Disclosed is a resonator for a vehicle, which reduces intake noise by using a resonance chamber for frequency tuning, includes an outer pipe having a first outer pipe with an inlet for introducing external air and a second outer pipe with an outlet for dis...

A carbon negative electrode material for a lithium secondary battery includes: a core carbon material; and a coated layer covering the core carbon material and comprising a carbon coating material and carbon fiber.

The present invention relates to a negative electrode active material for a lithium secondary battery, a preparation method thereof, and a lithium secondary battery containing the negative electrode active material. The negative electrode active material f...

A negative active material for a secondary battery, an electrode for a secondary battery including the same, a secondary battery, and a manufacturing method thereof are disclosed. The negative active material for a secondary battery includes a core carbon ...