A Supramolecular Deep Eutectic Electrolyte Enhancing Interfacial Stability and Solution Phase Discharge in Li‐O2 Batteries DOI Open Access
Wen Sun, Fengling Zhang,

Jingning Lai

et al.

Angewandte Chemie, Journal Year: 2024, Volume and Issue: 136(48)

Published: Sept. 2, 2024

Abstract Li−O 2 batteries (LOBs) have gained widespread recognition for their exceptional energy densities. However, a major challenge faced by LOBs is the lack of appropriate electrolytes that can effectively balance reactant transport, interfacial compatibility, and non‐volatility. To address this issue, novel supramolecular deep eutectic electrolyte (DEE) has been developed, based on synergistic interaction between Li‐bonds H‐bonds through combination lithium salt (LiTFSI), acetamide (Ace) boric acid (BA). The incorporation BA serves as an interface modification additive, acting both acceptor donor/acceptor, thereby enhancing redox stability electrolyte, facilitating solution phase discharge process improving compatibility with Li anode. Our proposed DEE demonstrates high oxidation voltage 4.5 V, ultrahigh capacity 15225 mAh g −1 stable cycling performance 196 cycles in LOBs. Additionally, intrinsic non‐flammability successful operation pouch cell indicate promising practical applications electrolyte. This research broadens design possibilities provides theoretical insights future studies.

Language: Английский

Engineering the Solid Electrolyte Interphase for Enhancing High-Rate Cycling and Temperature Adaptability of Lithium-Ion Batteries DOI Creative Commons
Zhongming Wang, Zhiyuan He, Zhongsheng Wang

et al.

Chemical Science, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

The new lithium salt additive prevents the decomposition of VN and promotes formation a SEI film rich in RSO 3 LiF on graphite electrode surface.

Language: Английский

Citations

1
Constructing Anion Solvation Microenvironment Toward Durable High‐Voltage Sodium‐Based Batteries DOI Open Access
Rui Zhou, Yan‐Song Xu,

Chong Han

et al.

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

Published: Jan. 26, 2025

Abstract Sodium‐based rechargeable batteries are some of the most promising candidates for electric energy storage with abundant sodium reserves, particularly, sodium‐based dual‐ion (SDIBs) perform advantages in high work voltage (≈5.0 V), high‐power density, and potentially low cost. However, irreversible electrolyte decomposition co‐intercalation solvent molecules at electrode interface under a charge state blocking their development. Herein, high‐salt concentration microenvironment is created proposed by tailoring solvation structures carriers including both cations anions, which maintains highly oxidation‐resistant contact ion pairs aggregates provides conductivity. The tailored structure makes great contribution to protecting graphite cathode from oxidation, co‐intercalation, structural degradation constructing robust cathode‐electrolyte interphase standout electrochemical stability. Based on this, SDIBs achieved an excellent high‐voltage cycling stability 81% capacity retention after 10 000 cycles battery showed improved rate performance 97.4 mAh g −1 maintained 100 C. It identified that regulating anion responsible stable chemistry enhanced reaction kinetics, deep insight into compatibility design between specialized electrodes.

Language: Английский

Citations

1
A nitrile solvent structure induced stable solid electrolyte interphase for wide-temperature lithium-ion batteries DOI Creative Commons
Zhong-Ming Wang, Zhiyuan He, Zhong‐Sheng Wang

et al.

Chemical Science, Journal Year: 2024, Volume and Issue: 15(34), P. 13768 - 13778

Published: Jan. 1, 2024

Lithium-ion batteries (LIBs) are extensively employed in various fields. Nonetheless, LIBs utilizing ethylene carbonate (EC)-based electrolytes incur capacity degradation a wide-temperature range, which is attributable to the slow Li+ transfer kinetics at low temperatures and solvent decomposition during high-rate cycling high temperatures. Here, we designed novel electrolyte by substituting nitrile solvents for EC, characterized de-solvation energy ionic conductivity. The correlation between carbon chain length of with reduction stability Li+-solvated coordination was investigated. results revealed that valeronitrile (VN) displayed an enhanced lowest unoccupied molecular orbital level energy, helped construct robust SEI interfacial layers improved ion LIBs. VN-based graphite‖NCM523 pouch cells achieved discharge 89.84% 20C rate room temperature. Meanwhile, cell exhibited 3C even temperature 55 °C. Notably, conductivity 1.585 mS cm-1 -50 retained 75.52% 65.12% their -40 °C °C, respectively. Wide-temperature-range have potential be applied extreme environments.

Language: Английский

Citations

8
Electrolyte Engineering of Hard Carbon for Sodium‐Ion Batteries: From Mechanism Analysis to Design Strategies DOI

Keying Cui,

Ruilin Hou,

Haoshen Zhou

et al.

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 4, 2024

Abstract The hard carbon (HC) anodes with desirable electrochemical performances including high initial Coulombic efficiency, superior rate performance and long‐term cycling play an indispensable role in the practical application of sodium ion batteries (SIBs), which are closely related to electrolytes them matched. Fully analyzing mechanism electrolyte engineering for HC is crucial promoting commercialization SIBs, but still lacking. In this review, correlation between physicochemical properties first summarized. And point out properties, conductivity, de‐solvation energy, interface passivation ability Na + storage HC. Then, formation process, composition, as well structure solid interphase (SEI) on surface mainly discussed, structure‐activity relationship SEI analyzed depth. Moreover, based analysis, relevant design strategies have been Finally, challenges future development directions proposed. This review expected provide professional theoretical guidance contribute rational high‐performance anodes, industrialization SIBs.

