithium metal in energy storage devices. The integrated processing tool may be a web tool. The integrated processing tool may comprises a reel-to-reel system for transporting a continuous sheet of material through the following chambers: a chamber for depositing a thin film of lithium metal on the continuous sheet of material and a chamber for depositing a protective film on the surface of the thin film of lithium metal. The chamber for depositing a thin film of lithium metal may include a PVD system, such as an electron-beam evaporator, a thin film transfer system, or a slot-die deposition system. The chamber for depositing a protective film on the lithium metal film may include a chamber for depositing an interleaf film or a chamber for depositing a lithium-ion conducting polymer on the lithium metal film.

Abstract: The present disclosure relates to an anode for a lithium secondary battery and a lithium secondary battery including the same, wherein the anode includes an anode current collector; a first anode active material layer formed on at least one surface of the anode current collector and containing a mixture of natural graphite and artificial graphite in a weight ratio of 13˜34:66˜87 and a first binder as the anode active material; and a second anode active material layer formed on the first anode active material layer and containing a mixture of artificial graphite and a silicon-based compound in a weight ratio of 91˜99:1˜9 and a second binder as the anode active material.

Abstract: Provided is a lithium-ion assembled battery in which two or more single cells are laminated and the DC resistance value between the single cells is low.

Abstract: A lithium-ion battery thermal management system and method based on PCM and mutually embedded fins. The thermal management system includes a battery box, a lithium-ion battery pack and a temperature detection unit are arranged in the battery box; the lithium-ion battery pack at least includes two cells, the periphery of each cell is wrapped by a battery inner shell and a battery outer shell, and PCM is filled between the battery inner shell and the battery outer shell; a plurality of fins are arranged on the battery outer shell on the opposite sides of the two adjacent cells, the fins are arranged at intervals, the fins on the opposite sides of the two adjacent cells are arranged in a staggered manner, and heat-conducting plates are connected between each fin and the battery inner shell.

Abstract: The present invention is able to provide an LGPS-based solid electrolyte characterized by: satisfying a composition of LiuSnvP2SyXz (6?u?14, 0.8?v?2.1, 9?y?16, 0<z?1.6; X represents Cl, Br, or I); and having, in X-ray diffraction (CuK?: ?=1.5405 ?), peaks at least at positions of 2?=19.80°±0.50°, 20.10°±0.50°, 26.60°±0.50°, and 29.10°±0.50°.

Abstract: The present invention provides a lithium-nickel-manganese-cobalt composite oxide in which the reactivity between a lithium raw material and a metal composite hydroxide is improved so that a high low-temperature output characteristic can be achieved, a method for manufacturing the composite oxide, and a positive electrode active material and the like without causing a problem of gelation during the paste preparation. A positive electrode active material for non-aqueous electrolyte secondary batteries, including a lithium-metal composite oxide powder including a secondary particle configured by aggregating primary particles containing lithium, nickel, manganese, and cobalt, or a lithium-metal composite oxide powder including both the primary particles and the secondary particle. The secondary particle has a solid structure inside as a main inside structure, the slurry pH is 11.5 or less, the soluble lithium content rate is 0.5 [% by mass] or less, and the specific surface area is 1.0 to 2.0 [m2/g].

Abstract: Provided are methods of preparing lithium batteries comprising a separator/electrode assembly having one or more current collector layers interposed between first and second electrode layers of the same polarity, wherein the first electrode layer is coated or laminated overlying a separator layer and the separator/electrode assembly is interleaved with an electrode comprising a current collector layer interposed between two electrode layers of opposite polarity to said first and second electrodes.

Abstract: The present disclosure belongs to the field of energy materials, and relates to a preparation method of a solid electrolyte, in particular to a method for forming a membrane by using an electrolyte to activate a porous powder material prepared by in-situ polymerization of a polymer on the surfaces of cellulose nanocrystals, and then hot-pressing. According to the technical solution of the present disclosure, cellulose nanocrystals are used as templates, the powder material with a porous structure is prepared by in-situ polymerization growth of the polymer on the surfaces of the cellulose nanocrystals, a small amount of electrolyte is used to activate the powder, and the solid electrolyte is prepared by hot-pressing membrane formation. The solid electrolyte prepared by the present disclosure has excellent electrochemical performance and mechanical performance, and a broad application prospect.

Abstract: The electrode plate includes a current collector and an electrode active material layer disposed on at least one surface of the current collector, wherein the current collector includes a support layer and a conductive layer, the conductive layer has a single-sided thickness D2 satisfying: 30 nm?D2?3 ?m; the electrode active material layer is divided into two regions, an inner region and an outer region in a thickness direction of the electrode active material layer, in which the weight percentage of the conductive agent in the inner region of the electrode active material layer is higher than the weight percentage content of the conductive agent in the outer region of the electrode active material layer, and the conductive agent in the inner region of the electrode active material layer includes at least one of a one-dimensional conductive material and a two-dimensional conductive material.

Abstract: Provided are an anode for an all solid cell and a method of fabricating the same. The anode may include an anode current collector, a conductive material of which one end contacts a part of the anode current collector, a conductive coating layer surrounding the conductive material, an anode active material which contacts the other end of the conductive material, and a solid electrolyte. The conductive coating layer may prevent the conductive material and the solid electrolyte from being electrically connected to each other.

Abstract: A ternary precursor of a lithium ion battery as well as a preparation method and preparation device thereof are provided. A chemical general formula of the ternary precursor is NixCoyMnz(OH)2, 0.5?x?0.9, 0.05?y?0.3, and x+y+z=1. A particle size D50 of a large-particle ternary precursor is 10.0-16.0 ?m, a particle size D50 of a small-particle ternary precursor is 3.0-6.0 ?m, and a span is 0.2-0.8. A nucleation and growth process of a crystal is regulated through a staged EDCF, a crystal particle size meeting specific requirements and compact particles without a cracking phenomenon can be obtained. A disc, inclined blades and an arc surface are combined, and an arc-shaped curved surface can effectively reduce a turbulence energy dissipation rate of a local area.

Abstract: The present invention relates to a composition for a gel polymer electrolyte and a lithium secondary battery including a gel polymer electrolyte formed therefrom, and particularly, to a composition for a gel polymer electrolyte, which includes a lithium salt, an organic solvent, an oligomer represented by Formula 1 and having a polymerizable substituent, a compound represented by Formula 2 and having a crosslinking reactive group, and a polymerization initiator, and a lithium secondary battery including a gel polymer electrolyte prepared by polymerization of the composition.

Abstract: The present development is a novel graphene foam with highly enriched incommensurately-stacked layers. The graphene foam is intended to be applied as active electrodes in rechargeable batteries. A 93% incommensurate graphene foam demonstrated a reversible specific capacity of 1540 mAh g-1 with a 75% coulombic efficiency, and an 86% incommensurate sample achieves above 99% coulombic efficiency exhibiting 930 mAh g-1 specific capacity.

Abstract: A battery cell thermal management assembly includes: a body structure including a plurality of cell-shaped recesses configured to receive a plurality of battery cells; and a thermal management passage positioned within the body structure and configured to circulate a thermal management fluid to extract internally-generated thermal energy from the plurality of battery cells.