Nankai University

Nankai Cangzhou Bohai New Area Green Chemical Research Co., Ltd.

Zhimeng Hao

Jun Chen

Haixia Li

Zhenhua Yan

Disclosed is a continuous preparation method of a large-area (100) single-crystal copper foil, a poly-crystal copper foil is connected to a reel-to-reel device, a carbon-based substrate is placed below the copper foil, and the large-area (100) single-crystal copper foil is prepared by applying a stress in a heat treatment process in a reducing/protective atmosphere under an environment with a temperature gradient. According to the invention, the stress is applied to the copper foil for the first time, and strain energy of the copper foil is accurately regulated and controlled, so as to make the strain energy become a main influence factor of grain boundary migration and lattice rotation, so that the strain energy in a growth process of the single-crystal copper foil is controlled to be dominant, and the large-area (100) single-crystal copper foil is controllably prepared through heat treatment in the reducing atmosphere.

Growing community of inventors

Tianjin, China

Zhimeng Hao