Abstract: Li-ion batteries are provided that include a cathode, an anode comprising active particles, an electrolyte ionically coupling the anode and the cathode, a separator electrically separating the anode and the cathode, and at least one hydrofluoric acid neutralizing agent incorporated into the anode or the separator. Li-ion batteries are also provided that include a cathode, an anode comprising active particles, an electrolyte ionically coupling the anode and the cathode, and a separator electrically separating the anode and the cathode, where the electrolyte may be formed from a mixture of an imide salt and at least one salt selected from the group consisting of LiPF6, LiBF4, and LiClO4. Li-ion battery anodes are also provided that include an active material core and a protective coating at least partially encasing the active material core, where the protective coating comprises a material that is resistant to hydrofluoric acid permeation.

Abstract: Embodiments of the present application relate to a solid electrolyte and a preparation method thereof, and an electrochemical device and an electronic device comprising the same. The solid electrolyte of the present application includes a solid electrolyte material being represented by the chemical formula of Li1+2x?2yMyGa2+xP1?xS6, where M is selected from the group consisting of Sr, Ba, Zn, Cd and a combination thereof, 0?x?0.2 and 0?y?0.05. Embodiments of the present application provides a solid electrolyte having good stability with lithium and ionic conductivity by forming the solid electrolyte using lower cost solid electrolyte materials and optimizing the material composition and a crystal structure thereof. At the same time, this also reduces the manufacturing costs of the solid electrolyte, and improves the structural stability of the solid electrolyte.

Abstract: A solid battery including at least one first laminate body in which a first electrolyte layer, a first positive electrode layer, a first current collecting layer, and a second positive electrode layer are laminated in this order; at least one second laminate body in which a second electrolyte layer, a first negative electrode layer, a second current collecting layer, and a second negative electrode layer are laminated in this order; a first insulating layer connected to at least part of a side surface portion of the first laminate body; and a second insulating layer connected to at least part of a side surface portion of the second laminate body. Each of the first current collecting layer and the second current collecting layer has ionic conductivity of 10?7 S/cm or lower, and each of the first insulating layer and the second insulating layer has ionic conductivity of 10?7 S/cm or lower.

Abstract: A solid-state electrolyte having a garnet-type crystal structure represented by the formula (Li7?ax+yAx)La3(Zr2?yBy)O12, where A is at least one element selected from Mg, Zn, Al, Ga, and Sc, a is a valence of A, B is at least one element selected from Al, Ga, Sc, Yb, Dy, and Y, x is more than 0 and less than 1.0, y is more than 0 and less than 1.0, and 7?ax+y is more than 5.5 and less than 7.0).

Abstract: Set forth herein are compositions comprising A.(LiBH4).B.(LiX).C.(LiNH2), wherein X is fluorine, bromine, chloride, iodine, or a combination thereof, and wherein 0.1?A?3, 0.1?B?4, and 0?C?9 that are suitable for use as solid electrolyte separators in lithium electrochemical devices. Also set forth herein are methods of making A.(LiBH4).B.(LiX).C.(LiNH2) compositions. Also disclosed herein are electrochemical devices which incorporate A.(LiBH4).B.(LiX).C.(LiNH2) compositions and other materials.

Abstract: A nonaqueous electrolyte secondary battery includes a positive electrode containing a positive electrode active material, a negative electrode, and a nonaqueous electrolyte. The positive electrode active material includes lithium nickel complex oxide, and the lithium nickel oxide has a layered rock-salt structure and is represented by a composition formula of LixNiyMzO2 (where M is at least one metal element selected from the group consisting of Co, Al, Mg, Ca, Cr, Zr, Mo, Si, Ti, and Fe, and x, y, and z satisfy 0.95?x?1.05, 0.8?y?1, 0?z?0.2, and y+z=1). A half width n of a (104) diffraction peak in an X-ray diffraction pattern is 0.13° or less, and the content of the positive electrode active material with a particle size of 3.41 ?m or less is 2 volume % or less based on a total amount of the positive electrode active material contained in the positive electrode.

Abstract: A separator for a lithium secondary cell is provided. The separator has a separator substrate, selected from porous separators for liquid-electrolyte cells and solid-electrolyte separators having lithium ion conductivity, and has a layer of glassy carbon (GC), which is applied at least on one side of the separator substrate. A lithium secondary cell is also provided, which contains a negative electrode, a positive electrode, and a separator placed between the negative electrode and the positive electrode. The glassy carbon layer of the separator faces the negative electrode.

