Abstract: A rechargeable lithium battery includes a positive electrode, a negative electrode, and a separator between the positive electrode and the negative electrode. The separator includes a substrate having a first side facing the negative electrode and a second side facing the positive electrode. A first layer is positioned on the first side of the substrate and includes an organic material, and a second layer is positioned on the second side of the substrate and includes an inorganic material.

Abstract: An electrical storage unit that includes a positive electrode, which includes a positive-electrode collector electrode and a positive-electrode active material layer on the positive-electrode collector electrode, a negative electrode, which includes a negative-electrode collector electrode and a negative-electrode active material layer on the negative-electrode collector electrode, the negative-electrode active material layer facing the positive-electrode active material layer, and a first insulating layer bonded to the positive electrode and the negative electrode and separating the positive electrode from the negative electrode. The first insulating layer is bonded to part of a surface of the positive electrode and part of a surface of the negative electrode and includes a communication path for connecting the outside of the electrical storage unit to the inside of the electrical storage unit.

Abstract: A separator includes a substrate layer and a porous surface layer that is provided on at least one major surface of the substrate layer and contains a first particle, a second particle, and a resin material. The surface layer includes a first region configured by the first particle and a second region configured by the second particle and the resin material.

Abstract: According to one embodiment, there is provided a nonaqueous electrolyte secondary battery including a positive electrode, a negative electrode containing a titanium-containing oxide, and a nonaqueous electrolyte. The nonaqueous electrolyte contains carbon monoxide and at least one selected from difluorophosphoric acid and monofluorophosphoric acid. The ratio of the mass concentration of carbon monoxide to the sum of the mass concentrations of difluorophosphoric acid and monofluorophosphoric acid is in the range of 0.1 to 5%.

Abstract: An electrode structure of a lithium battery is provided for electrically connecting a positive pole and a negative pole in a tank of the lithium battery to the external. The electrode structure includes a lid body and at least one electrode body made of sheet metal material. The electrode body has a wrapped portion disposed in the lid body, two ends of the wrapped portion form bent portions respectively, and a connection portion and an output portion extend respectively from the bent portions to protrude from a surface of the lid body. A conductive electrode structure of the lithium battery is formed by wrapping instead of direct penetrating, thus achieving a hermetic effect of conductive positions of the electrode.

Abstract: A lithium-ion cell comprising: (A) a cathode comprising graphene as the cathode active material having a surface area to capture and store lithium thereon and wherein said graphene cathode is meso-porous having a specific surface area greater than 100 m2/g; (B) an anode comprising an anode active material for inserting and extracting lithium, wherein the anode active material is mixed with a conductive additive and/or a resin binder to form a porous electrode structure, or coated onto a current collector in a coating or thin film form; (C) a porous separator disposed between the anode and the cathode; (D) a lithium-containing electrolyte in physical contact with the two electrodes; and (E) a lithium source disposed in at least one of the two electrodes when the cell is made. This new Li-ion cell exhibits an unprecedentedly high energy density.

Abstract: Provided is a secondary battery including integrated anode and cathode leads and a method of manufacturing the same. An anode lead and a cathode lead of a secondary battery aligned to be parallel with respect to each other are encompassed by a single lead film. Thus, sealing may be easily implemented, lead film components may be managed as one component, and vibrations of an electrode lead may be prevented.

Abstract: In an aspect, a positive electrode for a rechargeable lithium battery including a current collector, a positive active material layer disposed on the current collector, and a coating layer disposed on the positive active material layer is disclosed.

Abstract: This invention provides a portable computing device powered by a surface-mediated cell (SMC)-based power source, the portable device comprising a computing hardware sub-system and a rechargeable power source electrically connected to the hardware and providing power thereto, wherein the power source contains at least a surface-mediated cell. The portable computing device is selected from a laptop computer, a tablet, an electronic book (e-book), a smart phone, a mobile phone, a digital camera, a hand-held calculator or computer, or a personal digital assistant.

