CERAMICS INTERNATIONAL
·
2021
·
IF 4.527
Li Yang,Xiao Huang,Changfei Zou,Xiyuan Tao,Lei Liu,Kaili Luo,Peng Zeng,Qiushi Dai,Yongfang Li,Lingguang Yi,Zhigao Luo,Xianyou Wang
Lithium-sulfur (Li–S) batteries are attractive due to their high theoretical energy density . However, conventional Li–S batteries with liquid electrolytes undergo polysulfide shuttle-effect and lithium dendrite formation during charge/discharge process, leading to poor electrochemical performance and safety issues. Garnet type Li 7 La 3 Zr 2 O 12 (LLZO) solid-state electrolyte (SSE) restricts the penetration of polysulfides and exhibits high ionic conductivity at room temperature (RT). Herein, Li 6.5 La 3 Zr 1.5 Nb 0.5 O 12 (LLZNO) ceramic electrolyte using Li 3 PO 4 (LPO) as sintering aids (LLZNO-LPO) is prepared by the rapid sintering method and is applied to construct a shuttle-effect free solid-state Li–S battery . The SSE displays high conductive pure cubic-LLZO phase; during the rapid sintering, LPO melts and junctions the voids between the grains, thus improves Li + conductivity. As a result, the LLZNO-LPO ceramic electrolyte with Li + conductivity of 4.3 × 10 −4 S cm −1 and high critical current density (CCD) of 1.2 mA cm −2 is obtained at RT. The Li–S solid-state battery which utilizes LLZNO-LPO ceramic electrolyte can deliver an initial discharge capacity of 943 mA h·g −1 and 602 mA h·g −1 retention after 60 cycles. In the same time, the initial coulombic efficiency is as high as 99.5%, indicating that the SSE can effectively block the polysulfide shuttle towards the Li anode and fulfill a shuttle-free Li–S battery.
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DOI
高影响因子
JOURNAL OF MATERIALS SCIENCE
·
2023
·Vol. 58
·期 33
·13373-13386
·
IF 4.5
Shi Chonghua,Liu Xinyu,Fu Hang,Wang Jing,Yao Shaowei
As one of the most promising high-capacity anode materials for lithium-ion batteries, Sn-based anode materials have the advantages of high capacity (994 mAh g −1 ) and low price. But the anode material has large volume expansion during the cycle process, resulting in battery capacity attenuation. Therefore, carbon wrapping is used to alleviate this problem. In this work, SnO 2 nanoparticles are coated by electrospinning technology, and microspherical Sn@C composite materials are obtained after further heat treatment. The results show that when the content of SnO 2 nanoparticles is 0.13 g, the obtained Sn@C microsphere electrode material still has a high reversible discharge specific capacity of 616.90 mAh g −1 after 100 cycles at a current density of 100 mA g −1 . When the current density is 500 mA g −1 , the specific capacity is still as high as 558.20 mAh g −1 after 500 cycles, and the Sn@C microsphere electrode material exhibits excellent electrochemical performance. This provides an idea for developing high performance anode materials for lithium-ion batteries.
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高影响因子
ELECTROCHIMICA ACTA
·
2019
·
IF 5.383
Yu Zhou,Wei Shan,Shaofeng Wang,Kwok-ho Lam,Qiang Ru,Fuming Chen,Xianhua Hou
While lithium-ion batteries dominate the field of electronic devices and vehicles, recovery of LiCoO 2 from spent batteries becomes a significant process. Aqueous lithium-air battery and dual-ion battery were blended into a novel electrochemical system as dual-ion lithium-air battery (DLAB) system to recover Li and Co elements from the spent LiCoO 2 (acid solution). In the system, oxygen, LiCoO 2 acid solution and Li 2 Ti 2 (PO 4 ) 3 (LTPO), which has Na + superionic conductor structure and is synthesized by sol-gel method, were used as cathode, dual-ion electrolyte and anode. Relatively low voltage plateaus, stability and insolubility of LTPO make it to be a feasible candidate for this aqueous DLAB. By applying Pt/C as a catalyst for cathode, the full discharged system exhibits a Co ion recovering rate of up to 96.2%. Moreover, this system presents positive discharge plateaus at around 0.47 V and 0.10 V during recovering, demonstrating an output energy density of 43.88 Wh kg −1 . The system shows a green and promising way for the recovery of spent LiCoO 2 battery.
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高影响因子
Journal of Materials Chemistry A
·
2022
·Vol. 10
·期 30
·16152-16162
·
IF 14.511
Xin Dai,Kunyang Zou,Weitao Jing,Peng Xu,Junjie Sun,Shengwu Guo,Qiang Tan,Yongning Liu,Tengfei Zhou,Yuanzhen Chen
The electron-deficient property of the atoms in functional materials endow them with tunable adsorption and catalysis effects on polysulfides, thus improving the performance of lithium–sulfur batteries. In this work, Li2B4O7 nanoparticles, which have abundant electron deficiencies derived from the [BO3] Lewis acid units, were uniformly cladded in the carbon nanofibers (LBO–CNF) and employed as interlayers for Li–S batteries. This functionalized interlayer expressed a high adsorption energy of ∼3.6 eV for polysulfides (e.g., Li2S6 and Li2S4) and effectively suppressed the polysulfides' shuttle behavior, delivering a high reversible capacity of 1242.6 mA h g−1 at 0.2C and good cycling performance with a low fading rate of 0.068% per cycle at 1C, thus effectually inhibiting the phenomenon of self-discharge. Besides, the lithiation reaction kinetics was also effectively enhanced, enhancing the rate performance of the battery to 644 mA h g−1 at 5C. This work provides a new strategy to enhance the electrochemical performance of Li–S batteries by applying the compounds of electronic-deficiency B-species and functionalized carbon.