Abstract: Disclosed is an electrochemical cell comprising a lithium anode and a sulfur-containing cathode and a non-aqueous electrolyte. The cell exhibits high utilization of the electroactive sulfur-containing material of the cathode and a high charge-discharge efficiency.

Abstract: An integrated kesterite (e.g., CZT(S,Se)) photovoltaic device and battery is provided. In one aspect, a method of forming an integrated photovoltaic device and battery includes: forming a photovoltaic device having a substrate, an electrically conductive layer, an absorber layer, a buffer layer, a transparent front contact, and a metal grid; removing the substrate and the electrically conductive layer from the photovoltaic device to expose a backside surface of the absorber layer; forming at least one back contact on the backside surface of the absorber layer; and integrating the photovoltaic device with a battery, wherein the integrating includes connecting i) a positive contact of the battery with the back contact on the backside surface of the absorber layer and ii) a negative contact of the battery with the metal grid on the transparent front contact. An integrated photovoltaic device and battery is also provided.

Abstract: A main object of the present disclosure is to provide a method for producing an all-solid-state battery in which the used amount of the PVDF binder may be decreased, and the deterioration of the sulfide solid electrolyte may be suppressed. The present disclosure achieves the object by providing a method for producing an all-solid-state battery, the method comprising a step of forming an electrolyte-containing layer by using a slurry including a sulfide solid electrolyte containing a Li element, a P element, and a S element, a PVDF binder, and a solvent, and as a first solvent, the solvent includes 50 volume % or more of a ketone solvent represented by a general formula (1): wherein, in the general formula (1), R1 and R2 are each independently a saturated hydrocarbon group or an aromatic hydrocarbon group, and a carbon number of at least one of R1 and R2 is 2 or more.

Abstract: A composite solid electrolyte includes: a lithium ion conductive solid electrolyte; and a polymer-containing electrolyte coating layer on a surface of a lithium ion conductive solid electrolyte, wherein the polymer-containing electrolyte coating layer includes an ion conductive polymer having an alkylene oxide segment.

Abstract: Methods for making solid-state laminate electrode assemblies include methods of forming a solid electrolyte interphase (SEI) by ion implanting nitrogen and/or phosphorous into the glass surface by ion implantation.

Abstract: Methods for making solid-state laminate electrode assemblies include methods to prevent devitrifying and damaging a lithium ion conducting sulfide glass substrate during thermal evaporation of lithium metal, as well as methods for making thin extruded lithium metal foils.

Abstract: Nanosized cubic lithium lanthanum zirconate is synthesized by forming a solution including an organic compound and compounds of lithium, lanthanum, and zirconium; drying the solution to yield a solid; and heating the solid in the presence of oxygen to pyrolyze the organic compound to yield a product comprising nanosized cubic lithium lanthanum zirconate.

Abstract: Disclosed is a ceramic material having a formula of LiwAxM2Re3-yOz, wherein w is 5-7.5; wherein A is selected from B, Al, Ga, In, Zn, Cd, Y, Sc, Mg, Ca, Sr, Ba, and any combination thereof; wherein x is 0-2; wherein M is selected from Zr, Hf, Nb, Ta, Mo, W, Sn, Ge, Si, Sb, Se, Te, and any combination thereof; wherein Re is selected from lanthanide elements, actinide elements, and any combination thereof; wherein y is 0.01-0.75; wherein z is 10.875-13.125; and wherein the material has a garnet-type or garnet-like crystal structure. The ceramic garnet based material is ionically conducting and can be used as a solid state electrolyte for an electrochemical device such as a battery or supercapacitor.

Abstract: Provided is a method of producing a sulfide solid electrolyte with which the capacity retention of an all-solid-state battery can be improved. The method of producing a sulfide solid electrolyte comprises synthesizing material for a sulfide solid electrolyte from raw material for an electrolyte; and after said synthesizing, heating the material for a sulfide solid electrolyte in a flow of a gas at a temperature of no less than a melting point of elemental sulfur, the gas being able to form a chemical bond with the elemental sulfur.

