Small
·
2026
·
IF 11.8
Yu Cheng,Qi Tang,Zhenfu Yu,Ran Hu,Rui Tong,Guoqiang Zhong,Marino Lavorgna,Xili Lu,Hesheng Xia
Lithium-ion batteries (LiBs) face critical challenges with graphite anodes, including limited theoretical capacity and sluggish Li + diffusion kinetics leading to safety risks. Short carbon nanotubes (CNTs) offer compelling advantages due to shortened Li + diffusion pathways and abundant defect-mediated active sites, yet scalable fabrication remains hindered by harsh preparation processes or low yield/purity. Herein, we report an innovative spatially confined CNTs growth strategy that utilizes cabbage-inspired graphene aerogel microspheres as efficient micro-reactors for high-yield production of defect-rich shortened CNTs. The unique aerogel microspheres with hierarchical pore architecture simultaneously maximizes the dispersion/exposure of nano-catalysts of metal, facilitates rapid propylene (C 3 H 6 ) gas diffusion, and physically confines the CNTs longitudinal growth, enabling an unprecedented growth yield of 385.58 gg − 1 cat in 1 h. The resulting short CNTs demonstrate superior LiBs anode performances compared with commercial graphite, exhibiting a high specific capacity of 468.73 mAhg − 1 and maintaining a great Coulombic efficiency of 98% at 0.2 C even after 100 cycles. This work develops a generalizable confined-growth paradigm for synthesizing advanced nanocarbons towards energy storage and sustainable valorization of hydrocarbons.
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高影响因子
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
·
2026
·
IF 17.6
Shiqi Wang,Tianwei Cui,Min Zhang,Yijun Song,Yue Zhou,Biao Li
In oxygen-redox cathodes, voltage hysteresis largely arises as oxygen redox generally proceeds with electrochemical reactions followed by chemical reactions that normally drive asymmetrical charge and discharge pathways. Although different superstructures, such as ribbon and mesh units, were intentionally introduced to mitigate voltage hysteresis, those structures remain as model compounds that can hardly be implemented in real-world applications. Here, inspired by the classical Li-rich layered Li[Li 0.2 Ni 0.2 Mn 0.6 ]O 2 , we design a new O3-type sodium layered oxide, NaLi 0.2 Ni 0.2 Mn 0.6 O 2 , that delivers 205.2 mA h g − 1 with reversible oxygen redox but shows mitigated voltage hysteresis and suppressed voltage decay. Atomic-resolution scanning transmission electron microscopy reveals that deep desodiation reconstruts an addtional inverse-honeycomb superstructure in the alkali layer, which is retained after discharge and extended cycling. Li analogues prepared via (electro)chemical ion-exchange reactions from pristine and charged-state Na precursors further reveal the critical role of this inverse-honeycomb ordering in suppressing voltage hysteresis. Thermal relaxation experiments combined with spectroscopic studies show that inverse-honeycomb ordering suppresses Ni-centered ligand-to-metal charge transfer associated with chemical relaxation, allowing the reduction process to proceed from a nonequilibrium state, thereby mitigating voltage hysteresis. Our study provides practical significance in this newly designed Na compound NaLi 0.2 Ni 0.2 Mn 0.6 O 2 by taking advantage of in situ formation of inverse-honeycomb ordering. Graphical An O3-type NaLi 0.2 Ni 0.2 Mn 0.6 O 2 cathode undergoes electrochemically induced reconstruction of inverse-honeycomb ordering in the alkali layer during deep desodiation. The reconstructed superstructure suppresses Ni-centered ligand-to-metal charge transfer, preserves more high-voltage cationic-redox contribution, and reduces delayed low-voltage oxygen reduction, thereby mitigating voltage hysteresis and voltage decay while maintaining high reversible capacity.