Abstract: A secondary battery includes an electrode assembly including a first electrode plate, a separator, and a second electrode plate; a first collecting plate electrically coupled to the first electrode plate; a second collecting plate electrically coupled to the second electrode plate; a case containing the electrode assembly, the first collecting plate, and the second collecting plate; a first electrode terminal electrically coupled to the first collecting plate; a second electrode terminal electrically coupled to the second collecting plate; a first plate coupled to the first collecting plate and the first electrode plate and configured to seal the case; a second plate coupled to the second collecting plate and the second electrode terminal; and an insulation plate between the first plate and the second plate.

Abstract: Disclosed is a secondary battery having a structure in which a jelly-roll having a cathode/separator/anode structure is mounted in a cylindrical battery case, wherein a plate-shaped insulator mounted on top of the jelly-roll includes a perforated inlet enabling gas discharge and penetration of electrode terminals, a plurality of fine pores having a size that allows permeation of an electrolyte solution, but does not allow permeation of foreign materials, and a plurality of strip or bead shaped protrusions disposed in transverse and/or longitudinal directions on one or both surfaces of the insulator.

Abstract: A battery separator includes a porous membrane A including a polyethylene resin, and a porous membrane B laminated thereon including a heat resistant resin and inorganic particles or cross-linked polymer particles, wherein the porous membrane A satisfies expressions (a) to (c), and the entire battery separator satisfies expressions (d) to (f).

Abstract: A single fiber layer structure of micron or nano fibers, and a multi-layer structure of micron and nano fibers are provided. The single fiber layer structure of micron fibers comprises a web of micron fibers and an impregnating resin, and has a pore size of 1 nm-500 nm. The web of micron fibers is formed by plural interweaved micron fibers (D?1 ?m). The single fiber layer structure of nano fibers comprises a web of nano fibers formed by plural interweaved nano fibers (D<1 ?m). The multi-layer structure of micron and nano fibers comprises a web of interweaved micron fibers, a web of nano fibers formed by plural nano fibers interweaved on the web of micron fibers, a mixture layer formed by parts of the interweaved nano and micron fibers, and a resin at least impregnating the mixture layer and parts of the micron fibers of the web of micron fibers.

Abstract: A square lithium secondary battery includes a wound body in which a collective sheet in which a positive electrode sheet and a negative electrode sheet overlap each other with a first separator interposed therebetween is wound while a second separator is put inside the collective sheet. An active material mixture layer on one or both surfaces of at least one of the positive electrode sheet and the negative electrode sheet includes a region with a plurality of openings and a region with no opening. At least a bent portion of the collective sheet is covered with the region with the plurality of openings.

Abstract: A negative electrode for a lithium ion secondary battery including an active material layer that is disposed on a current collector and that contains a negative electrode active material and a binder, in which the negative electrode active material includes an alloy active material and a carbon active material, and the weight ratio between the alloy active material and the carbon active material in the active material layer is 20:80 to 50:50, and the binder contains 0.1 to 15 wt % of an ethylenically unsaturated carboxylic acid monomer polymerization unit.

Abstract: Disclosed is a secondary battery having improved safety against puncture and collapse. The secondary battery includes an electrode assembly including a first electrode, a second electrode, and a separator between the first electrode and the second electrode, a case receiving the electrode assembly, a cap plate coupled to the case, and a support plate electrically coupled to the first and second electrodes of the electrode assembly, the support plate being disposed between the electrode assembly and the case.

Abstract: A lithium-ion secondary battery with excellent durability is provided using a two-phase coexisting compound as a positive electrode active material. This lithium-ion secondary battery is provided with an electrode body having a positive electrode containing a positive electrode active material and a negative electrode containing a negative electrode active material, and a non-aqueous electrolyte solution containing a lithium salt in an organic solvent. The positive electrode active material is mainly composed of a two-phase coexisting compound containing lithium, and also contains particles of a lithium-transition metal oxide with a layered structure. The particles of the layered oxide have an average particle diameter of 2 ?m or less, and the percentage content thereof in the positive electrode active material is 5 mass % or less.

