Probe the Role of Oxygen Anionic Redox in High‐Energy‐Density Battery with Advanced Characterization Techniques DOI

Qianwen Dong,

Junxiu Wu, Jun Lü

et al.

Advanced Energy Materials, Journal Year: 2025, Volume and Issue: unknown

Published: April 24, 2025

Abstract The rapid advancement of the new energy industry has resulted in an urgent demand for batteries with superior density. To this end, oxygen anionic redox (OAR) emerges as a paradigm significantly enhancing battery density, which is initially explored diverse systems. Although feasibility OAR various cathode materials affirmed, it essential to consider inevitable consequent issues, such irreversibility process and potential damage electrode structure. achieve comprehensive understanding effectively leverage high‐energy‐density batteries, extensive research focused on performance enhancement failure mechanisms different However, owing limitation characterization techniques, systematic approaches studying lacking. Herein, combing advanced overview provided from local full cathodes, triggers, working processes challenges associated are presented. This perspective will end discussion how develop technology applied along caution practical application OAR.

Language: Английский

A Temperature‐Adapted Ultraweakly Solvating Electrolyte for Cold‐Resistant Sodium‐Ion Batteries DOI Open Access

Yuewei Cui,

Youxuan Ni,

Yuankun Wang

et al.

Advanced Energy Materials, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 26, 2025

Abstract Sodium‐ion batteries are applied to cold‐resistant energy storage hindered by phase transitions and sluggish Na + migration of traditional carbonate‐based electrolytes at low temperatures. The desolvation is a crucial step in impeding the transport , which primarily attributes robust solvent coordination . Herein, low‐temperature adaptive electrolyte with an ultraweakly coordinated 1,3‐dioxolane (DOL) designed for constructing anion‐rich solvation structure diglyme (G2)‐based electrolyte. electronegativity oxygen atoms G2 attenuated dipole‐dipole interaction between DOL G2. As temperature drops, weakened ‒O (G2) leads increased anionic less coordination, facilitating This anionic‐enhanced contributes formation stable solid interface hard carbon (HC) anode, accelerates diminishing voltage polarization Consequently, HC anode can retain high capacity 203.9 mAh g ‒1 (1 C) ‒50 °C, pouch cell composed HC||Na 3 V 2 (PO 4 ) ‒30 °C achieves retention 92.43% after 100 cycles 0.1 C. strategy guides design ultra‐low broadens range applications sodium‐ion batteries.

Language: Английский

Citations

0
Heavy Atom-Induced Spin–Orbit Coupling to Quench Singlet Oxygen in a Li–O2 Battery DOI
Zhuoliang Jiang, Bo Wen, Yaohui Huang

et al.

Journal of the American Chemical Society, Journal Year: 2025, Volume and Issue: unknown

Published: March 19, 2025

Li-O2 batteries have aroused considerable interest due to high theoretical energy density; however, the singlet oxygen (1O2) generated in both discharge and charge processes induces severe parasitic reactions leads their low round-trip efficiency poor rechargeability. Herein, a universal heavy atom-induced quenching mechanism is proposed suppress 1O2 related side reactions. Br tris(4-bromophenyl)amine (TBPA) strong spin-orbit coupling (SOC), enhancing interaction between spin angular momentum orbital of electron. It enables TBPA capture electrophilic form complex then effectively drives spin-forbidden spin-flip process triplet complex. This accelerates conversion ground-state 3O2 through intersystem crossing mechanism, it efficiently eliminates its attack on organic solvents carbon cathodes. These endow battery with reduced overvoltages prolonged lifespan for over 350 cycles when coupled RuO2 catalyst. work highlights SOC quench evolution reaction-related devices.

Language: Английский

Citations

0
Dual-salt electrolyte strategy enables stable interface reaction and high-performance lithium-ion batteries at low temperature DOI
Peng Wang, Guanyu Zhao,

Yicai Pan

et al.

Chinese Chemical Letters, Journal Year: 2025, Volume and Issue: unknown, P. 111190 - 111190

Published: April 1, 2025

Language: Английский

Citations

0
Probe the Role of Oxygen Anionic Redox in High‐Energy‐Density Battery with Advanced Characterization Techniques DOI

Qianwen Dong,

Junxiu Wu, Jun Lü

et al.

Advanced Energy Materials, Journal Year: 2025, Volume and Issue: unknown

Published: April 24, 2025

Abstract The rapid advancement of the new energy industry has resulted in an urgent demand for batteries with superior density. To this end, oxygen anionic redox (OAR) emerges as a paradigm significantly enhancing battery density, which is initially explored diverse systems. Although feasibility OAR various cathode materials affirmed, it essential to consider inevitable consequent issues, such irreversibility process and potential damage electrode structure. achieve comprehensive understanding effectively leverage high‐energy‐density batteries, extensive research focused on performance enhancement failure mechanisms different However, owing limitation characterization techniques, systematic approaches studying lacking. Herein, combing advanced overview provided from local full cathodes, triggers, working processes challenges associated are presented. This perspective will end discussion how develop technology applied along caution practical application OAR.

Language: Английский

Citations

0