Abstract: A lithium sulfide (Li2Sw)-lithium phosphorus sulfide (LixPySz) composite, electrochemical cells comprising the same, and methods for making the same are described herein. By the mechanochemical method described herein, the Li2Sw—LixPySz composite can be formed and used as the active material in a positive electrode for a variety of electrochemical cells. It is shown herein that the composite is an electrochemically active cathode material. Further, it has been shown that the Li2Sw—LixPySz composite shows increased resistance to decomposition and H2S generation than Li2S.

Abstract: A solid-state electrolyte including an ion-conducting inorganic material represented by the formula Li1+yZr2?xMex(PO4)3 where 2>x>0, 0.2>y>?0.2, and Me is at least one element from Group 14, Group 6, Group 5, or combinations thereof.

Abstract: An example system includes an enclosure of a mobile computing device, where the enclosure includes an external surface and an internal surface. The system also includes a lithium-based battery having a plurality of battery layers deposited on the external surface of the enclosure such that the enclosure is a substrate for the plurality of battery layers. The plurality of battery layers include at least (i) a first conductive layer plated on a portion of the external surface of the enclosure, where the first conductive layer is configured as a cathode current collector of the lithium-based battery, and (ii) a second conductive layer plated on a respective portion of the external surface of the enclosure, where the second conductive layer is configured as a portion of an anode current collector of the lithium-based battery.

Abstract: Provided is a method of manufacturing a lithium ion secondary battery. The method includes a step of initially charging the battery. The step includes: a first step of charging the battery such that a voltage Vt of the battery is increased to a first voltage Vh which is in a lower decomposition range Ad; a second step of holding the voltage Vt of the battery at the first voltage Vh; and a third step of charging the battery to a second voltage Ve, which is higher than the first voltage Vh, after the second step.

Abstract: A high-rate lithium cobaltate cathode material, which contains a multi-channel network formed by fast ionic conductor Li?M??O?, mainly consists of lithium cobaltate. The lithium cobaltate is melted together with the fast ionic conductor Li?M??O? in the form of primary particles to form secondary particles. Besides, the lithium cobaltate is embedded in the multi-channel network formed by fast ionic conductor Li?M??O?. The element M? in Li?M??O? is one or more of Ti, Zr, Y, V, Nb, Mo, Sn, In, La, W and 1???4, 1???5, 2???12. The lithium cobaltate cathode material is mainly obtained by uniformly mixing cobaltous oxide impregnated with a hydroxide of M? and lithium source, then by the sintering reaction in an air atmosphere furnace at a high temperature. The product of the present invention can greatly promote the lithium ion conductivity of the lithium cobaltate cathode material during the charging and discharging process of the lithium-ion battery, and improve the rate performance of the material.

Abstract: A battery, including: a positive electrode; a negative electrode; and an electrolyte layer containing a negative electrode active material.

Abstract: A LiBH4—C60 nanocomposite that displays fast lithium ionic conduction in the solid state is provided. The material is a homogenous nanocomposite that contains both LiBH4 and a hydrogenated fullerene species. In the presence of C60, the lithium ion mobility of LiBH4 is significantly enhanced in the as prepared state when compared to pure LiBH4. After the material is annealed the lithium ion mobility is further enhanced. Constant current cycling demonstrated that the material is stable in the presence of metallic lithium electrodes. The material can serve as a solid state electrolyte in a solid-state lithium ion battery.

Abstract: The main object of the present disclosure is to provide a composite active material with a capability of improving a battery output. The present disclosure achieves the object by providing a composite active material comprising: an oxide active material, an oxide solid electrolyte layer that coats a surface of the oxide active material, and a sulfide solid electrolyte layer that coats a surface of the oxide solid electrolyte layer; wherein the sulfide solid electrolyte layer has a specific surface area in a range of 1.06 m2/g to 1.22 m2/g, and a thickness the sulfide solid electrolyte layer is in a range of 15 nm to 25 nm.

Abstract: The present invention relates to a Li-rich antiperovskite compound and the use thereof, and more particularly, to a Li-rich antiperovskite compound having a novel structure in which a dopant is substituted in a Li3OCl compound, wherein the dopant is substituted for an O site rather than an anionic Cl site, as known in the art, and an electrolyte using the same. The Li-rich antiperovskite compound has high lithium ion conductivity and excellent thermal stability, and thus can be applied as an electrolyte for lithium secondary batteries which are driven at a high temperature.

