Chemical Communications, Journal Year: 2024, Volume and Issue: unknown
Published: Jan. 1, 2024
Strong C–H⋯anion interactions contribute to the unexpected anodic current during BF 4 − deintercalation from graphite. Precise control of this interaction will offer new design strategies for electrolytes in rechargeable ion batteries.
Language: Английский
Nano-Micro Letters, Journal Year: 2024, Volume and Issue: 16(1)
Published: July 24, 2024
Distinct from "rocking-chair" lithium-ion batteries (LIBs), the unique anionic intercalation chemistry on cathode side of dual-ion (DIBs) endows them with intrinsic advantages low cost, high voltage, and eco-friendly, which is attracting widespread attention, expected to achieve next generation large-scale energy storage applications. Although electrochemical reactions anode DIBs are similar that LIBs, in fact, match rapid insertion kinetics anions consider compatibility electrolyte system also serves as an active material, materials play a very important role, there urgent demand for rational structural design performance optimization. A review summarization previous studies will facilitate exploration optimization future. Here, we summarize development process working mechanism exhaustively categorize latest research their applications different battery systems. Moreover, design, reaction briefly discussed. Finally, fundamental challenges, potential strategies perspectives put forward. It hoped this could shed some light researchers explore more superior advanced systems further promote DIBs.
Language: Английский
Citations
19
Energy storage materials, Journal Year: 2024, Volume and Issue: 72, P. 103698 - 103698
Published: Aug. 11, 2024
Language: Английский
Citations
9
Advanced Functional Materials, Journal Year: 2024, Volume and Issue: 34(40)
Published: Aug. 9, 2024
Abstract Proton batteries have emerged as a promising solution for grid‐scale energy storage benefiting their high safety and abundant raw materials. The battery chemistry based on proton‐ions is intrinsically advantageous in integrating fast diffusion kinetics capacities, thus offering great potential to break through the limit of capacitors power traditional batteries. Significant efforts been dedicated advancing proton batteries, leading successive milestones recent years. Herein, progress summarized insights into challenges electrodes, electrolytes future opportunities enhancing full‐cell applications are provided. fundamentals electrochemical representative faradaic electrodes discussed, delving current limitations mechanism studies performances. Subsequently, classification, challenges, strategies improving protonic addressed. Finally, state‐of‐the‐art full‐cells explored, views rational design devices achieving high‐performance aqueous offered.
Language: Английский
Citations
5
Battery energy, Journal Year: 2025, Volume and Issue: unknown
Published: Jan. 30, 2025
ABSTRACT Due to the strong affinity between solvent and Li + , desolvation process of at interface as a rate‐controlling step slows down, which greatly reduces low‐temperature electrochemical performance lithium‐ion batteries (LIBs) thus limits its wide application in energy storage. Herein, improve tolerance, localized high‐concentration electrolyte based on weak solvation (Wb‐LHCE) has been designed by adding diluent hexafluorobenzene (FB) solvating tetrahydrofuran (THF). Combining theoretical calculations with characterization tests, it is found that addition FB, dipole–dipole interaction causes FB compete for THF. This competition move away from weakening binding THF, whereas anions are transported into shell forming an anion‐rich structure. In accelerating process, this unique structure optimizes composition CEI film, making thin, dense, homogeneous, rich inorganic components, improving interfacial stability battery. As result, assembled LiFePO 4 /Li half‐cell shows excellent performances low temperature. That is, can maintain high discharge specific capacity 124.2 mAh g −1 after 100 cycles rate 0.2C −20°C. provides attractive avenue design advanced electrolytes improvement battery tolerance harsh conditions.
Language: Английский
Citations
0
Angewandte Chemie International Edition, Journal Year: 2025, Volume and Issue: unknown
Published: March 11, 2025
Electrochemical ion-solvent cointercalation reactions are an avenue to reach improved kinetics compared the corresponding intercalation of desolvated ions. Here, we demonstrate impact different structural pillar molecules on electrochemical Li+ mechanism in expanded hydrogen titanate (HTO) electrode materials. We show that interlayer-expansion HTO with organic pillars can enable reactions. Their reversibility is drastically when non-cross-linking employed expand and separate host material's individual layers, underlining electrochemo-mechanics nanoconfined interlayer space. This pillared structure results increased storage capacity pristine HTO. derive models materials based combined experiments theoretical calculations, employ operando unambiguously nanoconfinement-induced The work demonstrates potential modify highly reversible kinetics.
