MINERALS ENGINEERING
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2026
·
IF 6
Ling-Ping Pu,Ren-Gui Xiao,Yu Kuang,Guang-Shao Yang,Xiao-Nan Lv,Xiang Ke
In situ synthesis of Li 5 AlO 4 through CO 2 controlled co-precipitation. • The hydrothermal method breaks the Li 5 AlO 4 lattice bonds, separation of Al 3+ /Li + . • A novel route for Li extraction from low-grade lithium ores. With lithium becoming increasingly essential for the production of batteries, the extraction of lithium from low-grade ores has drawn considerable attention. After roasting and acid leaching of low-grade lithium ore, the content of lithium element in the leachate is relatively low, while the content of impurities (Al, Fe, Ca, etc) is relatively high, which complicates the separation and the preparation of high-purity lithium salts. Herein, the leachate derived from low-grade clay-type lithium ore is employed as the raw material. Initially, chemical precipitation is applied to sequentially remove Fe 3+ , Ca 2+ , and Mg 2+ through pH adjustment. Subsequently, CO 2 is introduced into a solution containing Al 3+ and Li + to control the pH, thereby regulating the precipitation kinetics of Al 3+ . This enables the co-precipitation of Al 3+ /Li + and in-situ generates pentalithium aluminate (Li 5 AlO 4 ) compounds. Finally, a hydrothermal method is employed to successfully cleave the Li–O/Al–O bonds within the Li 5 AlO 4 lattice, achieving separation of Al 3+ and Li + ions. This process facilitates Li + enrichment and the successful preparation of high-purity Li 3 PO 4 . Meanwhile, the aluminum oxyhydroxide (AlO(OH)) as a byproduct was obtained. Products and intermediate stages characterization and analysis were performed using various analytical methods. Theoretical analysis was conducted on the Al-Li co-precipitation and the subsequent Li + leaching mechanism. This innovative method offers a novel approach for the efficient extraction of lithium resources from low-grade lithium ores. Download: Download high-res image (134KB) Download: Download full-size image
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高影响因子
ACS Applied Energy Materials
·
2026
·Vol. 9
·期 14
·9390-9399
·
IF 5.5
Zhan Wenqi,Zhai Xingwu,Hu Jiaping,Xu Han-Shu,Tang Kaibin
Lithium−carbon dioxide (Li−CO 2 ) batteries are promising energy storage systems due to their high theoretical energy density and capability for CO 2 utilization, yet their practical performance is limited by sluggish reaction kinetics. Here, we report an effective edge-site engineering strategy to enhance the catalytic activity of MoS 2 nanosheets via controlled H 2 O 2 etching. Density functional theory (DFT) calculations reveal that edge sites exhibit significantly stronger adsorption toward key intermediates (Li, CO 2 , and Li 2 CO 3 ) than the basal plane, identifying them as dominant active centers. Guided by this insight, a series of MoS 2 nanosheets with tunable edge-site densities were synthesized on carbon paper. Structural characterizations confirm that moderate etching effectively increases edge-site exposure while preserving structural integrity. Electrochemical measurements demonstrate that the optimized MoS 2 -45 s electrode delivers a low overpotential of 0.77 V, excellent rate capability, and stable cycling over 700 h with an energy efficiency exceeding 75%. In short, our work highlights the critical role of edge-site regulation in improving catalytic performance and provides a rational strategy for designing advanced cathode materials for Li−CO 2 batteries.
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DOI
高影响因子
CHEMISTRY-A EUROPEAN JOURNAL
·
2026
·
IF 3.6
Zhihong Yu,Yutong Kuai,Junkai Lin,Mulan Yang,Guihuan Chen,Ziyun Zheng,Yixi Huang,Aiju Li
Although lithium-sulfur (Li-S) batteries exhibit extensive potential application as a novel type of rechargeable battery, their practical implementation is hindered by the shuttle effect of soluble polysulfides and the sluggish redox kinetics involved in converting polysulfides to Li 2 S 2 /Li 2 S. Herein, we synthesized cerium-zirconium oxide/carbon nanotube (CZO/CNT) composite via a facile hydrothermal-calcination method for use as a separator coating. In this material, the highly conductive network structure of CNTs optimizes charge transport pathways, ensuring rapid lithium-ion migration. Meanwhile, the strong polarity of CZO exhibits strong adsorption-catalytic capacity toward Lewis-basic polysulfides, thereby accelerating the reaction kinetics and improving the deposition efficiency of Li 2 S. Based on these merits, the Li-S battery utilizing CZO/CNT separator delivered a high discharge capacity of 1339 mAh g −1 at 0.1 C. In particular, the battery exhibited exceptional cycling stability, retaining a reversible capacity of 490 mAh g −1 for 800 cycles at 2 C, with a 0.059% capacity fade per cycle. This research demonstrates the potential of CZO/CNT composite in enhancing Li-S battery performance, offering a promising approach for developing advanced separator materials. Graphical This designed CZO/CNT-modified separator effectively facilitates Li 2 S deposition and enhances the redox kinetics. Consequently, the resulting Li–S battery exhibits robust cycling stability and remarkable capacity retention.