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高影响因子
WASTE MANAGEMENT
·
2026
·
IF 7.3
Jiayi Wang,Shuqi Ren,Ruili Liang,Weijian Sun,Jianwen Xu,Yachao Jin,Mingdao Zhang,Li Song
An innovative suspension electrolysis method is proposed for LiCoO 2 recycling. • The electrolysis process can leach aqueous Li ions while generate solid Co oxide. • Direct regeneration of LCO is achieved via a closed-loop solid-state sintering. • Regenerated LCO restored comparable electrochemical properties to commercial LCO. • This strategy is scalable for mass production of industrial LiCoO 2 black mass. An innovative and green anodic “suspension electrolysis” strategy is designed for lithium extraction from industrial spent LiCoO 2 “black powders”, without additional acid, base or oxidizing/reducing agents required. As thoroughly illustrated by the electrolytic mechanism, Li ions driven by the electric energy are leached into the electrolyte while lithium-deficient Li x CoO 2 can be acquired as the anodic residual powders. The electrolysis process achieves an outstanding Li leaching efficiency of 92.1% and the Li ions can be recycled in the form of Li 2 CO 3 through a precipitate reaction by Na 2 CO 3 . The post-produced cobalt oxide and Li 2 CO 3 can be subjected to a solid-phase heat treatment for the regeneration of layered LCO. The regenerated LCO exhibits a discharge specific capacity of 149 mAh/g at 0.5 C, covering around 98.4% of the commercial LCO, and the capacity retention rate reaches up to 91.6% after 200 cycles at 0.5 C. This work provides an eco-friendly and scalable solution for recycling and regenerating spent LCO cathode materials. Download: Download high-res image (151KB) Download: Download full-size image
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PubMed
高影响因子
Polymer Chemistry
·
2026
·
IF 3.9
Linyuan Cui,Xinkai Zou,Chengliang Wang,Huiyu Zhao,Hairui Chen,Qiming Xu,Xuehong Sun,Jingjiang Sun,Qingfu Wang
Conventional flammable liquid electrolytes compromise the safety of lithium metal batteries. We address this via the molecular design and in-situ catalyst-free ring-opening polymerization of a trifluoromethyl-functionalized polyphosphoester, yielding a cross-linked solid polymer electrolyte (TFMPE). The deliberate incorporation of phosphate, ether, and carbonate units with -CF3 side groups imparts intrinsic flame retardancy (from P/F) and governs ion transport. The resulting TFMPE membrane exhibits a balanced suite of properties: high ionic conductivity (3.7×10-4 S cm-1), a wide electrochemical window (4.9 V), and a high Li+ transference number (0.51), which promotes uniform Li+ flux and improves interfacial stability. Moreover, in-situ polymerization forms a seamless electrode/electrolyte interface, suppresses Li dendrite growth, and enables stable Li||Li cycling for 2000 h. Full cells using LiFePO4, LiMnFePO4, and LiCoO2 cathodes also show excellent cycling stability.
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高影响因子
Joule
·
2026
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IF 37.1
Bosheng Zhao,Dongsheng Ren,Deqing Li,Hongkun Pan,Yi Guo,Qianfan Pei,Xinyu Rui,Dechang Wang,Jinli Liu,Feixiong He,Peng Huang,Tiening Tan,Gaolong Zhu,Jianfeng Hua,Xiang Liu,Languang Lu,Minggao Ouyang
All-solid-state batteries (ASSBs) incorporating Ni-rich cathodes and sulfide solid electrolytes are promising for next-generation energy storage. However, their performance is constrained by the inherent electrochemo-mechanical instability and sluggish Li + diffusion kinetics in the randomly oriented Ni-rich cathodes. Herein, we present a microstructure-tailored Ni-rich cathode with fast Li + diffusion layer through regulation of primary particle size and distribution. Comprehensive investigations demonstrate that this optimized Ni-rich cathode enables rapid Li + transport kinetics and effectively accommodates strain accumulation during cycling. Furthermore, an in situ -formed Li 2 CO 3 coating on the cathode surface provides robust passivation against sulfide electrolyte decomposition at the interface. Consequently, sulfide-based ASSBs employing this Ni-rich cathode exhibit a high reversible capacity of 233.8 mAh g −1 and remarkable capacity retention of 79% after 1,000 cycles at 1 C and 71% after 10,000 cycles at 5 C. This work provides an effective and scalable strategy for designing high-performance Ni-rich cathodes, paving the way for high-energy-density and long-lifespan ASSBs.
