| 摘要 |
Provided is a lithium secondary battery which is capable of preventing high-temperature short circuit by incorporation of a clad negative electrode tab having a nickel/copper bilayer structure. For this purpose, the present invention provides a lithium secondary battery comprising an electrode assembly including a positive electrode plate, a separator, a negative electrode plate, a positive electrode tab drawn from the positive electrode plate and a clad negative electrode tab drawn from the negative electrode plate and formed of a Ni/Cu bilayer; a can having an open upper part to house the electrode assembly; and a cap assembly for sealing the open upper part of the can, wherein the positive electrode plate, the separator and the negative electrode plate are sequentially wound into a jelly roll configuration.
|
