CAJ | 학술논문

通过经济有效的方法制备得到一种具有长循环寿命的高效稳定性硅/硅氧碳/无定形碳的复合负极材料结构.在这种结构中，以具有稳定化学性能的硅氧碳结构作为骨架，来支撑和隔离硅纳米颗粒结构.材料中包含的无定形碳组分可提高硅/硅氧碳结构的电导性能.这种复合负极结构在0.3C电流充放电情况下，不仅能发挥出637.3 mAh?g-1的比容量，而且在经过100周的充放电循环后，其容量保持率也达到86%.这种新型硅基负极材料的设计为其他功能材料的设计提供了一种潜在可能的方法.
통과경제유효적방법제비득도일충구유장순배수명적고효은정성규/규양탄/무정형탄적복합부겁재료결구.재저충결구중，이구유은정화학성능적규양탄결구작위골가，래지탱화격리규납미과립결구.재료중포함적무정형탄조분가제고규/규양탄결구적전도성능.저충복합부겁결구재0.3C전류충방전정황하，불부능발휘출637.3 mAh?g-1적비용량，이차재경과100주적충방전순배후，기용량보지솔야체도86%.저충신형규기부겁재료적설계위기타공능재료적설계제공료일충잠재가능적방법.
A Si/SiOC/graphite composite structure with high efficiency and long-term cycling stability was synthesized using a cost-effective method. In this structure, a SiOC network with good chemical stability acts as a skeleton to support and segregate Si nanostructures. The graphite incorporated in the Si/SiOC composite is used as a conductive material to enhance the electrical conductivity. Such Si/SiOC/graphite composite anodes show excellent cycling stability, with a specific capacity of~637.3 mAh?g-1 and~86%capacity retention over 100 cycles at a rate of 0.3C. The design of this new structure has the potential to provide a basis for the development of other functional composite materials.