Abstract: Provided are an electrode for a lithium ion secondary battery, and a lithium ion secondary battery, in which a reduction in the permeability of an electrolyte solution and an increase in resistance even when the density of the electrode is increased, can be suppressed. In the electrode for a lithium ion secondary battery, a layer in which the diffusion rate of an electrolyte solution is greater than in an active material layer is disposed between a current collector and an active material layer. Specifically, the electrode for a lithium ion secondary battery includes a current collector, and an electrode active material layer containing an electrode active material, the electrode active material layer being formed on at least one side of the current collector, in which an electroconductive layer containing solid electrolyte particles and electroconductive particles is disposed between the current collector and the electrode active material layer.

Abstract: A lithium-metal secondary battery, which includes a highly reduction-resistant electrolytic solution, including 2 to 6 mol of electrolyte per L of solvent and also having a lithium deposition dissolution efficiency of 98.5% or more, which lithium deposition dissolution efficiency is the proportion of the amount of redissolution of lithium to the amount thereof deposited on the copper surface, wherein the relative density of a lithium metal layer in a negative electrode is 40 to 85%. In addition, a lithium-metal secondary battery, which includes a highly oxidation-resistant electrolytic solution, including 2 to 6 mol of electrolyte per L of solvent and also having a voltage of 5.5 V or more when the current density is 0.4 mA/cm2 using lithium as a counter electrode and platinum as a working electrode, wherein the relative density of a lithium metal layer in a negative electrode is 70 to 95%.

Abstract: To provide a lithium secondary battery including a positive electrode, a negative electrode and an electrolytic solution, wherein the positive electrode includes an interlayer and a positive electrode mixture layer sequentially stacked on a positive electrode current collector, and the interlayer contains a pre-doping agent, a conductive aid and a binder.

Abstract: Provided are: a lithium-ion secondary battery electrode with which it is possible to realize a battery having high volume energy density and in which capacity reduction due to repeated charging and discharging is suppressed even when the amount of electrolytic solution held by the electrode is low; a lithium-ion secondary battery using said electrode; and a method for manufacturing the lithium-ion secondary battery electrode. A lithium-ion secondary battery electrode in which a highly dielectric oxide solid and the electrolytic solution are positioned in the gaps between active material particles of an electrode mixture layer, wherein: the electrode mixture layer is prepared without using water that is reactive with the highly dielectric oxide solid; and the arrangement of the highly dielectric oxide solid in the electrode mixture layer is specified.

Abstract: There is provided a lithium metal secondary battery including a positive electrode, a negative electrode, and a solid electrolyte layer between the positive electrode and the negative electrode, the negative electrode including a negative electrode current collector and a protective layer, and the protective layer including a metal capable of being alloyed with lithium and having a volumetric capacity density of 1000 mAh/L or more.

Abstract: Provided are electrolytic solution absorbing particles that have an electrolytic solution retention property and can increase a lithium ion transport characteristic, as well as a self-supporting sheet that includes the same, a lithium-ion secondary battery electrode that includes the same, a separator that uses the same, and a lithium-ion secondary battery that uses the same. These particles are particles wherein a resin layer that can absorb an electrolytic solution is provided on a surface of a highly dielectric oxide solid. Specifically, these particles are electrolytic solution absorbing particles that have the resin layer that can absorb the electrolytic solution on the surface of the highly dielectric oxide solid.

Abstract: Provided is a positive electrode including: a positive electrode current collector; and a positive electrode material mixture layer, the positive electrode material mixture layer including a positive electrode active material and dielectric particles, the positive electrode having a peak pore diameter smaller than or equal to the median diameter of the dielectric particles. Also provided is an electricity storage device including: the positive electrode; a negative electrode; and an electrolytic solution.