Abstract: An implantable medical device comprising a battery cell including: an anode; a cathode including fluorinated carbon particles; a separator between the anode and the cathode; and an electrolyte contacting the anode, the cathode, and the separator; wherein greater than 50 vol-% of the fluorinated carbon particles have a particle size within a range of 2 microns to 10 microns, and greater than 50% by number have an aspect ratio within a range of 1:1.2 to 1:8.

Abstract: Disclosed is a method of preparing a solid electrolyte, which includes (a) preparing a solid electrolyte precursor slurry by subjecting a mixed solution including a metal precursor solution, containing a lanthanum precursor, a zirconium precursor and an aluminum precursor, a complexing agent, and a pH controller to coprecipitation, (b) preparing a solid electrolyte precursor by washing and drying the solid electrolyte precursor slurry, (c) preparing a mixture by mixing the solid electrolyte precursor with a lithium source, and (d) preparing an aluminum-doped lithium lanthanum zirconium oxide (LLZO) solid electrolyte by calcining the mixture, and which is also capable of adjusting the aluminum content of a starting material to thus control sintering properties and of adjusting the composition of a precursor and a lithium source to thus control the crystal structure, thereby improving the ionic conductivity of the solid electrolyte.

Abstract: Disclosed is an anode mixture configured to provide an all-solid-state lithium ion secondary battery being excellent in cycle characteristics when it is used in the battery, an anode including the anode mixture, and an all-solid-state lithium ion secondary battery including the anode. The anode mixture may be an anode mixture for an all-solid-state lithium ion secondary battery, wherein the anode mixture contains an anode active material, a solid electrolyte and an electroconductive material; and wherein a value obtained by multiplying, by a bulk density of the solid electrolyte, a volume percentage (%) of the electroconductive material when a volume of the anode mixture is determined as 100 volume %, is 0.53 or more and 3.0 or less.

Abstract: Nanofilm-encapsulated sulfide glass solid electrolyte structures and methods for making the encapsulated glass structures involve a lithium ion conducting sulfide glass sheet encapsulated on its opposing major surfaces by a continuous and conformal nanofilm made by atomic layer deposition (ALD). During manufacture, the reactive surfaces of the sulfide glass sheet are protected from deleterious reaction with ambient moisture, and the nanofilm can be configured to provide additional performance advantages, including enhanced mechanical strength and improved chemical resistance.

Abstract: A composite electrolyte tri-layer structure, including a first layer having a first ceramic electrolyte, where the first electrolyte is stable against contact with lithium metal, a second layer having a second ceramic electrolyte, where the second electrolyte is stable against aqueous contact, and a third layer having a third non-aqueous electrolyte interposed between the first layer and second layer, wherein the first electrolyte, the second electrolyte, and the third electrolyte each have a different relative chemical stability. Also disclosed is a method of making and using the tri-layer structure, and an energy storage article or device incorporating at least one of the tri-layer structures.

Abstract: A lithium battery includes a first electrode assembly, a second electrode assembly, and a third electrode assembly in a case. The first electrode assembly and the second electrode assembly include a first lithium ion conductor layer and a second lithium ion conductor layer, respectively. The third electrode assembly includes a ceramic layer which is at least one of between a positive electrode and a separator or between a negative electrode and a separator.

Abstract: The present invention provides a positive electrode active material for a lithium secondary battery, which includes a secondary particle core formed by agglomeration of primary particles of a nickel manganese cobalt-based first lithium composite metal oxide, an intermediate layer disposed on the core and including rod-shaped nickel manganese cobalt-based second lithium composite metal oxide particles radially oriented from a center of an active material particle to a surface thereof, and a shell disposed on the intermediate layer and including a nickel manganese cobalt-based third lithium composite metal oxide, and a lithium secondary battery including the same.

Abstract: An all-solid-state secondary battery includes: a positive electrode active substance layer; a negative electrode active substance layer; and a solid electrolyte layer, in which at least one layer of the positive electrode active substance layer, the negative electrode active substance layer, or the solid electrolyte layer contains a nitrogen-containing polymer having a repeating unit having at least one of a substituent X, a substituent Y, or a substituent Z and an inorganic solid electrolyte having conductivity of ions of metal belonging to Group 1 or 2 in the periodic table.

Abstract: According to one embodiment, a composite electrolyte includes lithium-containing oxide particles and an electrolytic composition. The electrolytic composition includes lithium ions, an organic solvent and a polymer. A content of the lithium-containing oxide particles in the composite electrolyte falls within a range of from 90% by weight to 98% by weight. A specific surface area of the lithium-containing oxide particles falls within a range of 10 m2/g to 500 m2/g and is measured by a BET adsorption method using N2.

