Abstract: Provided are a negative active material and a lithium battery including the negative active material. The negative active material includes a non-carbonaceous core allowing doping or undoping of lithium ion; and a double coating layer formed on at least one portion of a surface of the non-carbonaceous core and including a first coating layer including a metal and a second coating layer including a metal oxide or a metal nitride.

Abstract: An apparatus for enhancing electrolyte wetting in a rechargeable battery, which can improve an electrolyte wetting dispersion and enhancing electrolyte wetting in the rechargeable battery by vacuating gases trapped in an electrode assembly by injecting an electrolyte into the electrode assembly and pushing the rechargeable battery, and an electrolyte wetting enhancing method utilizing the same. The electrolyte wetting enhancing apparatus includes a chamber having an internal space; a battery fixing unit fixed in the internal space of the chamber and including a plurality of rechargeable batteries mounted therein; and a pushing member pushing opposite side surfaces of the plurality of rechargeable batteries. The pushing member pushes the plurality of rechargeable batteries to enhance electrolyte wetting into an electrode assembly including the plurality of rechargeable batteries into which the electrolyte is injected.

Abstract: An apparatus for enhancing electrolyte wetting in a rechargeable battery, which can improve an electrolyte wetting dispersion and enhancing electrolyte wetting in the rechargeable battery by vacuating gases trapped in an electrode assembly by injecting an electrolyte into the electrode assembly and pushing the rechargeable battery, and an electrolyte wetting enhancing method utilizing the same. The electrolyte wetting enhancing apparatus includes a chamber having an internal space; a battery fixing unit fixed in the internal space of the chamber and including a plurality of rechargeable batteries mounted therein; and a pushing member pushing opposite side surfaces of the plurality of rechargeable batteries. The pushing member pushes the plurality of rechargeable batteries to enhance electrolyte wetting into an electrode assembly including the plurality of rechargeable batteries into which the electrolyte is injected.

Abstract: An apparatus for enhancing electrolyte wetting in a rechargeable battery, which can improve an electrolyte wetting dispersion and enhancing electrolyte wetting in the rechargeable battery by vacuating gases trapped in an electrode assembly by injecting an electrolyte into the electrode assembly and pushing the rechargeable battery, and an electrolyte wetting enhancing method utilizing the same. The electrolyte wetting enhancing apparatus includes a chamber having an internal space; a battery fixing unit fixed in the internal space of the chamber and including a plurality of rechargeable batteries mounted therein; and a pushing member pushing opposite side surfaces of the plurality of rechargeable batteries. The pushing member pushes the plurality of rechargeable batteries to enhance electrolyte wetting into an electrode assembly including the plurality of rechargeable batteries into which the electrolyte is injected.

Abstract: An apparatus for enhancing electrolyte wetting in a rechargeable battery, which can improve an electrolyte wetting dispersion and enhancing electrolyte wetting in the rechargeable battery by vacuating gases trapped in an electrode assembly by injecting an electrolyte into the electrode assembly and pushing the rechargeable battery, and an electrolyte wetting enhancing method utilizing the same. The electrolyte wetting enhancing apparatus includes a chamber having an internal space; a battery fixing unit fixed in the internal space of the chamber and including a plurality of rechargeable batteries mounted therein; and a pushing member pushing opposite side surfaces of the plurality of rechargeable batteries. The pushing member pushes the plurality of rechargeable batteries to enhance electrolyte wetting into an electrode assembly including the plurality of rechargeable batteries into which the electrolyte is injected.

Abstract: Provided are a negative active material and a lithium battery including the negative active material. The negative active material includes a non-carbonaceous core allowing doping or undoping of lithium ion; and a double coating layer formed on at least one portion of a surface of the non-carbonaceous core and including a first coating layer including a metal and a second coating layer including a metal oxide or a metal nitride.