Advances in research on the inhibitory effect of 3D current collector structures for lithium dendrites

Abstract

Lithium is considered the "Holy Grail" of anode materials in lithium metal batteries, due to its extremely low electrochemical potential and high specific capacity. However, during the charging/discharging process, the...

Engineering High-Performance Li Metal Batteries through Dual-Gradient Porous Cu-CuZn Host

“…Presently, commercial Li-ion batteries employing graphite anodes achieve a capacity of 250.76 mAh g –1 at a thickness of 100 μm (90 μm graphite +10 μm Cu foil). − To achieve similar capacity at the same thickness with a Li–Cu composite anode, a porosity of 50% becomes indispensable . Balancing heightened porosity demands while ensuring adequate conductivity, strength, ultrathin thickness, and appropriate pore size distribution (<10 μm) in porous Cu is essential. ,− This guarantees stability during processing, welding, Li loading, and calendering in battery assembly processes. Composite anodes meeting these physical properties and processable characteristics have rarely been reported in the literature.…”