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高影响因子
DESALINATION
·
2026
·
IF 9.9
Chenghao Qiu,Yujiao Cao,Haiping Su,Jun Chen,Jianguo Yu,Sen Lin
Hollow Li/Al-LDHs were rationally designed to overcome diffusion limitations of granular adsorbents. • Hydrophilic binder and spinning-parameter regulation optimized hollow Li/Al-LDHs. • Finite element analysis revealed the mass-transfer enhancement of hollow structures. • Optimized hollow Li/Al-LDHs showed fast Li + kinetics and efficient dynamic cycling. Adsorption has become a central approach for industrial salt lake lithium extraction. A structural engineering strategy is developed to rationally fabricate hollow fiber-structured Li/Al layered double hydroxide granules (HF-LDHs) with enhanced mass transfer to overcome the extraction efficiency limitation from conventional granulation methods. The hollow architecture provides shortened diffusion pathways through a favorable pore microstructure and dual accessible surfaces for Li + directional migration with markedly accelerating intraparticle transport. HF-LDHs are characterized by good hydrophilicity and structural integrity with a compressive of 4.99 MPa, and the optimized granules can reach adsorption equilibrium within 60 min, which is shortened by over half to that of these traditional lithium adsorbent granules. Fixed-bed dynamic evaluation further demonstrates a rapid 2 h saturation and high effluent quality with a Mg 2+ /Li + ratio below 2. Moreover, HF-LDHs maintain a stable working capacity of about 7.20 mg/g over 20 cycles, with a high Li + extraction rate of 2.70 (mg/(g·h)), highlighting their potential for low-grade lithium recovery. Download: Download high-res image (240KB) Download: Download full-size image
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DOI
高影响因子
JOURNAL OF MATERIALS SCIENCE
·
2026
·Vol. 61
·期 39
·29832-29850
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IF 4.4
Yue Aobo,Meng Xianhe,Ruan Zikang,Ren Huixin,Sun Qiang,Hu Xiaoyu,Tang Anchun,Yu Nengjun,Kang Qiaoling,Yan Lijing
The PVDF-based polymer electrolyte has the disadvantages of low ionic conductivity and low Li + migration number at room temperature, which hinders its application in lithium-ion batteries. Herein, polymer composite electrolytes were constructed utilizing three polymorphic Ce-MOFs as functional fillers to enhance its performance. The homogeneously dispersed Ce-MOF fillers restricted the reorganization of PVDF-HFP chains, thereby led to the change in crystallization and aggregation state of the polymer. Moreover, their porous structure and active sites also promoted the Lewis acid–base interactions with the polymer and TFSI − , promoting ion dissociation. Temperature-induced phase variation produced distinct porous crystalline structures formed the tetragonal-phase MOF-76-Ce exhibiting excellent properties with a room-temperature ionic conductivity of 7.89×10⁻ 4 S cm⁻ 1 and a Li + transference number of 0.79. The full cell assembled with this electrolyte and high-energy-density polyanionic LiMn 0.6 Fe 0.4 PO 4 cathodes demonstrated good cycling stability. It could reach discharge capacity of 147 mAh g⁻ 1 at 0.2 C and a capacity retention of 91% after 200 cycles at 0.5 C under a high cutoff voltage of 4.5 V. This work offers an effective filler strategy for developing high-performance quasi-solid-state polymer electrolytes and highlights the crucial role of metal–organic framework topology in advancing safe and durable lithium metal batteries. Graphical abstract
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高影响因子
ACTA MATERIALIA
·
2026
·
IF 10.7
Yang Wang,Rui Zhang,Ting Zhang,Yanle Yuan,Chunwu Lei,Weifang Liu,Kaiyu Liu,Guang Feng,Tao Chen
Lithium–lithium nitrate batteries are regarded as a promising high-capacity alternative to lithium–ion batteries due to their superior specific capacity, which is enabled by the unique dual role of LiNO₃ as both lithium salt and active cathode material. However, their practical application is hindered by the unstable lithium anode interface and sluggish cathode kinetics, resulting in limited cycle life and safety concerns. Herein, this work presents a remote interfacial regulation engineering via nanoscale ZnPtFeCuNiCo High-entropy alloy (ZPFCNC–HEA) cathode catalyst. During the initial resting phase, this catalyst effectively decomposes LiNO₃ in the electrolyte to directionally generate active nitrogen intermediates (LiNO₂/LiNO). These intermediates spontaneously migrate to the anode interface, where they induce the in–situ formation of a Li₃N-rich solid electrolyte interphase (SEI) during subsequent electrochemical cycling, achieving remote interfacial regulation. The resulting SEI significantly enhances interfacial stability and charge transfer efficiency. Combined with the exceptional catalytic activity of ZPFCNC–HEA toward the NO₃⁻/NO₂⁻ redox reaction, the assembled Li–LiNO₃ battery employing this cathode catalyst delivers a remarkable specific capacity of 15019 mAh g⁻¹ and maintains stable operation for over 700 cycles. Furthermore, an Ah-level pouch cell (1.522 Ah) is demonstrated, validating a novel remote interfacial regulation of SEI strategy for practical high–energy batteries.
