Materials Today Chemistry
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2026
·
IF 7.4
Geng Gao,Hui Zhang,Jian Tang,Junxian Hu,Yin Li,Shaoze Zhang,Keyu Zhang,Feng Liang,Bin Yang,Yaochun Yao
A pioneering phosphate-intercalation strategy is introduced to improve kinetics for lithium storage. • The Fe–O–P framework that actively modulates lithium-ion transport within the iron oxalate lattice. • The optimized anode achieves an exceptional capacity of 1643 mAh g −1 after 300 cycles at 0.5 A g −1 . Iron oxalate has recently attracted considerable interest as a promising conversion-type anode for rechargeable batteries owing to its intrinsically high theoretical capacity. However, its practical application is severely limited by sluggish reaction kinetics, resulting in poor rate performance. In this work, polyanionic phosphate species are introduced as pre-intercalated guest ions to construct a Fe–O–P framework that actively modulates lithium-ion transport within the iron oxalate lattice. Systematic control of the phosphate-to-oxalate substitution ratio effectively tunes the lattice dynamics of FeC 2 O 4 , thereby enhancing the lithium-storage kinetics of the material. Combined experimental characterization and theoretical analysis reveal that phosphate intercalation not only accelerates electron transfer but also enlarges the interlayer spacing that accelerate lithium-ion diffusion. Consequently, the phosphate-intercalated iron oxalate delivers an ultrahigh reversible capacity of 1643 mAh g −1 after 300 cycles at 0.5 A g −1 and maintains a rate capacity of 740 mAh g −1 at 5 A g −1 . This work demonstrates the essential role of the pre-intercalated polyanion on improve kinetics for lithium storage in iron oxalate and provides a rational design strategy for high-performance conversion-type anodes with intrinsically fast lithium-ion transport. Pre-intercalated polyanionic phosphate is introduced into iron oxalate to regulate intrinsic lattice dynamics and accelerate bulk lithium-ion transport. Download: Download high-res image (264KB) Download: Download full-size image
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高影响因子
ADVANCED FUNCTIONAL MATERIALS
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2026
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IF 19.9
Mingqi Xu,Bibo Cai,Wei Liu,Xinghui Liang,Xinyou He,Baishan Chen,Tai Peng,Xing Ou
All-solid-state lithium-sulfur batteries (ASSLSBs) with polymer electrolytes have high theoretical energy density and improved safety, providing appealing potential for next-generation energy storage. However, limiting the dissolution of long-chain polysulfides (LiPSs) in polymer electrolyte and achieving high S loading in cathodes remains a challenge. To tackle this issue, we demonstrate a 3D electrode composed of a mixture of styrene butadiene rubber and lithium carboxyl methyl cellulose as the binder, equipped with a high concentration of all-solid-state polyethylene oxide (PEO) -based electrolyte filled with LLZTO (Li 6.5 La 3 Zr 1.5 Ta 0.5 O 12 ) and LiPSs (named LiPS/LLZTO-CL/S). The synergistic design exhibits outstanding structural stability, preventing the dissolution of long-chain LiPSs, enhancing the kinetics of short-chain LiPSs, alleviating volume expansion, and offering pathways for ion/electron transport. The battery possesses attractive cycling stability and can maintain high capacity retention (1106 mAh g −1 even after 500 cycles) at 0.2 C. Its structural and electrochemical advantages enable stable cycling at a high sulfur loading of 7.0 mg cm −2 and 0.5 C without electrolyte in the cathode. This work proposes a novel strategy for the structural design of high-loading polymer ASSLSBs.