Abstract: An all-solid-state battery includes a mixture layer which has a physical mixture of a sulfide-based sodium-containing solid electrolyte material and a sulfide-based lithium-containing solid electrolyte material.

Abstract: Embodiments of the present invention may provide a wafer-capped rechargeable power source. The wafer-capped rechargeable power source may comprise a device wafer, a rechargeable power source disposed on a surface of the device wafer, and a capping wafer to encapsulate the rechargeable power source. The rechargeable power source may include an anode component, a cathode component, and an electrolyte component.

Abstract: Method of making solid-state electrolyte with composition formula Li7-xLa3Zr2-xBixO12. The method includes making a polymerized complex of the metal-ions of the composition formula, and making an agglomerate therefrom to be calcined and sintered to produce the solid-state electrolyte. A solid-state electrolyte with the composition formula Li7-xLa3Zr2-xBixO12 with superior ionic conductivity by choice of the value of x and processing conditions. A battery employing a solid-state electrolyte of superior ionic conductivity with the composition formula Li7-xLa3Zr2-xBixO12.

Abstract: Set forth herein are garnet material compositions, e.g., lithium-stuffed garnets and lithium-stuffed garnets doped with alumina, which are suitable for use as electrolytes and catholytes in solid state battery applications. Also set forth herein are lithium-stuffed garnet thin films having fine grains therein. Disclosed herein are novel and inventive methods of making and using lithium-stuffed garnets as catholytes, electrolytes and/or anolytes for all solid state lithium rechargeable batteries. Also disclosed herein are novel electrochemical devices which incorporate these garnet catholytes, electrolytes and/or anolytes. Also set forth herein are methods for preparing novel structures, including dense thin (<50 um) free standing membranes of an ionically conducting material for use as a catholyte, electrolyte, and, or, anolyte, in an electrochemical device, a battery component (positive or negative electrode materials), or a complete solid state electrochemical energy storage device.

Abstract: An integrated kesterite (e.g., CZT(S,Se)) photovoltaic device and battery is provided. In one aspect, a method of forming an integrated photovoltaic device and battery includes: forming a photovoltaic device having a substrate, an electrically conductive layer, an absorber layer, a buffer layer, a transparent front contact, and a metal grid; removing the substrate and the electrically conductive layer from the photovoltaic device to expose a backside surface of the absorber layer; forming at least one back contact on the backside surface of the absorber layer; and integrating the photovoltaic device with a battery, wherein the integrating includes connecting i) a positive contact of the battery with the back contact on the backside surface of the absorber layer and ii) a negative contact of the battery with the metal grid on the transparent front contact. An integrated photovoltaic device and battery is also provided.

Abstract: A sulfide solid electrolyte material includes a sulfide phase containing a sulfide material and an oxide phase containing an oxide formed by oxidation of the sulfide material. The oxide phase is located on a surface of the sulfide phase. The sulfide solid electrolyte material satisfies conditions: 1.28?x?4.06 and x/y?2.60, where x denotes the oxygen-to-sulfur elemental ratio measured by XPS depth profiling at the outermost surface of the oxide phase; and y denotes the oxygen-to-sulfur elemental ratio measured by XPS depth profiling at a position 32 nm, estimated from the SiO2 sputtering rate, away from the outermost surface of the oxide phase.

Abstract: A method of preparing an electrode for a lithium-ion battery includes mixing a magnetic, electrically conductive material with a lithium conductive polymer; forming tubes of the polymer and magnetic, electrically conductive material; mixing the tubes with a slurry of an electrode material; coating a current collector with the slurry; and applying a magnetic field to the slurry to align the tubes within the slurry in relation to the current collector. The aligned tubes form electrical and ionic conductive pathways within the slurry. The tubes have a length less than half a thickness of the slurry.

Abstract: A high capacity solid state composite cathode contains an active cathode material dispersed in an amorphous inorganic ionically conductive metal oxide, such as lithium lanthanum zirconium oxide and/or lithium carbon lanthanum zirconium oxide. A solid state composite separator contains an electronically insulating inorganic powder dispersed in an amorphous, inorganic, ionically conductive metal oxide. Methods for preparing the composite cathode and composite separator are provided.

