title: Improving the Cycling Stability of Si/Ni Negative Composite Through Introducing the SiOC Skeleton.
abstract: A Si/Ni/SiOC (SNS) composite structure with high efficiency and long-term cycling stability was synthesized by a cost-effective and scalable method. In this structure, a SiOC net with favorably physical and chemical stability acts as a skeleton to support and segregate Si-Ni mixed powders. The electrochemical performance of Si-Ni as a negative for Li-ion battery had been largely improved through introducing a stable SiOC skeleton structure as buffer base. Compared with Si-Ni mixed powders, the SNS composite negative exhibits excellent long-term cycling stability and capacity. Such SNS composite negative shows excellent cycling stability with a specific capacity of 505.5 mA· h · g(-1) and 84% capacity retention over 25 cycles at 0.2 C rate, which has the perspective application in the future high energy density li-ion batteries. In the meantime, the design and fabrication of this structure has the potential to provide a way for the other functional composite materials in the semiconductive field.
authors.forename: Jian-Tao
authors.initials: JT
authors.lastname: Wang
authors.forename: Yao
authors.initials: Y
authors.lastname: Wang
authors.forename: Bin
authors.initials: B
authors.lastname: Huang
authors.forename: Juan-Yu
authors.initials: JY
authors.lastname: Yang
authors.forename: Ao
authors.initials: A
authors.lastname: Tan
authors.forename: Shi-Gang
authors.initials: SG
authors.lastname: Lu