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高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
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2025
·
IF 6.3
Zexian Xu,Wen Zhu,Weixing Liu,Wenbo Liu,Zican Liu,Ken Chen,Kang Li,Peiqi Lun,Jiawei Zhu,Muhammad Idrees,Saima Batool
The garnet-type Li 6.4 La 3 Zr 1.4 Ta 0.6 O 12 (LLZTO) is considered a promising solid-state electrolyte (SSE) due to its high ionic conductivity and electrochemical stability. However, the surface of LLZTO easily reacts with H 2 O and CO 2 in the air, forming a passivation layer of Li 2 CO 3 . This reaction further deteriorates the interface between LLZTO and the Li anode, resulting in poor wettability. Consequently, significant gaps form between LLZTO and the Li anode, leading to uneven deposition of Li during the cycling. Li dendrites can grow into these gaps, eventually penetrating the electrolyte and causing a short circuit in the battery. In this study, a surface modification method is investigated, where a thin film of titanium is deposited onto the surface of LLZTO electrolyte tablets using magnetron sputtering. The effects of magnetron sputtering deposition titanium film process parameters—chamber pressure, bias voltage, and temperature—on the electrochemical properties of button cells were investigated. The results indicated that LLZTO electrolyte tablets coated with titanium exhibited low interfacial resistance, high cycle stability, and significant inhibition of Li dendrites under optimized conditions of 1.0 Pa chamber pressure, 100 V bias voltage, and 150 ℃ temperature. Under these conditions, the interface resistance decreased significantly from 1437.9 Ω to 190.19 Ω. Additionally, the Li symmetric cell assembled with the titanium-coated LLZTO electrolyte tablet demonstrated stable cycling for over 1200 h at 25 ℃ under a current density of 0.1 mA·cm −2 .
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高影响因子
JOURNAL OF POWER SOURCES
·
2025
·
IF 7.9
Feng Wang,Meiqi Zheng,Xiyan Zheng,Peng Liu,Daosheng Liu,Jiageng Liu,Shankui Wei,Chun Wang,Yongdong Liu,Jianqiu Deng
Due to the remarkable high energy density and high operating voltage, lithium-rich layered oxides (LLOs) are emerging as one of the most promising candidates for high-specific-energy cathode materials . However, the poor cycling stability and severe voltage degradation are key barriers, which limit their practical application. In this paper, Bi 2 O 3 modified Li 1.2 Mn 0.6 Ni 0.2 O 2 (LMO@BO) is developed to address these challenges. The uniform and dense coating is constructed on the surface of LMO, which utilizes number of oxygen vacancies in its crystal structure to mediate the release of O 2 and mitigate the irreversible loss of lattice oxygen, further suppress the phase transformation during the cycling process. Specifically, the specific discharge capacity of the LMO@BO cathode maintains 197.9 mAh g −1 at 1C with capacity retention rate of 96.3 % after 200 cycles(vs. unmodified LMO with capacity of 147.5 mAh g −1 and retention rate of 80.1 %. Meanwhile, a small amount of Bi 3+ is doped into the bulk phase to broaden the Li + migration channel, resulting in an efficient Li + diffusion. Overall, Bi 2 O 3 modified LMO sample is conducive to meeting the requirements of high energy density for lithium-ion batteries applications.
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高影响因子
Journal of Materials Chemistry A
·
2026
·
IF 9.2
Tao Yang,Peihang Li,Yingxue Mei,Dong Cai,Chongju Chen,Shuo Yang,Zhi Yang
To address the severe lithium polysulfide (LiPS) shuttle effect and sluggish redox kinetics of lithium–sulfur (Li–S) batteries, especially under high-temperature conditions, we introduce a high-efficiency natural thermostable catalyst, oxalate oxidase (OxOx), into the cathodes. Endowed with a unique hexameric structure, OxOx maintains robust catalytic activity at elevated temperatures (≥60 °C) and facilitates rapid electron/Li⁺ transport via its C-terminal α-helices. More importantly, its manganese-active center enhances LiPS adsorption and accelerates the liquid-solid conversion of sulfur species by lowering reaction energy barriers. Consequently, the OxOx-modified cathode delivers outstanding rate performance, long-cycle stability with ultra-low capacity decay, and effective shuttle suppression even under harsh high-temperature operating conditions.