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高影响因子
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
·
2026
·Vol. 173
·期 8
·080501
·
IF 3.5
Qiqi Li,Enfeng Song,Huan Li,Xingjiang Liu,Qiang Xu
Deep eutectic solvents (DES), as a flame-retardant electrolyte system, have the merit of high ionic conductivity and low preparation cost. However, the poor compatibility of DES-based electrolyte with Li metal anode has seriously restricted its prospects for applications. To solve this problem, a novel DES-based gel electrolyte (DSA) has been prepared by the polymerization of SSH monomer with 4-acryloylmorpholine (ACMO) in the DES solution with/without an additive of fluoroethylene carbonate (FEC) under UV-irradiation, in which SSH monomer is synthesized by the reaction of cystine reagent with 2-isocyanethyl methacrylate ester. The impact of FEC additive on the performance of DSA electrolyte has been investigated in detail. Owing to the presence of urea-based hydrogen bonds and dynamic disulfide bonds in the SSH-ACMO gelling agent, DSA electrolyte with good mechanical properties exhibits an excellent self-repair capability at room temperature. Because of promoting the formation of SEI layer on Li metal anode, the incorporation of FEC additives could significantly improve the electrochemical performance of DSA electrolyte. The experimental results show that the as-prepared DSA-2 electrolyte sample presents high ionic conductivity of 0.85 mS cm−1 at room temperature, broad electrochemical window of 4.5 V, good non-flammability and stable interfacial characteristics.
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高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2026
·
IF 12.5
Lifan Wang,Yiheng Wu,Qinling Shi,Siheng Niu,Min Chen,Xindong Wang,Zhengping Zuo,Chun Zhan,Guicheng Liu
A surficial oxygen-regulation strategy is developed for Li-rich cathodes. • A high-entropy perovskite buffer layer stabilizes anionic redox chemistry. • The perovskite layer suppresses irreversible oxygen release. • It mitigates transition metal migration via stable oxygen vacancies. • Modified cathode shows 87% capacity retention after 150 cycles at 0.5C. Li-rich Mn-based layered oxides, of much interest due to ultrahigh specific capacity (over 300 mAh g −1 ) and low cost, have become a promising cathode of Li-ion batteries to fulfil the long-mileage demand of electric vehicles. However, they are still haunted by a critical challenge of severe oxygen release and irreversible phase transition, which consequently results in rapid voltage fade and even triggering the parasitic thermal runaway. Coating on the surface of cathode particles could partially alleviate these issues, while generally falls short in handling oxygen activity and the chemo-physical mobility of the highly reactive oxygen species. Herein, we report a direct regulation strategy of anionic redox chemistry by constructing a high-entropy perovskite buffer layer (Li 0.37 Sr 0.05 La 0.567 ZrO 2.875 F 0.125 ), which was introduced to the surface of Li-rich cathodes to restrain the release of activated surficial lattice oxygen ions by its stable oxygen vacancies and effectively improves the safety performance. Moreover, our results also demonstrates that the cycle life of modified cathodes is prolonged and the voltage fade is slowed compared to the pristine sample. This work demonstrates that stabilizing the highly active surficial oxygenates provides new design principle for high-safe and long-term cycling lithium-ion batteries.
