Abstract:
A negative active material, a method for preparing the negative active material and a lithium ion battery comprising the same are provided. The negative active material may comprise: a core, an intermediate layer consisting of a first material and an outmost layer consisting of a second material, which is coated on a surface of the intermediate layer. The first material may be at least one selected from the group consisting of the elements that form alloys with lithium, and the second material may be at least one selected from the group consisting of transition metal oxides, transition metal nitrides and transition metal sulfides.
Abstract:
A solid electrolyte material and a method for preparing the same, a solid electrolyte and a battery are provided. The solid electrolyte material includes: at least one of crystalline inorganic solid electrolyte having a formula of Li 10±1 AB 2 X 12 (I); and at least one of amorphous inorganic solid electrolyte having a formula of yLi 2 X'-(100-y)P 2 X' 5 (II).
Abstract:
A solid electrolyte contains an internal component and an external component coated on a surface of the internal component. The internal component is represented by a formula Li 1+x M x Zr 2-x (PO 4 ) 3 , M is one or more elements selected from a group consisting of Al, La, Cr, Ga, Y, and In, and 0.05≤x≤0.4. The external component contains a plastic deformable material and has a conductivity of about 10 -7 S/cm to about 10 -5 S/cm. A method of preparing the solid electrolyte and a lithium ion battery including the solid electrolyte are also provided.
Abstract:
A negative active material, a method of preparing the negative active material and a lithium ion battery comprising the negative active material are provided. The negative active material may comprise: a core (1) composed of a carbon material; and a plurality of composite materials (2) attached to a surface of the core (1), each of which may comprise a first material (21) and a second material (22) coated on the first material (21), in which the first material (21) may be at least one selected from the elements that may form an alloy with lithium, and the second material (22) may be at least one selected from the group consisting of transition metal oxides, transition metal nitrides and transition metal sulfides.