Abstract: A carbon material composition may easily increase a density of a negative electrode plate and provide a secondary battery that is excellent in all of an initial efficiency, rate characteristics, and remaining capacity retention rate after high-temperature storage, and as a result, to provide a high-performance secondary battery. Such a carbon material composition may include a carbon material (A) and a carbon material (B), wherein the carbon material (A) has a cumulative pore volume of 0.02 mL/g or more in a range of pore diameters of 0.01 ?m or more and 1 ?m or less, and a ratio of a pore diameter to a volume-based average particle diameter, PD/d50 (%), expressed by formula (1) of 1.8 or less: PD / d ? 50 ? ( % ) = ( [ mode ? pore ? diameter ? ( PD ) ? in ? a ? range ? of ? pore ? diameters ? of 0.

Abstract: An object is to provide a coated carbon material that can provide a secondary battery excellent in initial efficiency and high in peel strength, and as a result, to provide a high-performance secondary battery, and is achieved by a coated carbon material for a secondary battery, capable of intercalation/deintercalation a lithium ion, the carbon material having a specified coating film with an organic compound.

Abstract: The present invention has been made in view of such background arts, and an object thereof is to provide a coated carbon material that can provide a secondary battery not only maintaining capacity, but also having excellent initial efficiency, as compared with a conventional art, and as a result, to provide a high-performance secondary battery. A coated carbon material where a carbon material is coated with a coating film, in which the coating film includes at least one selected from the following compound (X) and a crosslinked product of the following compounds (Y): (X): an acetoacetyl group-containing resin, and (Y): a polyvinyl alcohol-based resin and a silicon element-containing compound.

Abstract: The present invention provides a non-aqueous electrolytic solution which can be handled industrially stably, and which allows for achieving a good durability performance, particularly, a good capacity retention rate during repeated charging and discharging, of an energy device typified by a non-aqueous electrolytic solution secondary battery. The non-aqueous electrolytic solution contains a compound(s) represented by the following general formula(e) (A1) and/or (A2). In formula (A1), X1 represents a halogen atom; each of R1, R2, R5 and R6 independently represents a hydrogen atom, a halogen atom, or a hydrocarbon group having 10 or less carbon atoms optionally substituted with a halogen atom; and each of R3 and R4 independently represents a halogen atom, or a hydrocarbon group having 10 or less carbon atoms optionally substituted with a halogen atom; wherein at least two of R1 to R6 may be bonded to each other to form a ring.