Built-In “Vesicle-Like Structures” Electrolytes to Form Ion Channels for Dendrite-Free and Durable Zinc-Ion Hybrid Supercapacitors DOI
Xinyuan Bai, Yapeng He, Yating Wang

et al.

ACS Applied Materials & Interfaces, Journal Year: 2025, Volume and Issue: unknown

Published: May 17, 2025

Aqueous zinc-ion hybrid supercapacitors (ZHSCs) have stimulated wide attention due to their features of low cost and nontoxic nature. Nevertheless, the growth zinc dendrites, parasitic reactions, a narrow electrochemical stable window (ESW) severely limited development ZHSCs. Here, distinct vesicle-like structure using polyethylene glycol monomethyl ether (MPEG) ethylene dimethyl (DME) is creatively represented, which named bicelle electrolyte. In this unique structure, O -OH C-O-C in MPEG extends interior, encapsulating aqueous Zn(ClO4)2. The hydrophobic groups DME accumulate interactions, forming domain. Due presence domain, internal active water molecules are prevented from directly contacting Zn foil. external hydrophilic form hydrogen bonds with free water, also greatly suppress activity thus inhibiting harmful side reactions (hydrogen evolution reactions) related water. was widened 3.03 V. Furthermore, formed by head-to-head creates Zn2+ channel that promotes rapid uniform deposition Zn2+, thereby dendrite promoting cycling stability cell. experiments show high ion conductivity 51.87 mS cm-1 transference number (tZn2+) 0.70 can be achieved system. assembled asymmetric supercapacitor specific capacity 95.47 mAh g-1 at 5 A g-1, it still maintains retention rate 84.40% after 8000 cycles. symmetric cell delivers long lifespan over 1300 h 1 mA cm-2.

Language: Английский

High pseudocapacitive and self-supporting three-dimensional porous MXene integrated carbon nanotubes composite film featuring oxygen-rich for flexible supercapacitors DOI
Ji Zhou,

Xiaoran Gong,

Jiahong Kang

et al.

Journal of Power Sources, Journal Year: 2025, Volume and Issue: 638, P. 236637 - 236637

Published: March 1, 2025

Language: Английский

Citations

0
Built-In “Vesicle-Like Structures” Electrolytes to Form Ion Channels for Dendrite-Free and Durable Zinc-Ion Hybrid Supercapacitors DOI
Xinyuan Bai, Yapeng He, Yating Wang

et al.

ACS Applied Materials & Interfaces, Journal Year: 2025, Volume and Issue: unknown

Published: May 17, 2025

Aqueous zinc-ion hybrid supercapacitors (ZHSCs) have stimulated wide attention due to their features of low cost and nontoxic nature. Nevertheless, the growth zinc dendrites, parasitic reactions, a narrow electrochemical stable window (ESW) severely limited development ZHSCs. Here, distinct vesicle-like structure using polyethylene glycol monomethyl ether (MPEG) ethylene dimethyl (DME) is creatively represented, which named bicelle electrolyte. In this unique structure, O -OH C-O-C in MPEG extends interior, encapsulating aqueous Zn(ClO4)2. The hydrophobic groups DME accumulate interactions, forming domain. Due presence domain, internal active water molecules are prevented from directly contacting Zn foil. external hydrophilic form hydrogen bonds with free water, also greatly suppress activity thus inhibiting harmful side reactions (hydrogen evolution reactions) related water. was widened 3.03 V. Furthermore, formed by head-to-head creates Zn2+ channel that promotes rapid uniform deposition Zn2+, thereby dendrite promoting cycling stability cell. experiments show high ion conductivity 51.87 mS cm-1 transference number (tZn2+) 0.70 can be achieved system. assembled asymmetric supercapacitor specific capacity 95.47 mAh g-1 at 5 A g-1, it still maintains retention rate 84.40% after 8000 cycles. symmetric cell delivers long lifespan over 1300 h 1 mA cm-2.

Language: Английский

Citations

0