Natural Science Foundation of Shandong ProvinceZR2020QE072, Qingdao Key R&D Program21-1-2-8-cl
硅（Si）基负极因具有超高的理论比容量(4200 mAh g-1)，有望替代石墨电极(理论比容量372 mAh·g-1)成为新一代的高容量锂离子电池负极。但Si负极在电池循环过程中所引起的巨大体积膨胀，会导致Si颗粒的粉碎、电接触失效以及其它副反应，最终导致电池容量的快速衰减以及循环稳定性变差。粘合剂是锂离子电池负极的重要组成部分之一，虽然含量很少，但在稳定电极循环中起着关键作用。本文主要对Si基负极电池粘合剂的溶剂类型以及聚合结构（包括线性、交联以及共轭导电聚合物）进行了分类，并在粘合机理、优点、局限性以及性能等方面进行了阐述，最后对亟待深入研究的方向和发展前景进行了展望。
Silicon-based anode has a high theoretical specific capacity (4200 mAh g-1), which can alternative graphite electrode and become a new generation of high-capacity lithium-ion batteries anode. However, the huge volume expansion caused by the Si anode in the battery cycle will lead to the crushing of Si particles, electrical contact failure and other side reactions, and eventually lead to the rapid decay of battery capacity and the deterioration of the cycle stability. Binders are an important component of the negative electrode of lithium-ion batteries and, although in small amounts, play a key role in stabilizing the electrode cycle. In this paper, the solvent types and polymerization structures (including linear, cross-linked and conjugated conductive polymers) of Si-based negative battery adhesives are classified, and the adhesion mechanism, advantages, limitations and properties are described. Finally, the direction and development prospects of further research are prospected.