Abstract: Provided is a method of manufacturing a nonaqueous electrolyte secondary battery. The method includes: forming an electrode assembly including a positive electrode plate and a negative electrode plate disposed with a separator interposed therebetween; arranging the electrode assembly and a nonaqueous electrolyte containing LiBOB (lithium bis(oxalato)borate) and LiPF2O2 (lithium difluorophosphate) inside an outer body; and configuring the concentration of the LiBOB to be larger than that of the LiPF2O2 and to be smaller than that of the LiPF2O2 by charge and discharge.

Abstract: An electrode assembly has a positive sheet, a negative sheet, and separators that are stacked and wounded. A joint portion is formed by thermally fusion bonding or compression bonding of the separators at one end in a width direction thereof so that one end of the positive sheet on an opposite side in a width direction with respect to a positive lead is wrapped by the separators. Arranged outside of the joint portion in the width direction is a separating portion where the separators are separated from each other. A protecting layer made of an insulating material is formed on the end face of the positive sheet. The positive sheet is reliably prevented from being in contact with a foreign material.

Abstract: The present invention relates to a battery separator including: a porous substrate; and a layer of a crosslinked polymer supported on at least one surface of the porous substrate, in which the crosslinked polymer is obtained by reacting (a) a reactive polymer having, in the molecule thereof, a first reactive group containing active hydrogen and a second reactive group having cationic polymerizability with (b) a polycarbonate urethane prepolymer terminated by an isocyanate group.

Abstract: The present disclosure relates to a lithium-ion solid battery, and a synthesis method and a synthesis device thereof. The synthesis method comprises a synthesis step for a current collector, a synthesis step for a cathode, a synthesis step for a diaphragm and a synthesis step for an anodee, wherein at least one of the steps is accomplished through on-site spray synthesis, and the on-site spray synthesis comprises a process of spraying a molten lithium metal. In the aforesaid way, the manufacturing process flow of the lithium-ion solid battery can be simplified.

Abstract: The present invention relates to a novel particulate porous carbon material containing a carbon phase and at least one pore phase, and to the use of such materials in lithium cells, especially lithium-sulfur cells. The carbon phase forms, with the pore phase, essentially unordered co-continuous phase domains, such that the distance between adjacent domains of the pore phase is not more than 50 nm. The invention also relates to a process for producing such carbon materials and to composite materials comprising elemental sulfur and at least one inventive particulate porous carbon material.

Abstract: The present invention is a secondary battery, including: an electrode group that includes a positive electrode and a negative electrode, an electrolyte, and a battery cell container that contains the electrode group and the electrolyte and that is sealed, wherein: an adhesive layer for trapping foreign matter present inside the battery cell container is disposed in the battery cell container by exposing at least part of the adhesive layer so as to allow the adhesive layer to come into contact with the electrolyte.

Abstract: The invention relates to microporous polymeric membranes suitable for use as battery separator film. The invention also relates to a method for producing such a membrane, batteries containing such membranes as battery separators, methods for making such batteries, and methods for using such batteries.

Abstract: Embodiments of the present invention facilitate a winding process and enable auxiliary current collectors to be securely fixed to a main current collector, thereby minimizing deformation during battery charging and discharging and maintaining sufficient strength. The jelly roll includes a first auxiliary current collector, a second auxiliary current collector, a mandrel insulating layer, and an electrode plate. The first auxiliary current collector and the second auxiliary current collector are spaced apart from each other and each has a mandrel protrusion on an opposite end portion. The mandrel insulating layer insulates the auxiliary current collectors from each other and insulates the auxiliary current collectors from an exterior. The electrode plate is formed by layering a separator, a first electrode plate, a separator and a second electrode plate and is wound on an external surface of the mandrel insulating layer.

