Self-Healing Systems in Silicon Anodes for Li-Ion Batteries

Abstract

Self-healing is the capability of materials to repair themselves after the damage has occurred, usually through the interaction between molecules or chains. Physical and chemical processes are applied for the preparation of self-healing systems. There are different approaches for these systems, such as heterogeneous systems, shape memory effects, hydrogen bonding or covalent–bond interaction, diffusion, and flow dynamics. Self-healing mechanisms can occur in particular through heat and light exposure or through reconnection without a direct effect. The applications of these systems display an increasing trend in both the R&D and industry sectors. Moreover, self-healing systems and their energy storage applications are currently gaining great importance. This review aims to provide general information on recent developments in self-healing materials and their battery applications given the critical importance of self-healing systems for lithium-ion batteries (LIBs). In the first part of the review, an introduction about self-healing mechanisms and design strategies for self-healing materials is given. Then, selected important healing materials in the literature for the anodes of LIBs are mentioned in the second part. The results and future perspectives are stated in the conclusion section.

Miscellaneous PEDOT:PTS (polythiophenesulfonyl chloride) based conductive binder for silicon anodes in lithium ion batteries

“…A major peak for 01s was observed at 532 eV, in appropriate with carbonates and organic species 32 . There are many researches in the literature which explains how the formation of SEI, LiF or the other carbonaceous species in detail 33–38 …”

“…32 There are many researches in the literature which explains how the formation of SEI, LiF or the other carbonaceous species in detail. [33][34][35][36][37][38]…”

Do eco-friendly binders affect the electrochemical performance of MOF@CNT anodes in lithium-ion batteries?

“…Hence, this electrode cannot stand the volume variations of electroactive materials during the lithiation/delithiation process. 86,87…”

Achievements, challenges, and perspectives in the design of polymer binders for advanced lithium-ion batteries

“…395,396 In particular, the intermolecular interactions (van der Waals forces, hydrogen bonds and ion-dipole interactions) are reversible, which is a necessary condition for self-healing. 106,110,400,401 Among them, van der Waals forces are too weak to resist deformation even under small stress. Therefore, hydrogen bonds and ion-dipole interactions are considered the preferential choice for self-healing capabilities.…”