Abstract: The negative electrode for a lithium ion secondary battery includes: a current collector; and a negative electrode active material layer which is in contact with at least one surface of the current collector, the negative electrode active material layer has a negative electrode active material and a binder, the negative electrode active material contains a material that can be alloyed with Li, the binder contains a predetermined copolymer, and a specific surface area of a surface of the negative electrode active material layer on a side opposite to the current collector side is 7.0 m2/g or more and 16.0 m2/g or less.

Abstract: A negative electrode for a lithium ion secondary battery includes a current collector and an active material-containing layer disposed on the current collector. The active material-containing layer includes: a first negative electrode active material including a carbon material; a second negative electrode active material including a metal element or a metalloid element as a constituent element, the metal element or the metalloid element being capable of forming an alloy with lithium; and a binder. The first negative electrode active material contains a spherical graphite, and the binder contains an acrylic resin.

Abstract: The secondary cell with the nonaqueous electrolyte includes: the wound body in which an electrode group including the positive electrode, the negative electrode, and a separator sandwiched therebetween is wound in a flat shape; and the nonaqueous electrolyte having the wound body immersed therein. The wound body, in the central section within at least five layers from the inside of the wound body, includes a gap between adjacent layers of the electrode group and a length Gn of the gap in a major axis direction of the wound body when viewed from the axial direction of the wound body fulfills a relationship of 0.09/n?0.003?Gn?0.98/n?0.093 (1?n?4).

Abstract: A negative electrode of a lithium ion secondary battery of the present invention includes a current collector (32) and a negative electrode active material layer (34) provided on the current collector (32). In the negative electrode of a lithium ion secondary battery, the negative electrode active material layer (34) includes carbon particles, a degree of graphitization of the carbon particles is 1.0 or more and 1.5 or less and a degree of orientation of the carbon particles is 50 or more and 150 or less; where, the degree of graphitization is a ratio (P101/P100) between a peak intensity P101 of the (101) plane and a peak intensity P100 of the (100) plane in an X-ray diffraction pattern and the degree of orientation is a ratio (P002/P110) between a peak intensity P002 of the (002) plane and a peak intensity P110 of the (110) plane in an X-ray diffraction pattern.

Abstract: A storage system includes a holder, and a plurality of storage devices arranged along a line in the holder, each of the storage devices including first and second connection interfaces. Each of the first connection interfaces is electrically connected to a second connection interface of another storage device and each of the second connection interfaces is electrically connected to a first connection interface of another storage device, such that an electrical loop connection is formed through the plurality of the storage devices.

Abstract: A storage system includes a holder, and a plurality of storage devices arranged along a line in the holder, each of the storage devices including first and second connection interfaces. Each of the first connection interfaces is electrically connected to a second connection interface of another storage device and each of the second connection interfaces is electrically connected to a first connection interface of another storage device, such that an electrical loop connection is formed through the plurality of the storage devices.

Abstract: A storage system includes a holder, and a plurality of storage devices arranged along a line in the holder, each of the storage devices including first and second connection interfaces. Each of the first connection interfaces is electrically connected to a second connection interface of another storage device and each of the second connection interfaces is electrically connected to a first connection interface of another storage device, such that an electrical loop connection is formed through the plurality of the storage devices.

Abstract: A negative electrode for a lithium ion secondary battery includes a current collector and an active material-containing layer disposed on the current collector. The active material-containing layer includes: a first negative electrode active material including a carbon material; a second negative electrode active material including a metal element or a metalloid element as a constituent element, the metal element or the metalloid element being capable of forming an alloy with lithium; and a binder. The first negative electrode active material contains a spherical graphite, and the binder contains an acrylic resin.

Abstract: A negative electrode of a lithium ion secondary battery of the present invention includes a current collector (32) and a negative electrode active material layer (34) provided on the current collector (32). In the negative electrode of a lithium ion secondary battery, the negative electrode active material layer (34) includes carbon particles, a degree of graphitization of the carbon particles is 1.0 or more and 1.5 or less and a degree of orientation of the carbon particles is 50 or more and 150 or less; where, the degree of graphitization is a ratio (P101/P100) between a peak intensity P101 of the (101) plane and a peak intensity P100 of the (100) plane in an X-ray diffraction pattern and the degree of orientation is a ratio (P002/P110) between a peak intensity P002 of the (002) plane and a peak intensity P110 of the (110) plane in an X-ray diffraction pattern.

