Energy storage materials, Год журнала: 2025, Номер unknown, С. 104239 - 104239
Опубликована: Апрель 1, 2025
Язык: Английский
Advanced Materials, Год журнала: 2024, Номер 36(29)
Опубликована: Май 2, 2024
Lithium-ion batteries (LIBs), in which lithium ions function as charge carriers, are considered the most competitive energy storage devices due to their high and power density. However, battery materials, especially with capacity undergo side reactions changes that result decay safety issues. A deep understanding of cause battery's internal components mechanisms those is needed build safer better batteries. This review focuses on processes failures, voltage temperature underlying factors. Voltage-induced failures from anode interfacial reactions, current collector corrosion, cathode overcharge, over-discharge, while temperature-induced failure include SEI decomposition, separator damage, between electrodes electrolytes. The also presents protective strategies for controlling these reactions. As a result, reader offered comprehensive overview features various LIB components.
Язык: Английский
Процитировано
44
Advanced Energy Materials, Год журнала: 2024, Номер 14(17)
Опубликована: Фев. 21, 2024
Abstract Localized highly concentrated electrolytes have revitalized the advancement of secondary batteries. However, fluorinated diluents typically drawbacks high toxicity, serious environmental pollution, challenging synthesis, and cost. This work develops a low‐cost, eco‐friendly localized electrolyte by utilizing benzene as diluent, simultaneously achieving reversible lithium‐metal anodes long‐term stable cycling single crystal LiNi 0.8 Co 0.1 Mn O 2 (SC811) cathode. The unique conjugated structure absence electron‐withdrawing groups provide decent redox stability inertness, which enables it to modulate solvation structure. PhH‐LHCE supports SC811‐Li cells with cathode loading 9 mg cm −2 87.3% capacity retention after 450 cycles. Cells consisting ultra‐high Ni83 (≈31 ) ultra‐thin Li (50 µm) anode achieve 70 cycles lean condition. can be generalized promising electrochemical energy storage systems such sodium potassium metal batteries solve cost pollution problems in large‐scale production process.
Язык: Английский
Процитировано
25
Energy & Environmental Science, Год журнала: 2024, Номер 17(12), С. 4036 - 4043
Опубликована: Янв. 1, 2024
Di-coordination-strength anions can simultaneously solvate lithium and tether aluminium in low-temperature metal batteries: the weakly coordinated anion exerts high ionic transport kinetics while strongly stabilizes surface.
Язык: Английский
Процитировано
19
ACS Nano, Год журнала: 2024, Номер 18(19), С. 12512 - 12523
Опубликована: Май 3, 2024
Ether-based electrolytes are among the most important for potassium-ion batteries (PIBs) due to their low polarization voltage and notable compatibility with potassium metal. However, development is hindered by strong binding between K+ ether solvents, leading [K+–solvent] cointercalation on graphite anodes. Herein, we propose a partially weakly solvating electrolyte (PWSE) wherein local solvation environment of conventional 1,2-dimethoxyethane (DME)-based efficiently reconfigured diethoxy methane (DEM) cosolvent. For PWSE in particular, DEM participates shell weakens chelation DME, facilitating desolvation suppressing behavior. Notably, structure DME-based transformed into more cation–anion–cluster-dominated structure, consequently promoting thin stable solid–electrolyte interphase (SEI) generation. Benefiting from optimized SEI generation, enables electrode reversible (de)intercalation (for over 1000 cycles) K plating/stripping (the K||Cu cell an average Coulombic efficiency 98.72% 400 dendrite-free properties K||K operates 1800 h). We demonstrate that rational design provides approach tailoring toward PIBs.
Язык: Английский
Процитировано
19
Advanced Functional Materials, Год журнала: 2024, Номер 34(26)
Опубликована: Фев. 25, 2024
Abstract High‐voltage sodium‐ion batteries (SIBs) are one of the most promising energy storage technologies for abundant resources and cost‐efficiency. However, their low density compared with lithium‐ion (LIBs) hinders practical applications. The high reactivity high‐voltage cathodes, primary factor, leads to deterioration electrode/electrolyte interphase. Herein, a novel anion/cation solvation strategy is innovatively proposed ternary low‐concentration electrolyte that tackles critical bottleneck unstable Especially, intermolecular interaction within as‐designed remodeled by weakly polar fluorinated co‐solvent (ethoxy(pentafluoro)cyclotriphosphazene, PFPN) traditional carbonate‐based electrolytes. PFPN can not only stabilize propylene carbonate (PC), reduce Na + ‐PC, ClO 4 − , accelerating desolvation, but also weaken anions form stable organic/inorganic composite cathode interphase (CEI). In this work, ionic conductivity increases 6.12 mS cm −1 oxidation stability successfully extended 4.84 V. And 3 V 2 (PO ) F (NVPF)||Na half‐cells present excellent cycling performance average coulombic efficiency 99.5% after 2000 cycles at 4.5 NVPF||hard carbon (HC) full cells relatively (≈450 Wh kg competitive commercial LIBs, which expected be coupled higher voltage cathodes achieve in future.
Язык: Английский
Процитировано
16
Energy storage materials, Год журнала: 2025, Номер 75, С. 104105 - 104105
Опубликована: Фев. 1, 2025
Язык: Английский
Процитировано
8
Energy & Environmental Science, Год журнала: 2024, Номер 17(13), С. 4519 - 4530
Опубликована: Янв. 1, 2024
A cationic polymer was developed as protective layer for Li anodes. The multiple sites in molecule provided enhanced electrostatic shielding, whereas NO 3 − anions generated robust and high + flux inorganic SEI.
Язык: Английский
Процитировано
12
Energy & Environmental Science, Год журнала: 2024, Номер 17(16), С. 5993 - 6002
Опубликована: Янв. 1, 2024
A high-anion-concentration interface, immobilizing a high concentration of anions at electrolyte/electrode can alleviate formation space charge layer with uneven electric field distribution and inhibit the growth Li dendrites.
Язык: Английский
Процитировано
11
Nano Research, Год журнала: 2024, Номер 17(10), С. 8706 - 8728
Опубликована: Июль 24, 2024
Язык: Английский
Процитировано
8
Small, Год журнала: 2024, Номер 20(31)
Опубликована: Март 7, 2024
Abstract Local high concentration electrolytes (LHCEs) have been proved to be one of the most promising systems stabilize both voltage cathodes and Li metal anode for next‐generation batteries. However, solvation structures interactions among different species in LHCEs are still convoluted, which bottlenecks further breakthrough on electrolyte development. Here, it is demonstrated that hydrogen bonding interaction between diluent solvent crucial construction corresponding interphase chemistries. The 2,2,2‐trifluoroethyl trifluoromethane sulfonate (TFSF) selected as with dimethoxy‐ethane (DME) prepare a non‐flammable LHCE LMBs. This first find TFSF DME tailors by weakening coordination molecules + cations allows more participation anions shell, leading formation aggregates (AGGs) clusters conducive generating inorganic solid/cathodic interphases (SEI/CEIs). proposed based enables Li||NCM811 (LiNi 0.8 Mn 0.1 O 2 ) batteries realize >80% capacity retention average Coulombic efficiency 99.8% 230 cycles under aggressive conditions (NCM811 cathode: 3.4 mAh cm −2 , cut‐off voltage: 4.4 V, 20 µm foil).
Язык: Английский
Процитировано
7