Abstract: A composite solid electrolyte, including: a lithium ion conductor, and a coating layer on the lithium ion conductor, the coating layer including a silane compound represented by Formula 1: (—O)y—Si—(R1)x??Formula 1 wherein, in Formula 1, 1?x?3; 1?y?3; x+y=4; R1 is hydrogen, a halogen, a substituted or unsubstituted C1-C30 alkyl group, a substituted or unsubstituted C2-C30 alkenyl group, a substituted or unsubstituted C2-C30 alkynyl group, a substituted or unsubstituted C6-C30 aryl group, a substituted or unsubstituted C6-C30 aryloxy group, a substituted or unsubstituted C7-C30 arylalkyl group, a substituted or unsubstituted C2-C30 heteroaryl group, a substituted or unsubstituted C2-C30 heteroaryloxy group, a substituted or unsubstituted C3-C30 heteroarylalkyl group, a substituted or unsubstituted C4-C30 carbocyclic group, a substituted or unsubstituted C5-C30 carbocyclic alkyl group, a substituted or unsubstituted C2-C30 heterocyclic group, or a substituted or unsubstituted C2-C30 heterocyclic alkyl group

Abstract: A solid electrolyte for a lithium battery includes Li3+xGexAs1-xS4 where x=0 to 0.50. The value of x can be a range of any high value and any lower value from 0 to 0.50. For example, x can be 0.25 to 0.50, and x can be 0.3 to 0.4, among many other possible ranges. In one embodiment x=0.33 such that the solid electrolyte is Li3.334Ge0.334As0.666S4. A solid electrolyte for a lithium battery can include LiAsS4 wherein ½ to ? of the As is substituted with Ge. A lithium battery and a method for making a lithium battery are also disclosed.

Abstract: All-solid-state lithium-sulfur electrochemical cells and production methods thereof are described. The Li—S electrochemical cells comprise at least one multilayer component which comprises an ion-conductive solid electrolyte film, a positive electrode film containing a sulfur composite, and a negative electrode film containing lithium. Positive electrodes films, prefabricated electrolyte-positive electrode elements, their uses as well as methods of their production are also described.

Abstract: There are provided a lithium-containing garnet crystal high in density and ionic conductivity, and an all-solid-state lithium ion secondary battery using the lithium-containing garnet crystal. The lithium-containing garnet crystal has a chemical composition represented by Li7-xLa3Zr2-xTaxO12 (0.2?x?1), and has a relative density of 99% or higher, belongs to a cubic system, and has a garnet-related structure. The lithium-containing garnet crystal has a lithium ion conductivity of 1.0×10?3 S/cm or higher. Further, this solid electrolyte material has a lattice constant a of 1.28 nm?a?1.30 nm, and lithium ions occupy 96h-sites in the crystal structure. The all-solid-state lithium ion secondary battery has a positive electrode, a negative electrode and a solid electrolyte, and the solid electrolyte is constituted of the lithium-containing garnet crystal according to the present invention.

Abstract: An object of the present invention is to provide a sulfide solid electrolyte material having satisfactory ion conductivity. In the present invention, the above object is solved by providing a sulfide solid electrolyte material comprising a Li element, a Si element, a P element, a S element, and an X element (in which X represents at least one of F, Cl, Br and I), the sulfide solid electrolyte material having a crystal phase B having a peak at the position of 2?=30.12°±1.00° measured by X-ray diffractometry using CuK? ray.

Abstract: A method of manufacturing an all-solid-state battery includes a lamination step of laminating a deactivated lithium-containing negative electrode active material layer containing deactivated lithium, a solid electrolyte layer for the all-solid-state battery, and a positive electrode active material layer for the all-solid-state battery such that the solid electrolyte layer for the all-solid-state battery is disposed between the deactivated lithium-containing negative electrode active material layer and the positive electrode active material layer for the all-solid-state battery.

Abstract: A composite electrolyte including a polymeric ionic liquid; and an oligomeric electrolyte, wherein the oligomeric electrolyte includes an oligomer.

Abstract: A method for producing sulfide glass wherein phosphorus sulfide satisfying the following formula (1) is used as a raw material: 100×A/B?37??(1) wherein in the formula, A is peak areas of peaks that appear at peak positions in a range of 57.2 ppm or more and 58.3 ppm or less, and 63.0 ppm or more and 64.5 ppm or less in 31PNMR spectroscopy, and B is the total of peak areas of all peaks measured in 31PNMR spectroscopy.