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高影响因子
Microstructures
·
2026
·Vol. 6
·期 2
·N
·
IF 8.5
Min Liu,Yuanqi Qian,Huhui Fu,Yaning Zhang,Jingbing Lu,Qi Xiong,Dapeng Jiang,Huamin Kou,Anhua Wu,Liangbi Su
Lanthanide-doped ultrasmall upconversion nanocrystals exhibit unique optical properties that differ significantly from bulk materials, making them highly promising for diverse applications. However, their widespread applications have long been impeded by extremely weak photoluminescence due to severe surface quenching effect. Herein, we present a Li+-doping-induced phase engineering strategy to achieve significantly enhanced upconversion luminescence in ultrasmall Cs2ZrF6:Yb/Er nanocrystals (NCs). While initial Li+ doping improves crystallinity, yielding up to a 63-fold emission increase, further doping triggers a phase transition to form heterophase nanocrystals consisting of trigonal Cs2ZrF6 and tetragonal LiYbF4. The synergistic effect of improved crystallinity and reduced local symmetry around lanthanide ions results in a 302-fold boost in emission intensity, even as the particle size decreases to ~6.1 nm. Moreover, these ultrasmall nanocrystals display anomalous anti-thermal quenching behavior, with luminescence intensity increasing as temperature rises from 303 to 483 K, driven by defect-mediated energy repopulation. This work not only offers a robust approach for fabricating ultrasmall, high-brightness NCs but also establishes phase engineering as a pivotal mechanism for modulating local crystal field, paving the way for high-performance, thermally stable ratiometric nanothermometry.
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高影响因子
ACS Applied Energy Materials
·
2021
·
IF 6.024
Zhenwei Li,Shaoshao Jiao,Di Yu,Qian Zhang,Kang Liu,Jishu Han,Ziyang Guo,Jie Liu,Lei Wang
Because of the advantages of high theoretical capacity, low cost, and environmental friendliness, lithium–sulfur (Li–S) batteries have attracted wide attention as promising energy storage system for electric vehicles and smart power grids. However, their commercialization is still greatly restricted by their poor cycle stability, resulting from the severe shuttling of soluble lithium polysulfides (LiPSs) during cycling. Herein, we designed a CNT@cationic polymer/rGO (CNT@CP/rGO) blocking layer on a commercial PP separator. Such a blocking layer can strongly fix LiPSs by the electrostatic attraction effect between the cationic polymer backbones and the polysulfide anions. As a result, a Li–S battery equipped with a CNTs@CP/rGO-functionalized separator showed much improved cycling stability with a capacity fading rate as low as 0.06% per cycle during 700 cycles at 1 C. Especially, high areal capacity of 6.3 mAh cm–2 was also achieved with a high sulfur loading of 8.5 mg cm–2 after 50 cycles. This work highly emphasizes that the electrostatic attraction mechanism between cationic polymers and polysulfides can effectively restrain the polysulfide shuttling and thus significantly improve the electrochemical performance of Li–S batteries.
研究领域:
储能
·
电化学
·
材料科学
·
电池技术
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高影响因子
ACS Applied Materials & Interfaces
·
2020
·
IF 8.758
Yilong Lin,Dongdong Chen,Shuanjin Wang,Dongmei Han,Min Xiao,Yuezhong Meng
The effective passivation of a sulfur electrode in Li–S pouch cells is addressed by increasing the discharging cutoff voltage from 1.6 to 2.0 V. This simple method can effectively suppress the generation of solid and insulated Li2S deposition while reserves the majority of capacity and improves the cyclic stability of Li–S pouch cells. Upon increasing the discharging cutoff voltage from 1.6 to 2.0 V, the Li–S pouch cell loses only 8% of the initial discharge capacity and remarkably promotes the capacity retention rate from 62.4 to 91.6% within 40 cycles at 0.05C. The analysis of electrochemistry and physics of a sulfur cathode demonstrates that the less Li2S deposition under the discharging cutoff voltage of 2.0 V can ensure fast reaction kinetics in Li–S pouch cells with high areal sulfur loadings and lean electrolyte. The mechanism of the passivation of a sulfur electrode is studied and discussed in detail. This brand new methodology may provide an effective approach to enhance the cyclic stability of a Li–S battery.
研究领域:
储能
·
电化学
·
材料科学
·
电池技术
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高影响因子
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