Abstract: A separator (1) for electrode plates (2) in gel storage batteries having two substantially rectangular layers (3, 3?) of a flat separator material, which layers come to lie in mutually superposed relationship. In order to provide less expensive separators for the separation of plate electrodes in gel storage batteries, which have a low electrical resistance and which afford additional protection for the edges and side surfaces and at the same time permit homogenous gel filling of the storage battery, the invention proposes that the two layers of separator material are connected together at least portion-wise in the region of their edges, forming a casing or pocket for the introduction of an electrode plate and a method and battery employing the separator.

Abstract: The present invention is to provide a separator that is excellent in heat resistance, shutdown function, flame retardancy and handling property. The separator for a nonaqueous secondary battery of the invention is a separator for a nonaqueous secondary battery that has a polyolefin microporous membrane at least one surface of which is laminated with a heat resistant porous layer containing a heat resistant resin, and is characterized by containing an inorganic filler containing a metallic hydroxide that undergoes dehydration reaction at a temperature of 200 to 400° C.

Abstract: A secondary battery module and a battery spacer, the secondary battery module including a plurality of unit cells; and a battery spacer between the unit cells, the battery spacer including a base portion, the base portion including a portion contacting a large side surface of a unit cell, a wing portion projecting from the base portion toward an adjacent battery spacer and enclosing at least a portion of a small side surface of the unit cell, and a fastening portion on the wing portion, the fastening portion being for coupling the battery spacer to an adjacent battery spacer.

Abstract: Disclosed is a lithium secondary battery. The lithium secondary battery includes a cathode, an anode, a separator and a non-aqueous electrolyte solution. The separator includes a porous substrate, and a coating layer coated on at least one surface of the porous substrate and including a mixture of inorganic particles and a binder polymer. The non-aqueous electrolyte solution contains an ionizable lithium salt, an organic solvent, and a dinitrile compound having a specific structure. The lithium secondary battery is very safe without side reactions of the electrolyte solution. Therefore, the lithium secondary battery exhibits excellent cycle life and output performance characteristics.

Abstract: Disclosed is a cooling member mounted at a top and/or a bottom of a battery module or a battery pack to remove heat generated from battery cells during charge and discharge of the battery cells, wherein the cooling member includes a thermal conduction member including a stepped fastening plate having step portions of different lengths, coolant flow channels being formed at interfaces of the fastening plate and a coolant conduit configured to have a hollow structure through which a coolant flows, the coolant conduit including a main conduit and one or more branch conduits extending vertically in a state in which the branch conduits communicate with the main conduit such that the branch conduits communicate with the coolant flow channels of the thermal conduction member.

Abstract: In at least one embodiment, a battery is provided comprising an anode and cathode, a separator between the anode and cathode, and a shutdown layer between the separator and the anode or cathode. The shutdown layer may include low melting point material and a conductive material within the low melting point material forming a conductive network within the shutdown layer. At a melting point temperature of the low melting point material, the conductive network is reduced such that at least a portion of the shutdown layer is substantially electrically non-conductive. The shutdown layer may be a free-standing layer or may be coated one or both of the electrodes.

Abstract: A rechargeable battery includes an electrode assembly, a case, and an electrode terminal. The electrode assembly including at least a central negative electrode, a pair of positive electrodes disposed on opposite side of the central negative electrode, and pair of outermost negative electrodes adjacent the pair of positive electrodes with a separator separating all the electrodes from each other. The pair of outermost negative electrodes respectively include a negative current collector and negative active material layers formed on both sides of the negative current collector. The case receives the electrode assembly. The electrode terminal includes a positive terminal connected to a positive electrode and a negative terminal connected to a negative electrode.

Abstract: The present invention relates to an electrode for a non-aqueous electrolyte secondary battery, a non-aqueous electrolyte secondary battery using the electrode, and a method for manufacturing the non-aqueous electrolyte secondary battery. The electrode for a non-aqueous electrolyte secondary battery includes a material mixture layer containing an active material and a porous insulating layer. The insulating layer is formed on the material mixture layer. The insulating layer contains a resin having a cross-linked structure and inorganic particles. A mixed layer that includes components of the insulating layer and components of the material mixture layer is provided at the interface between the insulating layer and the material mixture layer.

