The invention provides a material for a lithium ion secondary battery, containing an aluminum silicate having an element molar ratio (Si/Al) of silicon (Si) to aluminum (Al) of 0.3 or more and less than 1.0, as well as an anode for a lithium ion secondary ...

The invention provides a negative electrode material for a lithium ion secondary battery, including a composite particle of a first particle containing a carbonic substance A and a second particle containing silicon, which are combined with a carbonic subs...

An anode material for a lithium ion secondary battery that includes a carbon material having an average interlayer spacing d 002 as determined by X-ray diffraction of from 0.335 nm to 0.340 nm, a volume average particle diameter (50%D) of from 1 µm to 40 ...

In a non-contact electric power transmission system that electrically charges a device in a non-contact fashion, a transmitting circuit of a contact-less power transmitter includes both an excitation element and a resonance element, both corresponding to o...

Disclosed are: a negative electrode material for a lithium ion secondary battery, which enables the production of one having a smaller irreversible capacity. That is a negative electrode material for a lithium ion secondary battery having a carbon layer fo...

Disclosed are carbon particles for a negative electrode of a lithium ion secondary battery, the carbon particles having a pore volume of pores having a size of 2 × 10 to 2 × 10 4 Å, of 0.1 ml/g or less with respect to the mass of the carbon particles; h...

There are disclosed a friction material composition which comprises a fibrous material except for asbestos, an inorganic friction regulator, an organic friction regulator and a binder, part of the inorganic friction regulator is alpha alumina and gamma alu...

A separator for fuel cell having a bending strain at break of 0.5% or more, a compressive modulus of 20 GPa or less, or a Shore hardness falling within the range of from 20 to 50, preferably made of a molded body including graphite and a resin, as well as ...

Artificial graphite particles, having a secondary particle structure in which a plurality of primary particles composed of graphite are clustered or bonded together, and having a layer structure in which the edge portion of the primary particles is bent in...

A fuel-cell separator comprising a resin and an electric conductor dispersed in the resin is produced by thermally molding a mixture comprising the electric conductor and the resin.