Abstract: The present invention relates to an electrolyte for a lithium secondary battery, comprising an organic solvent, a lithium salt and a compound of Chemical Formula 1, wherein the compound of Chemical Formula 1 is contained in an amount of 0.001 wt % or more and less than 0.1 wt %. In Chemical Formula 1, n is one of the integers 3 to 10.

Abstract: The present disclosure provides a side plate and a battery module. The side plate is applied to the battery module. The side plate includes: a first plate, a second plate and a connection portion. The first plate includes a first free end at one side in a height direction, the second plate includes a second free end at the same side in the height direction, the first free end and the second free end abut against each other. The connection portion is located at the other side opposite to the first free end and the second free end in the height direction, and is configured to connect the first plate and the second plate, and enclose a hollow cavity with the first plate and the second plate.

Abstract: A purpose of the present invention is to provide a lithium ion secondary battery having improved battery characteristics. The lithium ion secondary battery according to the present invention comprises a negative electrode comprising a negative electrode active material comprising a silicon material and an electrolyte solution comprising an electrolyte solvent comprising an open chain sulfone compound, a fluorinated cyclic carbonate and an open chain carbonate and a supporting salt comprising LiN(FSO2)2.

Abstract: According to one embodiment, a battery includes a container member, a separator, a first electrode, a first electrolyte, a second electrode and a second electrolyte. The container member has a housing space in the interior, and the separator is housed in the housing space of the container member. The separator includes a bag, and the first electrode is housed in an interior of the bag. The first electrolyte is retained on the first electrode in the interior of the bag. The second electrode is located outside the bag in the housing space. The second electrolyte is retained by the second electrode outside the bag in the housing space.

Abstract: To provide a liquid composition with which a catalyst layer and a polymer electrolyte membrane will hardly be broken at the time of their formation and a method for producing the liquid composition; and a method for producing a membrane/electrode assembly by which a catalyst layer and a polymer electrolyte membrane will hardly be broken at the time of their formation. A liquid composition comprising a polymer having ion exchange groups, water and an organic solvent, wherein the average secondary particle size of the polymer having ion exchange groups is from 100 to 3,000 nm, and the primary particle size parameter represented by the product of the average primary particle size (nm) and the ion exchange capacity (meq/g dry resin) of the polymer having ion exchange groups, is from 12 to 20.

Abstract: An aspect of the present application provides a separator comprising a porous substrate, and a first coating layer disposed on at least one surface of the porous substrate and comprising an inorganic particle and a binder. The first coating layer comprises a first region and a second region, the first coating layer in the first region comprises a first thickness, and the first coating layer in the second region comprises a second thickness; the first thickness is greater than the second thickness, and the area in the second region is greater than the area in the first region. Another aspect of the present application provides a lithium ion battery comprising a positive electrode, a negative electrode and the above separator. The purpose of the present application is to provide a separator having an increased thickness in a partial coating layer and a lithium ion battery comprising the above separator.

Abstract: A solid electrolyte (10) of the present disclosure includes porous silica (11) having a plurality of pores (12) interconnected mutually and an electrolyte (13) coating inner surfaces of the plurality of pores (12). The electrolyte (13) includes 1-ethyl-3-methylimidazolium bis(fluorosulfonyl)imide represented by EMI-FSI and a lithium salt dissolved in the EMI-FSI. A molar ratio of the EMI-FSI to the porous silica (11) is larger than 1.0 and less than 3.5.

Abstract: Provided is an anode configured to increase the ion conductivity of an anode layer and suppress a decrease in the energy density of the anode layer. Disclosed is an anode, wherein the anode is an anode comprising an anode layer for all-solid-state batteries; wherein the anode layer comprises an anode active material, a solid electrolyte and an ionic liquid; wherein the anode layer comprises at least one Si-based material selected from the group consisting of elemental Si and Si alloy as the anode active material; and wherein the ionic liquid is a solvated ionic liquid containing, in molar ratio, 1.5 mol or more of lithium bis(fluorosulfonyl)imide with respect to 1 mol of tetraglyme, or the ionic liquid is a solvated ionic liquid containing, in molar ratio, 2.0 mol or more of lithium bis(trifluoromethanesulfonyl)imide with respect to 1 mol of tetraglyme.

Abstract: A Li or Li-ion or Na or Na-ion battery cell is provided that comprises anode and cathode electrodes, a separator, and a solid electrolyte. The separator electrically separates the anode and the cathode. The solid electrolyte ionically couples the anode and the cathode. The solid electrolyte also comprises a melt-infiltration solid electrolyte composition that is disposed at least partially in at least one of the electrodes or in the separator.

Abstract: A nonaqueous electrolyte includes a lithium salt and a nonaqueous solvent in which the lithium salt is dissolved. The nonaqueous solvent includes a fluorinated chain carboxylate ester and a dicarbonyl compound having two carbonyl groups in the molecule. The dicarbonyl compound is at least one selected from the group consisting of esters and acid anhydrides and has not more than three atoms between the two carbonyl groups.