Abstract: Provided is a non-aqueous electrolyte secondary battery capable of reliably operating an electricity shut-off mechanism at overcharging without deteriorating battery performance. The non-aqueous electrolyte secondary battery (1) includes, in a container (2): a positive electrode (41); in-container positive electrode terminals (21) and (23); a negative electrode (42); in-container negative electrode terminals (22) and (24); a non-aqueous electrolyte solution; and an electricity shut-off mechanism (68b) capable of shutting off energization with the outside of the container when the internal pressure of the container rises. A solid electrolyte layer that produces gas allowing the electricity shut-off mechanism (68b) to be operated is included in at least one member of a positive electrode mixture layer unformed portion (41b), a negative electrode mixture layer unformed portion (42b), the in-container positive electrode terminals (21) and (23), and the in-container negative electrode terminals (22) and (24).

Abstract: Provided is a positive electrode including: a positive electrode current collector; and a positive electrode material mixture layer including a positive electrode active material and dielectric particles, the dielectric particles including ionically-conductive particles and non-ionically-conductive particles. Also provided is an electricity storage device including: the positive electrode; a negative electrode; and an electrolytic solution.

Abstract: The present disclosure is intended to provide a negative electrode for a lithium-ion secondary battery, the negative electrode being capable of reducing an increase in internal resistance even when charge-discharge cycles are repeated, and enabling production of a lithium-ion secondary battery with excellent durability against the charge-discharge cycles. A negative electrode for a lithium-ion secondary battery includes: an electrode material mixture layer including graphite particles as a negative electrode active material, and a high dielectric inorganic solid. The graphite particles include graphite particles A having an average particle diameter and graphite particles B having a different average particle diameter. The graphite particles each include, on a surface thereof, a portion in contact with the high dielectric inorganic solid and a portion in contact with an electrolytic solution.

Abstract: Provided are graphite material particles that are for use in lithium-ion secondary batteries, make lithium-ion secondary batteries less vulnerable to an increase in internal resistance during charge and discharge cycles, and allow lithium-ion secondary batteries to have high durability to charge and discharge cycles. The graphite material particles for use in a lithium-ion secondary battery each have a structure including: a graphite particle; and a high-dielectric inorganic solid located in and integrated with the graphite particle. The high-dielectric inorganic solid preferably has at least one ion conductivity selected from Li ion conductivity, Na ion conductivity, and Mg ion conductivity, and preferably has an ionic conductivity of 10?7 S/cm or more and a relative permittivity of 10 or more when in the form of a powder.

Abstract: Provided are an electrode for a lithium-ion secondary battery enabling the realization of a battery that has a high volume energy density and exhibits a low level of degradation in output due to repeated charging and discharging even in a case in which the amount of an electrolyte solution held by the electrode is low, and a lithium-ion secondary battery including the positive electrode. The coexistence of a high dielectric oxide solid and a highly concentrated electrolyte solution in a gap between articles of an active material inside the electrode is achieved.

Abstract: Provided is an electrode that is for use in lithium-ion secondary batteries, makes lithium-ion secondary batteries less vulnerable to a decline in capacity during charge and discharge cycles, and allows lithium-ion secondary batteries to have high durability to charge and discharge cycles. The electrode for use in lithium-ion secondary batteries includes an electrode material mixture layer including an electrode active material and a high-dielectric inorganic solid, in which the electrode active material has a surface site in contact with the high-dielectric inorganic solid and has another surface site to be in contact with an electrolytic solution, and the high-dielectric inorganic solid is a Na- or Mg-based high-dielectric inorganic solid.

Abstract: To provide a porous dielectric particle capable of achieving a lithium ion secondary battery having a high volumetric energy density, a high output, and being scarcely deteriorated in the output property even after charge and discharge are repeated, an electrode for a lithium ion secondary battery including the porous dielectric particle, and a lithium ion secondary battery using the electrode for a lithium ion secondary battery. A porous dielectric oxide is used, and this is dispersed and disposed in gaps between active material particles of an electrode. Specifically, as a particle to be blended in an electrode of a lithium ion secondary battery including an electrolytic solution, porous dielectric particles in which at least a part of a surface of porous core particles is coated with dielectric oxide is used.