Abstract: An electrode assembly and a secondary battery having the same improve efficiency and stability of the secondary battery. The electrode assembly includes: a positive electrode plate having a positive electrode collector on which a positive electrode coating portion and a positive electrode non-coating portion are formed; a negative electrode plate having a negative electrode collector on which a negative electrode coating portion and a negative electrode non-coating portion are formed; a separator disposed between the positive electrode plate and the negative electrode plate; and an insulating member disposed on one side of the positive or negative electrode non-coating portion, and formed adjacent to at least one of the ends of the positive electrode coating portion and/or at least one of the end of the negative electrode coating portion. The electrode assembly at least prevents damage to a separator generated due to non-uniformity of the ends of the electrode coating portion.

Abstract: A battery pack including: a bare cell including a cathode and an anode; and a chip on board (COB) module electrically coupled to the cathode and anode of the bare cell. The COB module controls the charging/discharging of the bare cell. The COB module can be commonly used in different types of batteries and can be connected to a variety of electric devices.

Abstract: An active material for a nonaqueous electrolyte secondary battery includes first particles and second particles provided to coat the first particles so as to be scattered on the surfaces of the first particles. The circularity of the first particles coated with the second particles is 0.800 to 0.950, and the ratio r1/r2 of the average particle diameter r1 of the second particles to the average particle diameter r2 of the first particles is 1/20 to 1/2.

Abstract: The present disclosure relates to a separator and a lithium secondary battery including the same. The separator comprises a polyethylene-based powder or a polypropylene-based powder provided on or in the base film, wherein the polyethylene-based powder or the polypropylene-based powder is different from the base film.

Abstract: An electrode assembly comprises a first electrode including a first electrode current collector and a first electrode active material layer, a second electrode including a second electrode current collector and a second electrode active material layer, a separator disposed between the first electrode and the second electrode, and an electrode absorbing member in contact with the first electrode.

Abstract: An electricity supply system includes a circuit substrate, a first electrode substrate, a second electrode substrate, a first package unit, and a second package unit. The circuit substrate includes at least a separating area. The first electrode substrate includes a first current collector and a first active material layer, which is disposed opposed to the separating area and is located between the separating area and the first current collector. The second electrode substrate includes a second current collector and a second active material layer, which is disposed opposed to the separating area and is located between the separating area and the second current collector. The first and second package units are located between the first electrode substrate, the second electrode substrate and the circuit substrate respectively.

Abstract: A rechargeable battery includes a plurality of electrode assemblies each having a first planar surface and a second planar surface substantially opposite to the first planar surface; a case housing the electrode assemblies; and a safety member having a first side plate that contacts the first planar surface of a first electrode assembly of the plurality of electrode assemblies, wherein the first electrode assembly is located at a periphery of the electrode assemblies, a second side plate that contacts the second planar surface of the first electrode assembly, and a connector electrically connecting the first side plate and the second side plate to each other, wherein the safety member is electrically coupled to the first electrode.

Abstract: This invention provides a novel battery structure that, in some variations, utilizes a mixed lithium-ion and electron conductor as part of the separator. This layer is non-porous, conducting only lithium ions during operation, and may be structurally free-standing. Alternatively, the layer can be used as a battery electrode in a lithium-ion battery, wherein on the side not exposed to battery electrolyte, a chemical compound is used to regenerate the discharged electrode. This battery structure overcomes critical shortcomings of current lithium-sulfur, lithium-air, and lithium-ion batteries.

Abstract: Provided is a separator/anode assembly for use in an electric current producing cell, wherein the assembly comprises an anode current collector layer interposed between a first anode layer and a second anode layer and a porous separator layer on the side of the first anode layer opposite to the anode current collector layer, wherein the first anode layer is coated directly on the separator layer. Also provided are methods of preparing such separator/anode assemblies.