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Journal of Environmental Chemical Engineering
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2026
·Vol. 14
·期 5
·123651
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IF 7.5
Ying Hu,Yanan Wei,Qian Zhang,Xinyu Xu,Wenmeihui Zhao,Rongmei Liu,Guixiang Qian,Zhongliang Tian,Xiangwan Lai,Chao Yang
The extraction of lithium from high Na/Li ratio salt lakes brine remains challenging due to the similar physicochemical properties of Li⁺ and Na⁺. In this work, a LiMn 2 O 4 (LMO)-Zn mixed-ion battery system was constructed for electrochemical lithium extraction from high Na/Li brine. The electrochemical behavior and lithium extraction performance of the system under different Na⁺ concentrations, temperatures, and current densities were systematically investigated. The results demonstrated that the LMO-Zn system maintained stable electrochemical performance in 0.1 M LiCl + 4.0 M NaCl electrolyte. At discharge rates from 0.1 C to 0.75 C, the discharge potential only slightly decreased from 2.03 V to 1.94 V, indicating favorable rate capability and electrode stability. The titanium felt current collector exhibited an initial discharge capacity of 124.3 mAh g⁻¹ and a charge capacity of 139.5 mAh g⁻¹ . ICP analysis revealed that the Li⁺ concentration in the ZnCl 2 solution increased from 0 to 2.75 mg L⁻¹ after electrochemical cycling, while the Li⁺ concentration in the Li/Na mixed solution decreased from 10 to 6.87 mg L⁻¹ , confirming effective lithium extraction and enrichment behavior. Furthermore, XRD, XPS, SEM, and GITT analyses demonstrated the good reversibility and structural stability of the LMO electrode during cycling. This work provides a promising strategy for lithium extraction from high Na/Li ratio salt lakes brine.
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JOURNAL OF COLLOID AND INTERFACE SCIENCE
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2026
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IF 9.6
Shuo Liang,Huizhen Liu,Fan Yang,Weilin Dou,Yanmin Guo,Chunyan Lai
Lithium‑carbon dioxide (Li-CO 2 ) batteries, combining high energy density with carbon dioxide conversion capability, were recognized as a promising next-generation energy storage system. However, their practical application is still hindered by the sluggish kinetics of the carbon dioxide reduction reaction (CO 2 RR) and the carbon dioxide evolution reaction (CO 2 ER). Herein, a self-supporting heterostructure catalyst composed of amorphous CoS x and crystalline MnS (a-CoSₓ/c-MnS) has been designed based on an amorphous/crystalline interface synergistic strategy. This unique interface induces strong electronic coupling and charge redistribution, which optimizes the adsorption of reaction intermediates and thereby significantly enhances the bifunctional activity for both CO 2 RR and CO 2 ER. Simultaneously, the three-dimensional (3D) urchin-like open architecture provides multi-level channels for electron, ion, and gas transport. The interface regulates Li 2 CO 3 discharge products into a loose, porous network of blocky crystal clusters effectively, enabling easier decomposition and mitigating passivation. The Li-CO 2 battery based on the a-CoSₓ/c-MnS cathode exhibits an ultra-low overpotential of 0.22 V, a high Coulombic efficiency of 98.62% and an energy efficiency of 91.38%. Furthermore, the battery demonstrates stable cycling for over 2000 h at a limited capacity.
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PubMed
高影响因子
JOURNAL OF MEMBRANE SCIENCE
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2026
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IF 8.8
Zhongbiao Wang,Qiuyan Bi,Xin Shi,Zizhen Peng,Zhicheng Wang,Wenzhong Ma,Yakai Lin,Shiai Xu
In this work, we proposed a staged interfacial reaction strategy to regulate the formation of the polyamide selective layer by separating nascent-layer formation from subsequent densification, thereby addressing the mismatch between monomer diffusion and reaction kinetics in conventional interfacial polymerization (IP) and enabling high permeability and selectivity in nanofiltration (NF) membranes for Mg 2+ /Li + separation. The optimized membrane (SIP) was fabricated using 0.2 wt% BAPP and 0.1 wt% TMC for 120 s in Stage-I, followed by 0.5 wt% BAPP for 120 s in Stage-II. Compared with membranes prepared by conventional one-step IP, the SIP membrane exhibited a thinner selective layer (14.89 ± 1.16 nm), a higher amide-related O C–N content (50.96 at%), a more favorable hydration state, and a lower molecular weight cut-off (330 Da), indicating the formation of a thinner yet more compact and uniform polyamide network. Benefiting from these tailored structural and physicochemical features, the SIP membrane exhibited robust Mg 2+ /Li + separation over a broad range of feed Mg 2+ /Li + mass ratios, with high Mg 2+ rejection, low Li + rejection, and stable water flux. During long-term filtration tests, the Mg 2+ /Li + mass ratio in the permeate remained below 0.68, while the Mg 2+ rejection and separation factor were maintained at 95.57%–97.79% and 25.50–35.34, respectively. These results demonstrate that the staged interfacial reaction strategy is an effective platform for regulating polyamide selective layer formation and offers a promising route for lithium extraction from brines with high Mg 2+ /Li + mass ratios.