Language: Английский

Citations

4
Modulating Na plating morphology via interfacial design to achieve energy-dense and fast-charging sodium-ion batteries DOI

Yongteng Dong,

Qinghui Zeng,

Luoyi Ding

et al.

Nano Energy, Journal Year: 2025, Volume and Issue: unknown, P. 110777 - 110777

Published: Feb. 1, 2025

Language: Английский

Citations

0
A Review on Supercapacitors: Development Trends, Challenges, and Future Perspectives DOI

Iqbal Singh,

Rohit Sharma, Amardeep Kaur

et al.

Next research., Journal Year: 2025, Volume and Issue: unknown, P. 100228 - 100228

Published: March 1, 2025

Language: Английский

Citations

0
Research Progress of Electrolytes and Electrodes for Lithium‐ and Sodium‐Ion Batteries at Extreme Temperatures DOI
Xueyang He,

Yu Ling,

Yuhan Wu

et al.

Small, Journal Year: 2025, Volume and Issue: unknown

Published: April 30, 2025

Abstract Lithium‐ion batteries (LIBs) and sodium‐ion (SIBs) have recently received considerable attention in electrical energy storage (EES) systems due to their sustainability, high density, superior conversion efficiency. However, with the expansion of application scenarios, ability operate under extreme conditions, especially low temperatures, is becoming increasingly important. Therefore, extending operating temperature electrochemically stable safe LIBs SIBs has become a critical research topic. In this review, failure mechanism conditions at same time problems faced by electrolyte electrode materials are discussed, various targeted optimization strategies proposed. Additionally, performance such environments compared, drawing an instructive understanding. Finally, summary perspective presented for improving battery electrochemical respectively. Overall, review aims provide design guidelines future conditions.

Language: Английский

Citations

0
Designing Aggregates-Dominated Electrolyte via Tuning Cation-Solvent Interaction for High-Safe and Long-Life Sodium-Ion Batteries DOI

Xin Dou,

Zheng Bai,

Feng Su

et al.

Energy storage materials, Journal Year: 2025, Volume and Issue: unknown, P. 104297 - 104297

Published: April 1, 2025

Language: Английский

Citations

0
Cation–Anion Regulation Engineering in a Flame-Retardant Electrolyte toward Safe Na-Ion Batteries with Appealing Stability DOI
Yi‐Hu Feng,

Chengye Lin,

Hui-Huan Qin

et al.

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

Published: May 1, 2025

Great electrochemical stability and intrinsic safety are of critical significance in realizing large-scale applications Na-ion batteries (NIBs). Unfortunately, the notorious decomposition electrolyte undesirable side reactions on cathode-electrolyte interphase (CEI) pose major obstacles to practical implementation NIBs. Besides, flammability traditional carbonate-based electrolytes raises increasing concerns about batteries. Herein, a flame-retardant all-fluorinated is proposed achieve an anion-aggregated inner solvation shell by modulating cation-anion interactions through low-coordination number cosolvent. The more electrochemically antioxidant fluorinated solvents anion-dominated interfacial chemistry contribute construction both mechanically chemically stable F-rich CEI. Such thin, homogeneous effectively inhibits parasitic reaction, strengthens stability, enables fast Na+ diffusion kinetics interface. When employing this electrolyte, Na0.95Ni0.4Fe0.15Mn0.3Ti0.15O2 (NFMT) cathode delivers remarkable discharge capacity up 169.7 mAh g-1, with cycling at 1C for 500 cycles. Impressively, NFMT//hard carbon pouch cells such also steady operation 100 cycles 0.5C 86.8% remaining. This study offers reference developing high-performance electrolytes.

Language: Английский

Citations

0
Sodium‐Difluoro(oxalato)Borate‐Based Electrolytes for Long‐Term Cycle Life and Enhanced Low‐Temperature Sodium‐Ion Batteries DOI Open Access

Miaomiao Xia,

Hui Chen, Zhixin Zheng

et al.

Advanced Energy Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 5, 2024

Abstract Sodium‐ion batteries (SIBs) are emerging as a promising alternative for next‐generation energy storage solutions, driven by the economic and environmental benefits of abundant sodium resources. A pivotal aspect SIB advancement is development advanced electrolytes, which remains formidable challenge. Herein, facile scalable synthesis method low‐cost sodium‐difluoro(oxalato)borate (NaDFOB) reported explored its application standalone electrolyte salt SIBs. The NaDFOB‐based ether demonstrates exceptional electrochemical stability, solvent compatibility, unique capacity to form dense, robust solid‐electrolyte interphase layer on electrode surfaces. As result, Na 4 Fe 3 (PO ) 2 P O 7 (NFPP) cathode with exhibits ultrahigh cycling stability remarkable retention 98.7% after 1000 cycles. Furthermore, an Ah‐level hard carbon (HC)//NFPP pouch cell using shows impressive cycle life 500 cycles, coupled average Coulombic efficiency 99.9%. cells also maintain superior performance across broad temperature range from −40 60 °C, showcasing electrolyte's versatility. This work contributes significant insights into strategic design innovative salts, paving way longer‐lasting SIBs enhanced performance.

Language: Английский

Citations

3