Abstract: A sulfide-impregnated solid-state battery is provided. The battery comprises a cell core constructed by basic cell units. Each unit comprises a positive electrode comprising a cathode layer and a positive meshed current collector comprising a conductive material which is further coated by oxide-based solid-state electrolyte. The cell unit further comprises a negative electrode comprising an anode layer and a negative meshed current collector comprising a conductive material which is further coated by oxide-based solid-state electrolyte. The positive and negative electrodes are stacked together to form the cell unit. The two coated oxide-based solid electrolyte layers are disposed between the positive and negative electrode as dual separators. Such a cell unit may be repeated or connected in parallel or bipolar stacking to form the cell core to achieve a desired battery voltage, power and energy. The cell core comprises a sulfide-based solid-state electrolyte dispersed in the pore structures of cell core.

Abstract: A composite electrolyte including a lithium salt; a solid electrolyte wherein the solid electrolyte is a sulfide solid electrolyte, an oxide solid electrolyte, or a combination thereof; and an ionic liquid, wherein a mixture of the ionic liquid and the lithium salt has a dielectric constant of from about 4 to about 12, and an amount of halogen ions eluted from the composite electrolyte after immersion of the solid electrolyte in the ionic liquid for 24 hours is less than about 25 parts per million by weight, based on the total weight of the composite electrolyte, as measured by ion chromatography.

Abstract: A battery according to an embodiment of the present invention includes: a plurality of tanks (2) storing electrolyte containing ions of which valence is changed; a cell (1) configured to cause oxidation-reduction of the electrolyte so as to be charged or discharged; a pipe (3) connecting the plurality of tanks and the cell; and a pump (4) configured to circulate the electrolyte between the plurality of tanks and the cell through the pipe. The battery according to an embodiment of the present invention includes a container (5) housing the plurality of tanks (2), the cell (1), the pipe (3), and the pump (4). The container has a bottom (51), a side (52), and a top (53). Accordingly, the battery in an embodiment of the present invention can be installed easily and its installation area can be reduced.

Abstract: A method of manufacturing an electrode sheet by using an electrode sheet manufacturing apparatus for manufacturing the electrode sheet includes a feeding step of feeding out a sheet body from a roll on which the sheet body is wound, the sheet body including an active layer containing a catalyst laminated on a support layer, and a cutting step of forming the electrode sheet by punching the sheet body by pressing a cutting blade from a side of the support layer against the sheet body that was fed out in the feeding step.

Abstract: A method for producing a sulfide solid electrolyte, wherein lithium sulfide and a compound represented by the following formula (1) are used as raw materials: PSX3 (1) (wherein, X is an element selected from F, CI, Br and I.).

Abstract: A fuel cell system includes a fuel cell having a cathode and an anode configured to receive a portion of a hhydrocarbon feed and to output an anode exhaust stream comprising carbon dioxide, hydrogen, and water; and an electrolyzer cell having a cathode and an anode. The anode of the electrolyzer cell is configured to receive a first portion of the anode exhaust stream and another portion of the hydrocarbon feed, and to generate a hydrogen stream.

Abstract: Provided is an anode active material, including: an amorphous carbon material in which the ratio of moieties having a distance d002 of 3.77 ? or more between crystal planes is 4% to 15% based on the entire crystal plane distance distribution. When the anode active material is used, the lifespan characteristics of a lithium battery may be improved while exhibiting high capacity.

Abstract: The present invention provides an electrode assembly, in which a plurality of electrodes are laminated, and a separator is inserted between adjacent electrodes. The outermost electrode disposed at an outermost layer of the electrode assembly includes a slurry applied to one surface of a current collector, and a protection layer adhered to the other surface of the current collector. Further, the outermost electrode is laminated to allow the slurry to contact the separator. Furthermore, a method for manufacturing the electrode assembly comprises applying a slurry to one surface of a current collector and laminating a protection layer on the other surface of the current collector to form an outermost electrode; allowing the outermost electrode to pass between a pair of press-rollers to perform a rolling process; and laminating the rolled outermost electrode to be disposed on an uppermost layer or a lowermost layer of the electrode assembly.

Abstract: An all-solid-state battery includes: a positive electrode layer including a positive electrode current collector and a positive electrode mixture layer; a negative electrode layer including a negative electrode current collector and a negative electrode mixture layer; and a solid electrolyte layer. The solid electrolyte layer is disposed between the positive electrode mixture layer and the negative electrode mixture layer. A weight per unit area of a first portion of the negative electrode mixture layer overlapping the positive electrode mixture layer on a stacking axis is greater than a weight per unit area of a second portion of the negative electrode mixture layer not overlapping the positive electrode mixture layer on the stacking axis.

Abstract: Provided is a method for manufacturing a secondary battery including a stacked electrode body including a plurality of positive electrode plates (1) and a plurality of negative electrode plates, the positive electrode plates (1) each having a positive electrode active material layer (1b) formed on a positive electrode substrate (1a), a positive electrode substrate exposed portion where the positive electrode active material layer (1b) is not formed on the positive electrode substrate (1a) being provided as a positive electrode tab portion (1e) at the end of the positive electrode plate (1). The method includes a cutout forming step of providing a cutout in a region at the base of the positive electrode plate (1) where the active material layer (1b) is formed, and a compressing step of compressing the positive electrode active material layer (1b) after the cutout forming step.