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高影响因子
CHEMICAL ENGINEERING JOURNAL
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2026
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IF 12.5
Zhicheng Wang,Xin Shi,Zizhen Peng,Wenzhong Ma,Yakai Lin,Hideto Matsuyama,Qiuyan Bi
A SISAIP strategy was developed to regulate interfacial PA formation. • SDS/NaCl regulation produced ultrathin PA layers with sub-nanometer pathways. • The membrane achieved S Li, Mg of 90.9 and permeance of 9.5 L m −2 h −1 bar −1 . • Stable operation and strong flux recovery were obtained under brine-relevant tests. The rapidly increasing global demand for lithium has stimulated the development of advanced membrane technologies for lithium extraction from salt-lake brines. Nanofiltration (NF) membranes with precisely regulated subnanometer transport pathways are highly attractive for Li + /Mg 2+ separation; however, the rational construction of selective layers that simultaneously deliver high ion selectivity and fast water transport remains challenging. Herein, we report a scalable surfactant–inorganic salt–assisted interfacial polymerization (IP) strategy, termed SISAIP, to fabricate high-performance polyamide NF membranes. Interfacial tension, dynamic light scattering, and UV–vis analyses indicated that sodium dodecyl sulfate enriched at the water/oil interface and regulated PEI transport across the interface, whereas NaCl modified the aqueous-phase microenvironment, moderated PEI diffusion toward the interface, and helped confine the interfacial reaction zone. This coordinated regulation produced an ultrathin PA selective layer with an apparent thickness of 11.2 ± 0.6 nm and compact subnanometer transport pathways. The optimized membrane achieved a water permeance of 9.5 L·m −2 ·h −1 ·bar −1 , an S Li,Mg of 90.9, and Mg 2+ rejection above 99.5%, corresponding to 578.6% and 437.9% increases in water permeance and S Li,Mg over the control T-IP membrane, respectively. The membrane also maintained stable performance during 120 h of continuous filtration and exhibited favorable fouling/scaling resistance, with a flux recovery ratio of 100% under organic-conditioned CaSO 4 scaling conditions. This SISAIP strategy provides a promising and scalable route for designing advanced NF membranes toward efficient lithium recovery from salt-lake brines.
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高影响因子
Journal of Energy Chemistry
·
2026
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IF 15.6
Xin He,Yujie Zhang,Qingyuan Wang,Cheng Xu,Qionglin Shi,Min Zhou,Wei Wang,Haomiao Li,Kai Jiang,Kangli Wang
The instability of the electrode-electrolyte interface (EEI) at high voltages remains a major obstacle to developing high-energy-density lithium-ion batteries (LIBs). Solvent selection critically influences solvation structure and EEI formation, which ultimately determine cycling stability. However, a systematic framework for rationally designing solvents for high-voltage applications is still lacking. Herein, we propose a descriptor-driven strategy for solvent selection and electrolyte formulation by integrating solvent solvation energy, surface adsorption strength, and the highest occupied molecular orbital level as key descriptors. These descriptors synergistically regulate solvent behavior across the entire interfacial evolution: enabling Li + solvation, co-migration into the inner Helmholtz plane, strong surface passivation, and controlled decomposition to build a robust LiF-rich cathode-electrolyte interphase. Screening fluorinated solvents identifies 3,3,3-trifluoropropylene carbonate (TFPC) as an optimal primary solvent. A TFPC-based electrolyte suppresses LiCoO 2 (LCO) structural degradation and electrolyte oxidation at 4.6 V (vs. Li/Li + ), enabling a 3.5 Ah LCO||graphite pouch cell to retain 80.4% capacity after 450 cycles at 1 C. This work establishes a descriptor-guided solvent design framework, highlights the feasibility of high-voltage LIBs based on the commercial salt, and provides new insights into EEI stabilization mechanisms for high-energy-density battery systems. The behavior of solvent molecules at the inner Helmholtz plane (IHP) critically determines the formation and stability of the cathode-electrolyte interphase (CEI). A descriptor-driven solvent screening strategy is presented to synergistically regulate the entire interfacial evolution process, encompassing Li ion solvation, migration toward the IHP, surface passivation, and controlled decomposition. This approach facilitates a robust F-rich CEI, demonstrating how molecular-level solvent design fundamentally links to high-voltage interfacial stabilization. Download: Download high-res image (217KB) Download: Download full-size image