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高影响因子
DESALINATION
·
2025
·
IF 9.8
Jianning Liu,Jialu Chen,Zirui Wang,Shanxia Luo,Fengfeng Gao,Xiao Du,Wenbiao Ma,Xiaogang Hao
Efficient recovery of residual lithium from lithium precipitation brine has always been a major challenge. A stable and efficient lithium extraction system and a driven mode need to be constructed. This study presents an innovative coupled electrochemical system combining a chlorine-doped polypyrrole (PPy−Cl) electrode with the LiMn 2 O 4 electrode. In this system, the LiMn 2 O 4 film electrode and chlorine-doped polypyrrole were synchronized to remove lithium and chlorine ions, and complete de-intercalation of LiMn 2 O 4 could be achieved at the cell voltage of 1.1 V, which greatly reduces energy consumption. No manganese ions were detected in the solution compared to the 1.43 % manganese dissolution loss after 10 tests on the graphite plate (GP) used as an auxiliary electrode. In addition, self-electrical-energy recuperation can be achieved by utilizing the low potential difference between Li 1-x Mn 2 O 4 and polypyrrole. The performances of the self-driven(SD) mode and the constant-current(CC) mode were compared to achieve externally controlled energy release. The intercalation capacity reached 33.82 mg g −1 at 0.4 mA cm −2 , and the intercalation efficiency was maintained at 88.12 % after 10 tests. During the first discharge, the discharge efficiency of the SD mode was only 54.08 % of the CC mode. Furthermore, the system exhibited high selectivity (51.3) in the lithium-precipitated brine with a high concentration of Na + and Li + (Na + /Li + = 8.47). These results indicate that the proposed strategy has significant potential in Li + resource recovery and can be used in a variety of Li + resource recovery applications.
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高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2026
·
IF 12.5
Yanni Li,Zhigui Zhang,Baobao Wang,Runguo Zheng,Dan Wang,Zhishuang Song,Yanguo Liu,Zhiyuan Wang
High-entropy oxides (HEOs) represent promising anode materials for lithium-ion batteries, yet understanding the intricate relationship between their multi-element composition, crystal structure, and lithium storage mechanism remains a fundamental challenge. This study systematically investigates this relationship in (XCoNiCuZn)O (X = Li, Na, Mg) HEOs by modulating the fifth element. While all compositions form a single rock-salt structure, the cationic radius and valence state of X dictate both the lattice parameters and the electrochemical reaction pathway. It is revealed that (LiCoNiCuZn)O and (MgCoNiCuZn)O undergo a conversion-dominated phase transition mechanism, whereas (NaCoNiCuZn)O follows a solid-solution reaction. This mechanistic divergence, elucidated through in-situ EIS, ex-situ XRD/XPS, and kinetic analysis, directly governs the electrochemical performance. The Li-based HEOs (LiCoNiCuZn)O demonstrates exceptional performance, delivering a high capacity of 549.7 mAh g −1 with 83.4% retention after 300 cycles at 0.5 A g −1 , attributable to its effective charge compensation and superior ion conductivity. This work establishes a clear correlation from cationic modulation to storage performance, offering critical guidance for the rational design of HEOs for energy storage.
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高影响因子
JOURNAL OF MEMBRANE SCIENCE
·
2026
·
IF 8.8
Hui-Qian Huo,Ze-Jian Chen,Bing-Xin Gu,Xiang-Yun Xie,Yan-Li Ji,Cong-Jie Gao
Selective cation exchange membranes (SCEMs) are crucial for renewable energy storage and conversion, seawater softening and wastewater treatment, and ionic resource extraction and purification. However, precisely controlling the pore microstructure of SCEMs to efficiently separate mono-/divalent cations with similar hydrated radii remains a critical challenge in electrodialysis (ED) membrane research. Herein, we report a surface-programmed cross-linking strategy to fabricate an ultrathin, asymmetric modification layer on a commercial CEM (CTG) using diaminoethyl imidazole bromide (DAIB) monomers and polyethyleneimine (PEI) macromolecules. A hydrophilic, loose cross-linked DAIB-rich sub-layer was first formed on the CTG surface via the Debus–Radziszowski reaction, followed by the construction of a densely cross-linked PEI-rich upper layer through secondary surface cross-linking. The asymmetric architecture and chemical design of the PEI-DAIB composite modification layer facilitate rapid monovalent ion transport while efficiently rejecting divalent ions, thus overcoming the permeability-selectivity trade-off. The optimized PEI-DAIB composite membrane exhibits a high Li + permeation rate (0.75 mol m −2 h −1 ) and exceptional Li + /Mg 2+ permselectivity (72), outperforming most state-of-the-art ED membranes reported in the literature. Furthermore, the membrane demonstrates excellent stability and efficient Li + extraction from simulated salt-lake brines via two-stage ED, ultimately achieving 99.9% Li + purity with low energy consumption (∼0.2 kWh mol −1 Li + ). This work provides a promising strategy for developing high-performance SCEMs to achieve sustainable ionic resource extraction and purification.
