Abstract: Manufacturing a lithium-ion battery includes assembling the lithium-ion battery; and performing an initial charging on the lithium-ion battery. The lithium-ion battery includes a positive electrode, a negative electrode, and an electrolyte; the negative electrode contains a negative electrode active material containing a precursor of a silicon material, the precursor having a composition represented by SiOx where a relationship of 0<x<2 is satisfied. The initial charging includes a first step where the charging is performed to an intermediate voltage at a first current rate, and a second step where the charging is performed from the intermediate voltage to a maximum voltage at a second current rate. The first current rate is lower than 0.5 C; the second current rate is higher than the first current rate; and the intermediate voltage is 3.75 V or higher.

Abstract: Resin-adhered graphite particles are obtained by causing a modified novolac-type phenolic resin to adhere to graphite particles. At least part of surfaces of the graphite particles is coated with a carbonaceous coating by heating the resin-adhered graphite particles in a non-oxidizing atmosphere at 900 to 1,500° C. to carbonize the modified novolac-type phenolic resin. Arylene groups having hydroxy groups account for 5 to 95 mol % of arylene groups constituting the modified novolac-type phenolic resin. The obtained carbonaceous substance-coated graphite particles exhibit excellent battery properties when used as a negative electrode material for a lithium ion secondary battery.

Abstract: A semiconductor device structure and method for forming the same is disclosed. The structure incudes a silicon substrate having at least one trench disposed therein. An electrical and ionic insulating layer is disposed over at least a top surface of the substrate. A plurality of energy storage device layers is formed within the one trench. The plurality of layers includes at least a cathode-based active electrode having a thickness of, for example, at least 100 nm and an internal resistance of, for example, less than 50 Ohms/cm2. The method includes forming at least one trench in a silicon substrate. An electrical and ionic insulating layer(s) is formed and disposed over at least a top surface of the silicon substrate. A plurality of energy storage device layers is formed within the trench. Each layer of the plurality of energy storage device layers is independently processed and integrated into the trench.

Abstract: The present invention pertains to a lithiated polyamide-imide (LiPAI) polymer, a method of making the LiPAI, an electrode-forming composition comprising the LiPAI, a method of making a negative electrode with the electrode-forming composition; and a lithium-ion battery comprising the negative electrode.

Abstract: A silicon and sulfur battery and methods are shown. In one example, the silicon and sulfur battery includes a lithium chip coupled to a silicon electrode. In some examples, the silicon electrode is formed from silicon nanoparticles and carbon.

Abstract: Interfacial films, which are both electronic conducting and ion conducting, for anode films are provided. The one or more protective films described herein may be mixed conduction materials, which are both electronic conducting and ion-conducting. The one or more protective films described herein may include materials selected from lithium transition metal dichalcogenides, Li9Ti5O12, or a combination thereof. The lithium transition metal dichalcogenide includes a transition metal dichalcogenide having the formula MX2, wherein M is selected from Ti, Mo, or W and X is selected from S, Se, or Te. The transition metal dichalcogenide may be selected from TiS2, MoS2, WS2, or a combination thereof. The lithium transition metal dichalcogenide may be selected from lithium-titanium-disulfide (e.g., LiTiS2), lithium-tungsten-disulfide (e.g., LiWS2), lithium-molybdenum-disulfide (e.g., LiMoS2), or a combination thereof.

Abstract: Provided is a lithium secondary battery including a positive electrode layer composed of a lithium complex oxide sintered body, a negative electrode layer composed of a titanium-containing sintered body, a ceramic separator interposed therebetween, an electrolytic solution, and an exterior body including a closed space, which accommodates the positive electrode layer, the negative electrode layer, the ceramic separator, and the electrolytic solution, wherein the positive electrode layer, the ceramic separator, and the negative electrode layer are bonded together, a ratio C/A of a capacity C of the positive electrode layer to a capacity A of the negative electrode layer is 1.03 to 2.30, a ratio Tc/Ta of a thickness Tc of the positive electrode layer to a thickness Ta of the negative electrode layer is 0.50 to 2.00, the thickness Tc is 50 to 1000 ?m, and the thickness Ta is 50 to 1200 ?m.

Abstract: A battery module is provided with: battery cells comprising all-solid-state batteries having a positive electrode layer, a negative electrode layer, and a solid electrolyte layer; a support plate on which the battery cells are mounted; and a cooling medium channel through which a cooling medium for cooling the support plate flows, wherein electrode terminals are provided so as to project from one surface of the battery cells, bus bars capable of electrically connecting to the electrode terminals are provided on a battery cell mounting surface, the bus bars are in thermal contact with the support plate, and the battery cells are mounted on the support plate by causing one surface of the battery cells to face the cell mounting surface and electrically connecting the electrode terminals to the bus bars.

Abstract: Systems and methods for anisotropic expansion of silicon-dominant anodes may include a cathode, an electrolyte, and an anode, where the anode may include a current collector and an active material on the current collector. An expansion of the anode during operation may be configured by a roughness and/or thickness of the current collector, a metal used for the current collector, and/or a lamination process that adheres the active material to the current collector. The expansion of the anode may be more anisotropic for thicker current collectors. A thicker current collector may be 10 ?m thick or greater. The expansion of the anode may be more anisotropic for more rigid materials used for the current collector. A more rigid current collector may include nickel and a less rigid current collector may include copper. The expansion of the anode may be more anisotropic for a rougher surface current collector.

Abstract: Stable solutions comprising high concentrations of charged coordination complexes, including iron hexacyanides are described, as are methods of preparing and using same in chemical energy storage systems, including flow battery systems. The use of these compositions allows energy storage densities at levels unavailable by other iron hexacyanide systems.