Abstract: Provided is a non-aqueous electrolyte secondary battery capable of reliably operating an electricity shut-off mechanism at overcharging without deteriorating battery performance. The non-aqueous electrolyte secondary battery (1) includes, in a container (2): a positive electrode (41); in-container positive electrode terminals (21) and (23); a negative electrode (42); in-container negative electrode terminals (22) and (24); a non-aqueous electrolyte solution; and an electricity shut-off mechanism (68b) capable of shutting off energization with the outside of the container when the internal pressure of the container rises. A solid electrolyte layer that produces gas allowing the electricity shut-off mechanism (68b) to be operated is included in at least one member of a positive electrode mixture layer unformed portion (41b), a negative electrode mixture layer unformed portion (42b), the in-container positive electrode terminals (21) and (23), and the in-container negative electrode terminals (22) and (24).

Abstract: Provided are composite particles, a method for producing composite particles, a lithium ion secondary battery electrode, and a lithium ion secondary battery, that can realize a lithium ion secondary battery having an excellent durability and having a large capacity due to a reduction in internal resistance. A lithium ion secondary battery comprises: a positive electrode provided with a positive electrode active material layer containing a positive electrode active material and a conduction auxiliary agent; a negative electrode provided with a negative electrode active material layer containing a negative electrode active material and a conduction auxiliary agent. At least one of the positive electrode active material layer and the negative electrode active material layer contains a conduction auxiliary agent-lithium ion conductive inorganic solid electrolyte composite in which at least a portion of the surface of a lithium ion conductive inorganic solid electrolyte is coated by a conduction auxiliary agent.

Abstract: Provided are lithium ions for achieving a lithium-ion secondary battery which is less susceptible to rises in internal resistance even over repeated charge-discharge cycles and which has excellent durability with respect to charge-discharge cycles. A lithium-ion secondary battery 1 is provided with: a positive electrode; a negative electrode 7; a separator 8; an electrolyte solution 9; and a container 10 that houses the positive electrode 4, the negative electrode 7, the separator 8, and the electrolyte solution 9. At least one of the positive electrode mixture layer 3 or the negative electrode mixture layer 6 contains high-dielectric oxide solids 13, and the positive electrode active material 11 or the negative electrode active material 12 has a surface with portions thereof in contact with the high-dielectric oxide solids 13 and portions thereof in contact with the electrolyte solution 9.

Abstract: Provided are an electrode for a lithium ion secondary battery, and a lithium ion secondary battery, in which a reduction in the permeability of an electrolyte solution and an increase in resistance even when the density of the electrode is increased, can be suppressed. In the electrode for a lithium ion secondary battery, a layer in which the diffusion rate of an electrolyte solution is greater than in an active material layer is disposed between a current collector and an active material layer. Specifically, the electrode for a lithium ion secondary battery includes a current collector, and an electrode active material layer containing an electrode active material, the electrode active material layer being formed on at least one side of the current collector, in which an electroconductive layer containing solid electrolyte particles and electroconductive particles is disposed between the current collector and the electrode active material layer.

Abstract: Provided is an electrode for a secondary cell capable of obtaining excellent output values and input values when used in the secondary cell. The electrode for a secondary cell is formed of an electrode mixture layer molded body formed of an active material and at least one of a carbon nanotube and a three-dimensional carbon nanotube fiber bundle skeleton formed of a plurality of carbon nanotubes that intersect one another to form an aggregation, which are in intimate contact with the surface of the active material; and a current collector layered on the electrode mixture layer molded body. The electrode mixture layer molded body includes a first roughened surface, and the current collector includes a second roughened surface. The first roughened surface of the electrode mixture layer molded body and the second roughened surface of the current collector are pressed and attached to each other.

Abstract: Provided is an electrode for a secondary cell capable of obtaining excellent output values and input values when used in the secondary cell. The electrode for a secondary cell is formed of an electrode mixture layer molded body formed of an active material and at least one of a carbon nanotube and a three-dimensional carbon nanotube fiber bundle skeleton formed of a plurality of carbon nanotubes that intersect one another to form an aggregation, which are in intimate contact with the surface of the active material; and a current collector layered on the electrode mixture layer molded body. The electrode mixture layer molded body includes a first roughened surface, and the current collector includes a second roughened surface. The first roughened surface of the electrode mixture layer molded body and the second roughened surface of the current collector are pressed and attached to each other.