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高影响因子
COMPOSITES COMMUNICATIONS
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2026
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IF 8.6
Xiaoxiao Li,Kai Chen,Zeng Liu,Xuping Jia,Keding Chen,Yue-E Miao
An integrated composite cathode with a programmable topological crosslinked polymer electrolyte (PTCPE) is fabricated via in-situ polymerization. • The programmable crosslinked network with tunable oxygen (ether)/oxygen (carbonyl) ratios can precisely regulate the Li + coordination structure. • The integrated LFP/PTCPE architecture with optimized carbonylation structure enables stable cycling at 0.5 C. Solid polymer electrolytes (SPEs) feature exceptional processability and interfacial compatibility for solid-state lithium metal batteries (SSLMBs). However, conventional polyether-based SPEs are still limited by sluggish ion transport kinetics arising from the strong Li + -ether oxygen (EO) coordination and high interfacial resistance toward the electrodes. Herein, an integrated cathode/polyether electrolyte is fabricated via in-situ copolymerization of poly(ethylene glycol) methyl ether acrylate (PEGMA) with a polycarbonate (PC)-based crosslinker. The resultant programmable topological crosslinked polymer electrolyte (PTCPE) contains carbonyl groups (-C=O) from PC segment that can weaken the Li + -EO coordination interaction in PEGMA matrix and reduce Li + transport barrier within the cathode/polymer electrolyte composite. By tuning the molecular weights of the PC crosslinker, the optimized spatial arrangement of -C=O and EO motifs can effectively reshape the Li + coordinated structure, thereby enabling low-energy barrier Li + transport pathways in the crosslinked structure. Consequently, the PTCPE electrolyte at an optimized PC molecular weight achieves an increased room-temperature ionic conductivity of 1.26×10 −4 S cm −1 , supporting the Li symmetric cell to cycle over 1400 h at 0.05 mA cm -2 . Furthermore, the integrated LiFePO 4 electrode/PTCPE electrolyte enables solid-state full cell to deliver a high initial specific capacity of 154.7 mAh g -1 at 1 C. This study highlights a strategy for tailoring Li + solvation environment to boost ionic conductivity, advancing practical applications of polyether-based SPEs in solid-state LMBs. An integrated cathode/polymer electrolyte with programmable topological crosslinked polyether-based electrolyte is proposed to enhance Li + transport kinetic within the polyether matrix via carbonylation crosslinking strategy. The precisely designed crosslinking density of the SPE enables controllable regulation of the Li + -O coordination configuration. Download: Download high-res image (471KB) Download: Download full-size image
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高影响因子
Nature Communications
·
2026
·
IF 18.1
Wang Wei,Qiao Wang,Chen Zhuo,Chen Jialei,Chen Shan,Zhao Zhuang,Liao Xuelong,Song Wenge,Huang Rong,Lu Tiantian,Li Youzeng,Liu Haonan,Sun Jiacheng,Xu Xing,Yan Zhenhua,Zhao Qing,Liu Zhongfan,Chen Jun,Wang Huan
Low-temperature Li||CF x batteries undergo performance degradation due to the insulating nature of CF x and sluggish Li + kinetics. Herein, we present a dual-modification strategy integrating porous positive electrode architecture design with customized electrode-electrolyte interphase engineering to overcome these limitations. Our approach features: (i) plasma-enhanced chemical vapor deposition-constructed mesoporous CF x with conformal carbon coating, and (ii) electrolyte-mediated in situ formation of a sulfur-rich inorganic interphase layer on CF x surface. The engineered porous framework establishes efficient Li + diffusion channels, while the electrolyte-derived interphase significantly enhances Li + transport and desolvation kinetics. Moreover, the carbon coating substantially improves electronic conductivity and suppresses LiF stacking. The optimized Li||CF x system delivers capacities of 428.4 mAh g −1 at −50 °C and 2 A g −1 , and 333.4 mAh g −1 at −70 °C and 0.1 A g −1 . Practical 5 Ah pouch cells deliver competitive specific energies of 470 and 332 Wh kg −1 at −50 and −70 °C under 0.01 A g −1 , respectively.
