SECONDARY BATTERY AND METHOD FOR MANUFACTURING SAME

Embodiments of the present invention relate to a secondary battery including a silicon-based negative active material pre-doped with lithium and a method of manufacturing the same. According to the present invention, not only safety can be achieved, but also energy density, cycle characteristics, and rate characteristics can be improved, and in particular, initial discharge capacity and capacity retention can be significantly improved. 本发明的实施方案涉及二次电池及其制造方法，所述二次电池包含预掺杂锂的硅基负活性材料。二次电池不仅可以实现安全性，而且还可以提高能量密度、循环特性和速率特性，并且特别地，可以显著提高初始放电容量和容量保持。