Abstract: A particle with a yolk-shell structure including a shell including carbon; and a care including silicon (Si) provided inside the shell, wherein at least a part of the shell is spaced apart from the core, and the particle with the yolk-shell structure has a micropore volume of 0.15 cm3/g or less, and a method for preparing the same.

Abstract: A positive electrode material consists of composite particles. Each of the composite particles includes a base material particle, a film, and a carbon nanotube. The film covers at least a part of a surface of the base material particle. The base material particle includes a positive electrode active material. The film includes a boron oxide. The carbon nanotube includes a first portion and a second portion. The first portion is buried in the film. The second portion is exposed on a surface of the film.

Abstract: Resin-adhered graphite particles are obtained by causing a modified novolac-type phenolic resin to adhere to graphite particles. At least part of surfaces of the graphite particles is coated with a carbonaceous coating by heating the resin-adhered graphite particles in a non-oxidizing atmosphere at 900 to 1,500° C. to carbonize the modified novolac-type phenolic resin. Arylene groups having hydroxy groups account for 5 to 95 mol % of arylene groups constituting the modified novolac-type phenolic resin. The obtained carbonaceous substance-coated graphite particles exhibit excellent battery properties when used as a negative electrode material for a lithium ion secondary battery.

Abstract: The present application provides a positive electrode and a lithium-ion battery. The positive electrode comprises a current collector; a first active material layer comprising a first active material; and a second active material layer; wherein the first active material layer is arranged between the current collector and the second active material layer, the first active material layer comprises a first active material, and the first active material is at least one selected from a group consisting of a modified lithium transition metal oxide positive electrode material and a modified lithium iron phosphate. The positive electrode of the present application helps to improve the thermal stability of the lithium-ion battery, and the improvement of the thermal stability may reduce the proportion of the thermal runaway when the lithium-ion battery is internally short-circuited so that the safety performance of the lithium-ion battery is improved.

Abstract: Aspects of a modular clip for an electric battery module, a battery module comprising multiple such modular clips, and a battery pack comprising multiple battery modules are provided. The modular clip includes a housing configured to receive a plurality of battery cells. The modular clip may further comprise at least one interconnect plate. The modular clip may further comprise a retainer plate including a plurality of top cell recesses, each of the plurality of top cell recesses may comprise an opening to enable wire bonds between electrical terminals of a battery cell and the at least one interconnect plate. The battery module may comprise a plurality of wire bonds between at least one voltage sensing PCB and the at least one interconnect plate.

Abstract: Provided are a positive current collector, a preparation method thereof, a positive electrode sheet, a cell and a battery. The positive current collector. The positive current collector includes a substrate film and a functional layer arranged on a surface of the substrate film. The substrate film has a first surface and a second surface opposite to the first surface. The first surface has a first functional layer provided thereon, and the second surface has a second functional layer provided thereon. The first functional layer includes a bonding layer, a current conducting layer, and a protective layer that are stacked sequentially. The bonding layer is arranged on the first surface. The first functional layer is divided to have a first functional segment and a second functional segment in a direction parallel to the first surface. The first functional segment has a thickness greater than a thickness of the second functional segment.

Abstract: Disclosed is a negative electrode active material which includes: a silicon oxide composite including i) Si, ii) a silicon oxide represented by SiOx (0<x?2), and iii) magnesium silicate containing Si and Mg; and a carbon coating layer positioned on the surface of the silicon oxide composite and including a carbonaceous material, wherein X-ray diffractometry of the negative electrode active material shows peaks of Mg2SiO4 and MgSiO3 at the same time and shows no peak of MgO; the ratio of peak intensity, I (Mg2SiO4)/I (MgSiO3), which is intensity I (Mg2SiO4) of peaks that belong to Mg2SiO4 to intensity I (MgSiO3) of peaks that belong to MgSiO3 is smaller than 1, the peaks that belong to Mg2SiO4 are observed at 2?=32.2±0.2°, and the peaks that belong to MgSiO3 are observed at 2?=30.9±0.2°.

Abstract: The present disclosure aims to provide a nonaqueous electrolyte secondary battery having excellent discharge load characteristics and excellent long-term cycle characteristics. A nonaqueous electrolyte secondary battery which is one example of an embodiment of the present disclosure includes a positive electrode, a negative electrode (30), separators, and a nonaqueous electrolyte. The negative electrode (30) includes a negative electrode collector (31) and a negative electrode mixture layer (32) formed on the negative electrode collector (31). The negative electrode mixture layer (32) includes a first mixture layer primarily composed of a carbon-coated graphite (35) and a second mixture layer (34) primarily composed of a graphite (36), the first mixture layer (33) is disposed at a surface side of the negative electrode mixture layer (32), and the second mixture layer (34) is disposed at a side of the negative electrode collector (31).

Abstract: A thermal formation sintering compound containing a binder, a sinterable powder material and a pore formation material, for formation into a predetermined shape in a thermal formation step, removal of the binder in a degreasing step, and sintering of the powder material in a sintering step is provided. The binder contains a low-temperature draining component which melts in the thermal formation step, begins draining at a temperature lower than a draining temperature of the pore formation material, and drains at a temperature lower than a temperature at which the pore formation material drains; and a high-temperature draining component which melts in the thermal formation step, begins draining after the pore formation material begins draining, and drains at a temperature higher than does the pore formation material.

Abstract: The embodiments of the present application relate to an electrode sheet and a battery cell including the same. The electrode sheet according to an embodiment comprises an electrode sheet body and a plurality of tabs connected to the electrode sheet body. The width of each of the plurality of tabs is different from one another; or the length of each of the plurality of tabs is different from one another. The electrode sheet and the battery cell provided in the embodiments of the present application ensure that each of the tabs in the electrode sheet can electrically conduct well with the tab lead. Thus, the battery cell provided in the present application has the advantage of good electrical conductivity.