Multifunctional binder 3M_x for improving the cycle stability of rechargeable Li–S batteries

Abstract

Excellent adhesion properties and strong chemical affinity to polysulfide were achieved with the prepared 3Mx binder.

Dual Cross-Linked Multifunctional Binder for High-Performance Lithium–Sulfur Batteries

“…The outstanding cycling performance of the CPSbased electrode is associated with the following reasons: (1) The dual cross-linked structure and soft−hard moieties of the CPS binder maintain the integrity of the electrode. (2) The uniform dispersion of S-KB and conductive agents is favorable for the electrical connection, leading to increased reutilization of sulfur materials. (3) The fast Li-ion transfer and rapid reaction kinetics also result in the high utilization of sulfur.…”

“…2−4 Binders, used to bond the active materials, current collector, and conductive agent together, play a crucial role in improving the electrochemical performance of lithium−sulfur batteries. A desirable binder for lithium−sulfur batteries should possess the following properties: (1) showing proper mechanical properties to mitigate the huge volume variation of sulfur; (2) uniformly dispersing the sulfur particles and conductive agents;…”

“…Lithium–sulfur batteries are considered to be one of the most promising systems to completely meet the requirements of electric vehicles, owing to their low cost, high theoretical specific capacity (1675 mAh g –1 ), natural abundance, and environmental friendliness of sulfur . Nevertheless, the practical application of lithium–sulfur batteries is limited by several issues such as huge volume variation (∼80%), severe shuttle effect of dissolved lithium polysufides (LiPSs), and intrinsic insulation of sulfur and lithium sulfide (Li 2 S), resulting in delamination of the electrode, low utilization of sulfur, and inferior cycling stability. − …”

A V-doped W3Nb14O44 anode in a Wadsley–Roth structure for ultra-fast lithium-ion half/full batteries

“…In addition, these well-designed nanostructures are fragile, so either the mechanical or the electric interfaces for rapid kinetics are not sustainable under repetitive strains induced by the prolonged electrode reactions. 5–7 In general, the industrial applications of nano-sized electrode materials are still in the preliminary stage.…”

Antiferroelectric AgNbO3@KH550 Doped PVDF/PMMA Composites with High Energy Storage Performance

“…[ 1–5 ] Compared with energy storage devices such as batteries and supercapacitors, dielectric capacitors have faster charging and discharging efficiency, higher power density, and can meet the requirements of miniaturization, lightweight design, and high voltage levels. [ 6,7 ] Therefore, the research and development of dielectric capacitors with high energy storage density have become a focal point in the field of electrical engineering. [ 8,9 ] Polymer materials have the advantages of good flexibility, high breakdown strength, low dielectric loss, low quality, easy processing, and suitable for large‐scale manufacturing.…”