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高影响因子
Energy & Environmental Materials
·
2026
·
IF 14.1
Yuyao Ma,Sidong Zhang,Wei Hu,Wenqing Wei,Yutao Li
Li-rich Mn-based layered oxides are recognized as cathode materials with bright prospects for rechargeable lithium-ion batteries (LIBs), primarily attributed to their low cost, high capacity output, and high operating voltage. However, their practical application is restricted by inadequate initial Coulombic efficiency (ICE) and unstable electrode/electrolyte interfaces, which result in high interfacial impedance, large overpotential, irreversible capacity fading, and inferior cycling stability. In this work, Li 3/8 Sr 7/16 Ta 3/4 Zr 1/4 O 3 (LSTZ), a fast Li + -ion conductor, is introduced as a surface coating. The LSTZ layer effectively suppresses oxygen release and electrolyte corrosion, thereby mitigating structural degradation and voltage decay while improving interfacial stability. Moreover, LSTZ provides fast Li + transport pathways, facilitating Li + diffusion, and reducing polarization, which significantly enhances rate capability. At 1 C and 25 °C, the LSTZ-coated cathode delivers a reversible capacity of 178.5 mAh g −1 with 94.4% retention after 120 cycles. Even at 0.3 C and 45 °C, it maintains 209.7 mAh g −1 with 95.7% retention after 300 cycles, demonstrating excellent thermal stability.
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高影响因子
Journal of Materiomics
·
2026
·
IF 9.6
Ying Liang,Chuangjie Guo,Ying Qi,Hetian Chen,Haocheng Yuan,Dengfeng Yu,Peipei Ding,Yue Li,Hong Liu,Yaoyu Ren,Xue Zhang,Ce-Wen Nan
The development of chloride-based solid-state electrolytes faces significant challenges in achieving an optimal balance among ionic conductivity, compatibility with Li metal, and cost-effectiveness. Herein, a novel Dy 3+ -doped Li 2 ZrCl 6 (Li 2+ x Zr 1− x Dy x Cl 6 ) halide electrolyte is rationally designed via mechanochemical synthesis. By partially substituting Zr 4+ with larger Dy 3+ ions, the optimized Li 2.25 Zr 0.75 Dy 0.25 Cl 6 exhibits: (1) superior ionic conductivity of 1.54 mS/cm (a 4.4-fold increase over pristine Li 2 ZrCl 6 ) after low-temperature annealing, (2) 3D Li + transport pathways confirmed by DFT calculations, and (3) suppressed reduction of Zr 4+ at the Li metal interface, extending symmetric cell cycling to 500 h (0.2 mA/cm 2 ). Synchrotron XAFS and XPS/TOF-SIMS analyses reveal that Dy 3+ doping broadens Li + migration channels and inhibits elemental Zr formation. The LiCoO 2 -based all-solid-state lithium batteries exhibit superior cycling stability (81.4% capacity retention at 1000 cycles) and outstanding rate performance (82.9 mA·h·g −1 at 3 C). This work presents a paradigm for designing efficient and economical halide solid-state electrolytes.
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高影响因子
危险品化学品经营许可证（带存储）