Abstract: According to one embodiment, a power control system includes a power controlled unit, a first power controller configured to generate a first control signal that controls the power of the power controlled unit, and a second power controller including a signal holding unit configured to hold the first control signal and to transmit a second control signal including information identical to the information of the first control signal to the power controlled unit, the second power controller being different from the first power controller as hardware.

Abstract: A device having first and second connectors configured for physical connection with a cable having first and second wires, wherein each of the first and second connectors includes a first pin for connection with a first wire of the cable and a second pin for connection with a second wire of the cable, includes a ground terminal connected to the first pin of the first connector and to the second pin of the second connector; a first pull-up resistor connected to the second pin of the first connector; a second pull-up resistor connected to the first pin of the second connector; and a signal detecting circuit connected to the second pin of the first connector through the first pull-up resistor and to the first pin of the second connector through the second pull-up resistor, the signal detecting circuit being configured to detect a signal level of second pin of the first connector and to detect a signal level of first pin of the second connector.

Abstract: A storage system includes a memory unit group that includes a first memory unit and a plurality of second memory units, and the first memory unit is connected to the plurality of second memory units so that data can be transmitted between the first memory unit and the second memory units. The plurality of second memory units is mounted on a same first substrate. One second memory unit of the plurality of second memory units cooperates with the first memory unit and does not cooperate with the other second memory units of the plurality of second memory units.

Abstract: A storage system includes a holder, and a plurality of storage devices arranged along a line in the holder, each of the storage devices including first and second connection interfaces. Each of the first connection interfaces is electrically connected to a second connection interface of another storage device and each of the second connection interfaces is electrically connected to a first connection interface of another storage device, such that an electrical loop connection is formed through the plurality of the storage devices.

Abstract: Conventional ion rechargeable batteries having an electrode layer on an electrolyte layer suffer from an impurity layer formed at the interface, degrading performance. Conventional batteries with no such impurity layer have a problem of weak interface bonding. In the present invention, in a baking process step after an electrode layer is laminated on an electrolyte layer, materials for an electrode layer and an electrolyte layer are selected such that an intermediate layer formed of a reaction product contributing to charging and discharging reactions is formed at the interface of the electrode layer and the electrolyte layer. In addition, a paste that an active material is mixed with a conductive material at a predetermined mixing ratio is used to form a positive electrode layer and a negative electrode layer. Reductions in electrode resistance and interface resistance and improvement of charging and discharging cycle characteristics are made possible.

Abstract: According to one embodiment, a power control system includes a power controlled unit, a first power controller configured to generate a first control signal that controls the power of the power controlled unit, and a second power controller including a signal holding unit configured to hold the first control signal and to transmit a second control signal including information identical to the information of the first control signal to the power controlled unit, the second power controller being different from the first power controller as hardware.

Abstract: This is to provide an all solid state secondary battery which can be produced by an industrially employable method capable of mass-production and has excellent secondary battery characteristics.

Abstract: In multilayer wholly solid lithium ion secondary batteries, a laminate having a collector layer of material with high conductivity superimposed on an active material layer has been disposed so as to attain a lowering of battery impedance. Consequently, in the fabrication of each of positive electrode layer and negative electrode layer, stacking of three layers consisting of an active material layer, a collector layer and an active material layer has been needed, thereby posing the problem of complex processing and high production cost. In the invention, a positive electrode layer and a negative electrode layer are fabricated from paste consisting of active material mixed with conductive substance in a given mixing ratio, and no collector layer is disposed. This realizes process simplification and manufacturing cost reduction without deterioration of battery performance and has also been effective in enhancing of battery performance, such as improvement to cycle characteristics.

Abstract: A storage system includes a memory unit group that includes a first memory unit and a plurality of second memory units, and the first memory unit is connected to the plurality of second memory units so that data can be transmitted between the first memory unit and the second memory units. The plurality of second memory units is mounted on a same first substrate. One second memory unit of the plurality of second memory units cooperates with the first memory unit and does not cooperate with the other second memory units of the plurality of second memory units.

Abstract: Disclosed is a lithium ion secondary battery that has a simple structure, is easily produced, and wherein short circuits do not arise. The lithium ion secondary battery comprises an active material being contained in a matrix comprising a laminated body that includes a positive current collector and a negative current collector which are laminated on each other via a solid electrolyte layer, the solid electrolyte layer includes an active material in a matrix made of solid electrolyte, and a ratio of the volume of the solid electrolyte and the volume of the active material being 90:10-65:35. Also, the active material may also be contained in a matrix of a conductive substance of the positive current collector and/or the negative current collector.

Abstract: This is to provide an all solid state secondary battery which can be produced by an industrially employable method capable of mass-production and has excellent secondary battery characteristics.