Synergistically engineered self-standing silicon/carbon composite arrays as high performance lithium battery anodes

Abstract

The synergistically engineered self-standing silicon/carbon composite arrays exhibit unprecedented lithium storage performance, including a high specific capacity of 1510 mA h g⁻¹ based on the total electrode weight, extraordinary cycling stability with nearly 100% capacity retention over 600 cycles, and areal capacity approaching the value of commercial lithium-ion batteries (3.9 mA h cm⁻²).