Abstract: A lithium ion secondary battery with a high capacity retention rate, and a method for producing the lithium ion secondary battery. The lithium ion secondary battery may comprise a cathode including a cathode active material layer comprising a cathode active material and Li3PO4, an anode including an anode active material layer comprising an anode active material, and an electrolyte layer being disposed between the cathode and the anode and comprising a liquid electrolyte, wherein a C1s element ratio obtained by X-ray photoelectron spectroscopy measurement of the Li3PO4 is 18.82 at % or less.

Abstract: A method for producing a lithium phosphorus oxynitride layer having high ionic conductivity is provided. The method for producing a lithium phosphorus oxynitride layer on a substrate by atomic layer deposition comprises an atmosphere interchanging step, wherein the atmosphere surrounding the substrate is alternately switched between a first atmosphere, containing a first precursor such as a dialkyl phosphoramidate and/or alkyl phosphorodiamidate, and a second atmosphere, containing a second precursor such as a lithium hexaalkyl disilazide.

Abstract: A non-aqueous electrolyte secondary battery in which it is possible to increase a capacity retention rate is provided. A non-aqueous electrolyte secondary battery is provided which includes: a positive electrode layer that includes a positive electrode active material and a conductive material; a negative electrode layer; and a non-aqueous electrolytic solution that is arranged between the positive electrode layer and the negative electrode layer, where an upper limit voltage is equal to or more than 4.5 V with respect to the oxidation-reduction potential of lithium, and the surface of the conductive material is coated with a coating layer mainly formed of P, O, C and H.

Abstract: A lithium ion secondary battery is disclosed that can inhibit generation of gas due to decomposition of a non-aqueous electrolyte solution. The lithium ion battery includes a cathode, a non-aqueous electrolyte solution and an anode, wherein the cathode includes a conductive material, a layered niobium-containing oxide that coats a surface of the conductive material, and a lithium-containing oxide active material having an upper-limit potential to a redox potential of metal lithium of no less than 4.5 V (vs. Li/Li+).

Abstract: The all-solid-state battery system that has an all-solid-state battery, the all-solid-state battery having a positive electrode active material layer, a solid electrolyte layer and a negative electrode active material layer, and a control device that controls the lower limit discharge potential of the positive electrode active material layer of the all-solid-state battery. The positive electrode active material layer and/or the solid electrolyte layer have a sulfide solid electrolyte. In addition, the positive electrode active material layer has an olivine-type positive electrode active material. In addition, the capacity of the negative electrode active material layer is lower than the capacity of the positive electrode active material layer. In addition, the control device controls the lower limit discharge potential of the positive electrode active material layer during normal use of the all-solid-state battery to within the range of 1.6 V vs. Li/Li+ to 2.1 V vs. Li/Li+.

Abstract: An active material used for an electrochemical device utilizing Li ion conduction, and capable of improving cycle stability. The object is attained by providing an active material used for an electrochemical device utilizing Li ion conduction, including an active substance capable of absorbing and releasing a Li ion, and an Na ion conductor disposed on the surface of the active substance and having a polyanionic structure.

Abstract: An all-solid-state battery having an olivine-type positive electrode active material and a sulfur solid electrolyte and a method for producing the all-solid-state battery is provided. The positive electrode active material is a positive electrode active material in which primary particles aggregate into secondary particles. The primary particles have an olivine-type positive electrode active material and a coating layer that coats all or a portion of the olivine-type positive electrode active material. The coating layer contains a transition metal derived from the olivine-type positive electrode active material, lithium, phosphorous and oxygen as components thereof, and the concentration of the transition metal is lower the concentration of the olivine-type positive electrode active material.

Abstract: A method for producing a lithium phosphorus oxynitride layer having high ionic conductivity is provided. The method for producing a lithium phosphorus oxynitride layer on a substrate by atomic layer deposition comprises an atmosphere interchanging step, wherein the atmosphere surrounding the substrate is alternately switched between a first atmosphere, containing a first precursor such as a dialkyl phosphoramidate and/or alkyl phosphorodiamidate, and a second atmosphere, containing a second precursor such as a lithium hexaalkyl disilazide.

Abstract: A positive electrode for a lithium secondary battery provided by the present invention includes a positive electrode active material layer having a particulate positive electrode active material constituted by a composite oxide containing lithium and at least one type of transition metal element, and at least one type of binding material constituted by a polymer compound having at least one functional group, and a conductive carbonaceous coating film is formed on a surface of the positive electrode active material. Further, the polymer compound constituting the binding material is molecularly bound to carbon atoms constituting the carbonaceous coating film of at least a part of the positive electrode active material, whereby a composite compound is formed from the polymer compound molecularly bound to the carbon atoms and a carbon network constituting the carbonaceous coating film containing the carbon atoms.

Abstract: A non-aqueous electrolyte secondary battery in which it is possible to increase a capacity retention rate is provided. A non-aqueous electrolyte secondary battery is provided which includes: a positive electrode layer that includes a positive electrode active material and a conductive material; a negative electrode layer; and a non-aqueous electrolytic solution that is arranged between the positive electrode layer and the negative electrode layer, where an upper limit voltage is equal to or more than 4.5 V with respect to the oxidation-reduction potential of lithium, and the surface of the conductive material is coated with a coating layer mainly formed of P, O, C and H.

