Fujitsu Corporation

Tomochika Kurita

Jiyunichi Iwata

Tsutomu Tanaka

Tamotsu Yamamoto

Kensuke Yoshida

Masaaki Sasa

Satoru Watanabe

Kenji Homma

Jyunichi Iwata

A positive electrode material has diffraction peaks at 2θ=13.1°±0.2°, 14.0°±0.2°, and 18.4°±0.2° in X-ray diffraction (2θ=5° to 90°) using synchrotron radiation having a wavelength of 1 Å, has a monoclinic crystal structure belonging to a space group P2/c, and is represented by a composition formula LiCoPO(−0.2≤x≤0.2).

Method of manufacturing positive electrode material

A crystal analysis method for a computer to execute a process includes creating a graph that indicates data of repeating unit cell in an ionic crystal and data of an adjacent repeating unit cell that is adjacent to the repeating unit cell; analyzing the ionic crystal based on the graph; and when a number of first intra-cell node that indicates data of an anionic atom bonded to a cationic atom in the repeating unit cell is n, setting a number of second intra-cell node that indicates data of the anionic atom in the repeating unit cell n−1 or less, wherein the data of repeating unit cell includes a plurality of intra-cell nodes that indicate data of atoms in the repeating unit cell, and the plurality of intra-cell nodes include the first intra-cell node and the second intra-cell node.

Crystal analysis method, crystal analysis device, and storage medium

A positive electrode material for a secondary battery, wherein the positive electrode material includes a triclinic crystal structure.

Positive electrode material for secondary battery, method for manufacturing the same, and lithium-ion secondary battery

A positive electrode material for a secondary battery, includes: a composition represented by LiFe(PO)(&#x2212;0.80&#x2264;x&#x2264;0.60, &#x2212;0.30&#x2264;y&#x2264;0.40, and &#x2212;0.30&#x2264;x+y&#x2264;0.30); and tungsten, wherein the positive electrode material has a triclinic crystal structure.

Method for producing positive electrode material

A positive electrode material for a secondary battery, wherein the positive electrode material includes a triclinic crystal structure and is represented by Li(FeM)(PO), where &#x2212;0.65&#x2264;x&#x2264;0.75, 0.0&#x3c;z&#x2264;0.7, and M represents a divalent metal other than Fe.

The present invention relates to an all-solid rechargeable battery, a method for manufacturing the same, and an electronic apparatus, makes the annealing step for crystallization unnecessary in the all-solid rechargeable battery. The present invention includes a substrate, a negative electrode, a solid electrolyte, and a positive electrode, wherein LiFePOin an amorphous state is used as the positive electrode.

All-solid rechargeable battery, method for manufacturing same, and electronic apparatus

An uninterruptible power-supply apparatus has a storage battery including a first electrode and a second electrode, an output cable configured to output a discharge current of the storage battery to an external power line to be a backup target, and a first connection portion configured to externally take out a voltage of the first electrode.

Uninterruptible power-supply apparatus and method of using the same

An information processing system includes: a plurality of information processing devices; a plurality of power storage devices configured to supply DC power to any of the plurality of information processing devices; a plurality power source devices configured to supply DC power to the plurality of power storage devices; and an arithmetic unit configured to, in accordance with the charged state of any of the plurality of power storage devices and a task to be processed by the information processing device to which DC power is supplied from the power storage device, allocating the task to be processed by the information processing device to an information processing device to which DC power is not supplied from the power storage device.

Growing community of inventors

Kawasaki, Japan

Tomochika Kurita