Abstract: A power source for a solid state device includes: a first frame having a first contact portion, a first bonding portion and a first extension portion between the first contact portion and the first bonding portion; a second frame having a second contact portion, a second bonding portion and a second extension portion between the second contact portion and the second bonding portion; and a first pole layer, an electrolyte layer and a second pole layer positioned between the first and second contact portions, wherein a first portion of the electrolyte layer is positioned between the first extension and the first pole and a second portion of the electrolyte layer is positioned between the first extension and the second pole.

Abstract: The present invention provides a composite separator for a polymer electrolyte membrane fuel cell (PEMFC) and a method for manufacturing the same, in which a graphite foil prepared by compressing expanded graphite is stacked on a carbon fiber-reinforced composite prepreg or a mixed solution prepared by mixing graphite flake and powder with a resin solvent is applied to the cured composite prepreg such that a graphite layer is integrally molded on the outermost end of the separator.

Abstract: One embodiment includes a rechargeable charge storage device including a microcapsule disposed within said rechargeable charge storage device; and a thermal retardant chemical species contained within said microcapsule, wherein said microcapsule is adapted to release said chemical species upon being exposed to a triggering event either prior to or during an unstable rise in temperature of said charge storage device.

Abstract: A method for producing an ultra-high-molecular-weight polyethylene porous membrane, including: a step of molding a film using an ultra-high-molecular-weight polyethylene raw material; a step of biaxially stretching the obtained film in X-axis and Y-axis directions at a temperature of from a melting point of the film to 180° C.; and a pore-forming step of stretching the stretched film along at least one axis of the X-axis and Y-axis at from 142° C. to 170° C. Alternatively, a method for producing an ultra-high-molecular-weight polyethylene film, including: a step of molding a film by two steps of press-molding and roll-molding using an ultra-high-molecular-weight polyethylene raw material; and a step of biaxially stretching the film obtained in the above step, in X-axis and Y-axis directions at a temperature of from a melting point of the film to 180° C.

Abstract: The disclosure discusses a secondary battery with superior durability and a vehicle configured to mount the same. The secondary battery comprises an electrode structure wherein a cathode is formed at one side of a base material layer having electrical insulating property and an anode is formed at another side of the base material layer. A plurality of electrode structures are stacked with an electrolyte layer interposed therebetween such that the cathode and anode of adjacent electrode structures are on opposite sides of the electrolyte layer.

Abstract: The present teachings include an electrochemical cell including an anode, a cathode, an electrolyte, a separator disposed between the cathode and anode, and a housing containing the anode, cathode, electrolyte, and separator. The separator can include a first sheet consisting essentially of a single layer material and a second sheet distinct from the first sheet. The second sheet can include an inner microporous layer laminated between two more outer layers. In some cells, the inner layer can have a transition temperature between a porous configuration and a substantially non-porous configuration that is between about 80 degrees C. and 150 degrees C., and in which the two more outer layers maintain their structural integrity to at least about 10 degrees C. greater than the first layer transition temperature.

Abstract: A separator, a lithium rechargeable battery using the separator, and a method of manufacturing the lithium rechargeable battery. More particularly, a separator in which a plurality of porous films having different strength from one another are disposed between a positive electrode plate and a negative electrode plate. A porous film having a higher tensile strength is disposed at a region adjacent to the negative electrode plate, and the other porous film is disposed adjacent the positive electrode plate. The porous film having the higher tensile strength has smaller holes and/or is thicker than the other porous film. The separator improves the stability of the battery by improving the prevention of an electrical short occurring between the two electrode plates of the electrode assembly, and a lithium rechargeable battery using the same.

Abstract: A nonaqueous electrolyte lithium secondary battery obtained by the present invention has a separator and a porous layer which contains an inorganic filler and a binder and which is formed on the separator, wherein a thickness of the separator ranges from 12 ?m to 18 ?m, a porosity of the separator ranges from 52% to 67%, a thickness of the porous layer ranges from 3 ?m to 15 ?m, a porosity of the porous layer ranges from 44% to 70%, and the porous layer-attached separator exhibits a film resistance equal to or lower than 1.35 ?·cm2 when impregnated with an electrolyte solution.