Abstract: To provide a method for producing a positive electrode active material layer for lithium ion battery that can improve durability and internal resistance of lithium ion battery, and particularly lithium ion battery that operates at high voltage. The method for producing positive electrode active material layer for a lithium ion battery includes coating a substrate with positive electrode mixture slurry containing positive electrode active material, first lithium salt, second lithium salt and solvent, and drying off the solvent. First lithium salt is lithium phosphate, the second lithium salt is selected from the group including of lithium carbonate, lithium hydroxide, lithium nitrate, lithium acetate, lithium sulfate and combinations thereof, and the proportion of the second lithium salt with respect to the first lithium salt is 1 to 50 mol % based on the number of lithium atoms.

Abstract: The main object of the present invention is to provide an active material which is used for an electrochemical device utilizing Li ion conduction, and capable of improving cycle stability. The present invention attains the object by providing an active material used for an electrochemical device utilizing Li ion conduction, comprising an active substance capable of absorbing and releasing a Li ion, and an Na ion conductor disposed on the surface of the active substance and having a polyanionic structure.

Abstract: Provided is a lithium-ion secondary battery having an excellent initial capacity as well as a good capacity retention rate. The battery comprises a positive electrode comprising a positive electrode active material, a negative electrode comprising a negative electrode active material, and a non-aqueous liquid electrolyte. The negative electrode active material comprises a graphitic material that satisfies each of the following properties: (a) in its Raman spectrum obtained by Raman scattering analysis using an exciting light at a wavelength of 532 nm, having a ratio of its D-peak intensity ID to its G-peak intensity IG, an R value (ID/IG), of 0.15 or smaller; and (b) having a full width at half maximum of the G peak, ?vG, of 23 cm?1 or smaller. The secondary battery has a capacity retention rate of 70% or greater when subjected to 500 cycles of charging and discharging at a constant current rate of 2 C at 60° C.

Abstract: A battery control system controls an external charging unit in a vehicle including a vehicle body, engine, motors, secondary battery, and the external charging unit, and includes a degradation detecting unit that detects degradation of the secondary battery, during charging of the second battery by the external charging unit.

Abstract: Provided is a lithium-ion secondary battery having an excellent initial capacity as well as a good capacity retention rate. The battery comprises a positive electrode comprising a positive electrode active material, a negative electrode comprising a negative electrode active material, and a non-aqueous liquid electrolyte. The negative electrode active material comprises a graphitic material that satisfies each of the following properties: (a) in its Raman spectrum obtained by Raman scattering analysis using an exciting light at a wavelength of 532 nm, having a ratio of its D-peak intensity ID to its G-peak intensity IG, an R value (ID/IG), of 0.15 or smaller; and (b) having a full width at half maximum of the G peak, ?vG, of 23 cm?1 or smaller. The secondary battery has a capacity retention rate of 70% or greater when subjected to 500 cycles of charging and discharging at a constant current rate of 2 C at 60° C.

Abstract: A battery control system controls an external charging unit in a vehicle including a vehicle body, engine, motors, secondary battery, and the external charging unit, and includes a degradation detecting unit that detects degradation of the secondary battery, during charging of the second battery by the external charging unit.

Abstract: A battery control system controls an external charging unit in a vehicle including a vehicle body, engine, motors, secondary battery, and the external charging unit, and includes a degradation detecting unit that detects degradation of the secondary battery, during charging of the second battery by the external charging unit.

Abstract: A battery control system controls an external charging unit in a vehicle including a vehicle body, engine, motors, secondary battery, and the external charging unit, and includes a degradation detecting unit that detects degradation of the secondary battery, during charging of the second battery by the external charging unit.

Abstract: The invention provides a method of diagnosing a malfunction in an abnormal voltage detecting apparatus, which includes breaking an electrical connection between a secondary battery (100) and an abnormal voltage detecting apparatus (40, 31) and connecting the abnormal voltage detecting apparatus to a direct current voltage generating portion (20) that is different from the secondary battery (100), applying direct current voltage that has a predetermined voltage value that is outside of a normal voltage range to the abnormal voltage detecting apparatus (40) using the direct current voltage generating portion, and determining that there is a malfunction in the abnormal voltage detecting apparatus if the abnormal voltage detecting apparatus does not determine that the voltage is abnormal.

Abstract: A positive electrode for a lithium secondary battery provided by the present invention includes a positive electrode active material layer having a particulate positive electrode active material constituted by a composite oxide containing lithium and at least one type of transition metal element, and at least one type of binding material constituted by a polymer compound having at least one functional group, and a conductive carbonaceous coating film is formed on a surface of the positive electrode active material. Further, the polymer compound constituting the binding material is molecularly bound to carbon atoms constituting the carbonaceous coating film of at least a part of the positive electrode active material, whereby a composite compound is formed from the polymer compound molecularly bound to the carbon atoms and a carbon network constituting the carbonaceous coating film containing the carbon atoms.