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高影响因子
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
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2026
·
IF 3.9
Lilei Yang,Zhongwei Ding,Yunpan Ying,Zhengtao Zhu
The selective separation of Li+ from Na+ in high-salinity solutions remains a challenge. Although polymer inclusion membranes (PIMs) are promising, their application is hindered by the rapid dissipation of the proton gradient, which requires continuous acid/base addition. Herein, we present an electric field-assisted PIM-electrodialysis (PIM-ED) process that overcomes this limitation by using in situ water electrolysis to generate and sustain a stable proton gradient, eliminating chemical additives. Mechanistic investigations reveal that this electrically sustained proton gradient is a necessary condition for achieving efficient Li+ transport through the Li+/H+ counter-transport mechanism in the PIM process. Under optimized conditions, the Li+ permeability coefficient reached 3.50 μm·s–1, an order of magnitude higher than in PIMs, with excellent selectivity (separation factor Li+/Na+ > 31). When applied to the real Li2CO3 mother liquor, the process produced purified Li+ with a concentration of 21.17 g·L–1, meeting industrial feedstock requirements.
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高影响因子
ACS Applied Nano Materials
·
2026
·
IF 5.8
Mengxia Shen,Xiangming Zhang,Liguo Yang,Chanjuan Liang,Jiayin Li,Jianfeng Huang,Yan Li,Zhengliang Zhang,Xunfei Zheng
Lithium iron phosphate (LiFePO4) is recognized as one of the potential cathode materials for lithium-ion batteries owing to its environmental sustainability, affordable cost, and excellent thermal stability. Nevertheless, the sluggish diffusion of lithium ions and the relatively limited electronic conductivity emerge as critical factors that impede the advancement of LiFePO4 cathode materials. In this study, we present a simple, effective, and environmentally friendly method for incorporating cellulose nanofibers (CNF) as an additional carbon source into metal–organic coordinated structure-derived carbonized LiFePO4 cathode material (LFP@C). The hierarchical porous electrode material (LFP@C/CNF), consisting of a three-dimensional carbon nanofiber conductive network integrated with nitrogen-doped carbon-coated LiFePO4 nanoparticles, is successfully prepared via freeze-drying followed by pyrolysis. CNF forms a stable interaction with LFP@C particles through electrostatic self-assembly, thereby constructing a “core (LFP)-shell (C)-network (CNF)” multi-level hierarchical structure. The unique structure significantly shortens the transport distance for lithium ions and electrons, thereby enhancing their mobility. Additionally, the porous nature of this structure provides ample space for electrolyte storage. Owing to these distinctive structural features, LFP@C/CNF composites demonstrate exceptional specific capacity (158.5 mAh g–1 at 0.1 C), impressive rate performance (116.5 mAh g–1 at 5 C), and remarkable cycling stability (87.08% capacity retention after 200 cycles at 1 C). These outstanding characteristics position LFP@C/CNF composites as highly promising candidates for use in next-generation lithium-ion batteries.
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高影响因子
SusMat
·
2026
·
IF 19.2
Yongzheng Gao,Xin Tao,Yanli Chen,Xinqian Yu,Yijun Zhu,Yongchao Liang,Qiong Peng,Xiu Gong,Xiaosi Qi,Guangmin Zhou
Spinel oxides have attracted increasing attention as cathode in Li–CO 2 batteries because of their cost–effectiveness and facile synthesis. Unfortunately, their catalytic activity for CO 2 reduction reaction and CO 2 evolution reaction remains below the necessary for the implementation at scale. Here, the introduction of first–row 3d transition metals (TMs) in Fe 3 O 4 can construct an asymmetric M–O–Fe backbone, which is defined as the bond strength polarization and leads to continuous modulation in the electron activity (TM used in this work including Mn, Co, Ni, and Cu). Theoretical calculations confirm that the bond strength polarization can optimize the adsorption behavior of the reactants (CO 2 , Li + , and Li 2 CO 3 ), promoting the catalytic activity toward CO 2 reduction and CO 2 evolution. Experimental and theoretical results display a volcano–shaped relationship between the bond strength polarization and the catalytic activity in the TM–doped Fe 3 O 4 cathodes. The decisive role of the discharge product morphology in battery performance is also delineated. These findings enable the design of an efficient catalyst, Mn–Fe 3 O 4 , which can run stably up to 2000 h with a low voltage gap of ∼0.8 V. This work offers a rational viewpoint for tuning the catalytic activities of TM oxides in Li–CO 2 batteries.
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