A lithium secondary battery may include an electrode assembly including a positive electrode including a positive electrode active material, a negative electrode including a negative electrode active material, and a separator disposed between the positive ...

A secondary battery comprises a positive electrode plate and a negative electrode plate. The negative electrode plate comprises a negative electrode active material layer. The negative electrode active material layer comprises a negative electrode active m...

A silicon-carbon composite material includes a core portion and a shell layer disposed on a surface of the core portion, where the core portion includes a silicon-based material and/or graphite, the shell layer includes a silicon-carbon composite, and the ...

One embodiment of the present invention provides a nonaqueous electrolyte secondary battery () which comprises a positive electrode () that contains a lithium-containing transition metal composite oxide and a sulfonic acid compound that is present on the s...