Language: Английский
Citations
0
Angewandte Chemie, Journal Year: 2025, Volume and Issue: unknown
Published: March 11, 2025
Abstract Electrochemical ion‐solvent cointercalation reactions are an avenue to reach improved kinetics compared the corresponding intercalation of desolvated ions. Here, we demonstrate impact different structural pillar molecules on electrochemical Li + mechanism in expanded hydrogen titanate (HTO) electrode materials. We show that interlayer‐expansion HTO with organic pillars can enable reactions. Their reversibility is drastically when non‐cross‐linking employed expand and separate host material's individual layers, underlining electrochemo‐mechanics nanoconfined interlayer space. This pillared structure results increased storage capacity pristine HTO. derive models materials based combined experiments theoretical calculations, employ operando unambiguously nanoconfinement‐induced The work demonstrates potential modify highly reversible kinetics.
Language: Английский
Citations
0
Journal of Energy Storage, Journal Year: 2025, Volume and Issue: 117, P. 116171 - 116171
Published: March 15, 2025
Language: Английский
Citations
0
Journal of The Electrochemical Society, Journal Year: 2024, Volume and Issue: 171(11), P. 110515 - 110515
Published: Oct. 31, 2024
Improving the kinetics of electrochemical ion intercalation processes is interest for realizing high-power energy storage. This includes classical battery-like and pseudocapacitive with a capacitor-like signature. Electrochemical methods are needed to probe such complex multistep in detail. Here, we present use distribution relaxation times (DRT) analysis impedance data identify kinetic limits reactions. We study lithium reaction TiS 2 from organic aqueous electrolytes as model system. The material can exhibit both regimes depending on potential range, variable diffusion lengths by adjusting its particle size, tunable degree solvent cointercalation choosing electrolyte solvent. Using DRT, distinguish between limitations imposed solid-state diffusion, interfacial adsorption transport, desolvation processes. Thus, DRT complement existing methods, voltammetry or 3D-Bode analysis, better understand
Language: Английский
Citations
3
ACS Nano, Journal Year: 2024, Volume and Issue: 18(47), P. 32723 - 32731
Published: Nov. 13, 2024
The serious dissolution of organic electrode materials (e.g., perylene-3,4,9,10-tetracarboxylic dianhydride, PTCDA) in electrolytes is a major challenge, deteriorating their electrochemical performances and hindering the interpretation fundamental redox reaction mechanisms including intrinsic kinetics solvent cointercalation. To address these issues, we propose rationally designed sulfonamide-based electrolyte to enable quasi-solid-state conversion (QSSC) PTCDA cathode by effectively suppressing its electrolyte. Benefiting from QSSC, Li||PTCDA cells can retain ∼95.8% original capacity after 300 cycles with both high stable energy efficiencies >95%, even comparable layered transition-metal oxide cathodes, greatly outperforming an ether-based solubility. indicate that QSSC has fast kinetics. Furthermore, cointercalation mechanism was investigated density functional theory/molecular dynamic calculations. This work develops strategy for designing highly efficient Li-organic batteries.
Language: Английский
Citations
3
Chemical Reviews, Journal Year: 2025, Volume and Issue: unknown
Published: March 15, 2025
Solvent co-intercalation is a process in which ions and solvents jointly intercalate into layered electrode material during battery charging/discharging. It typically leads to rapid degradation, but new findings show that it can be highly reversible, lasting several thousand cycles. has two important characteristics: (1) the charge transfer resistance minimized as stripping of solvation shell eliminated (2) fact become part reaction provides another means designing materials. The concept solvent chemically very diverse, single host different types numbers ions. likely many undiscovered combinations materials, solvents, capable reactions exist, offering largely unexplored chemical space for Co-intercalation expand crystal lattice (>1 nm) extent free are present structure, forming layered, "porous" material. This indicates much broader impact relates other research fields such supercapacitors, nanostructures, nanocatalysis. Review covers current understanding reactions, characterization methods, advantages, limitations, future directions.
Language: Английский
Citations
0