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高影响因子
ACS Sustainable Chemistry & Engineering
·
2019
·
IF 6.97
Tingshuai Yang,Chaozhu Shu,Ruixin Zheng,Minglu Li,Zhiqian Hou,Peng Hei,Qiang Zhang,Dexin Mei,Jianping Long
Gel polymer electrolytes (GPEs) have received extensive attention due to their excellent nonflammability, leak prevention, and low cost. However, low ionic conductivity at room temperature and poor interfacial stability hinder the further application of GPEs. Here, a novel GPE based on PVDF-HFP/PMMA/SiO2 (PPSE-X, X represents the mass percentage of SiO2 in the GPE) is designed and fabricated. The synthesized PPSE-15 demonstrates an organic–inorganic double complexation structure, in which two kinds of polymer cross-link, leading to the increase of lithium-ion migration amount (tli+) in PPSE-15. Moreover, polar functional group (Si–O) in the nanometer SiO2 promotes the lithium salt dissociation, regulates the Li+ deposition and thus inhibits the production of lithium dendrite. The Li/PPSE-15/Li symmetric cell can run steadily for more than 750 h at a current density of 0.5 mA cm–2. Not only that, the Li–O2 battery assembled with PPSE-15 as an electrolyte can operate over 300 cycles at room temperature. After full charge and discharge for 5 cycles, the capacity retention reaches 48.3%. In addition, the existing PPSE-15 demonstrates excellent safety and flexibility and shows great potential in high-performance Li–O2 batteries.
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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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产品关联
DOI
高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
·
2026
·
IF 9.1
Yingzhen Wu,Enshen Shi,Haojie Song,Lu Li,Chungang Xie,Yongjiang Yu,Yanan Liu,Zhongyi Jiang
Nanofiltration membranes possess great potential in ion separation, meanwhile, the pore and surface properties determining membrane permeance and selectivity, should be designed and regulated. Herein, we utilized reactive ionic liquid (1-aminoethyl-3-methylimidazolium tetrafluoroborate, AMIM-BF 4 ) simultaneously as aqueous phase additive and surface modifier to regulate pore and surface properties for fast and efficient Li + /Mg 2+ separation. AMIM-BF 4 was added in aqueous phase to undergo a competitive interfacial polymerization with polyethyleneimine (PEI), effectively increasing the average pore size of the membrane. Then, amino group in AMIM-BF 4 could react with the unreacted acyl chloride groups to modify membrane surface, increasing its positive charge and hydrophilicity. Accordingly, the membrane possessed high water permeance of 33.3 L m −2 h −1 bar −1 with MgCl 2 rejection rate of 98.9%, and separation factor of 22.7 for the mixed solution with magnesium-to‑lithium ratio (MLR) of 50:1. Meanwhile, during the 168-h continuous cross-flow test, the rejection rate for MgCl 2 remained above 98.1% with stable water permeance. Moreover, through the three-stage nanofiltration experiment, the membrane could reduce the MLR of simulated salt lake brine with 2000 ppm from 50:1 to only 0.02:1, demonstrating its potential for efficient lithium enrichment from complex brine.
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产品关联
DOI
高影响因子
ACS Applied Materials & Interfaces
·
2026
·
IF 7.8
Tao Huang,Xiangzhen Zheng,Ying Pan,Maoxiang Wu
In this article, a multifunctional electrolyte additive, tris(dimethylsiloxy)phenylsilane (TDSPS), is proposed to improve the electrochemical cyclability of 4.8 V lithium-rich oxide (LRO)/Li cells. Electrochemical texts demonstrate that the incorporation of 1 vol % TDSPS improves the capacity retention of LRO/Li cells at 25 °C. Specifically, the cell with the electrolyte containing 1 vol % TDSPS exhibits excellent capacity retention of 81.6% after 200 cycles at 25 °C (0.5 C, 1 C = 250 mAh g–1), while the cell with the baseline electrolyte retains only 34.3%. Systematic theoretical calculations and comprehensive material characterizations elucidate that TDSPS opearates through three primary mechanisms: (1)TDSPS undergoes preferential oxidation on the cathode surface, facilitating the formation of a high-stability protective layer; (2)TDSPS is preferentially reduced on the lithium metal anode surface, effectively inhibiting the growth of lithium dendrites; (3)TDSPS possesses the ability to neutralize and eliminate hazardous hydrofluoric acid (HF), thereby mitigating electrolyte degradation and enhancing cell stability.
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产品关联
DOI
PubMed
高影响因子
Nature Communications
·
2026
·
IF 18.1
Tang Linbin,Lu Zechun,Gao Zongyan,Lou Xuechun,Li Junjian,Wen Yujie,Chen Junchao,Zhu Zhexuan,Luo Shijing,Zhou Lina,Wei Guangfeng,Chen Zuofeng,Zhao Hongying,Li Tong,Peng Luming,Li Fengting,Liu Tao
Achieving a reversible four-electron-per-oxygen-molecule oxygen evolution reaction is an essential yet highly challenging task for nonaqueous lithium hydroxide-based Li | |O 2 batteries, as the kinetically sluggish oxygen evolution reaction tends to entangle with competing parasitic reactions, whose origins and mitigating strategies remain largely elusive. Here we construct a highly reversible lithium hydroxide-based Li | |O 2 battery using iron–cobalt–nickel layered double hydroxide catalysts and tetramethylene sulfone-based electrolytes. Lithium hydroxide decomposition toward oxygen evolution involves key reactive oxygen species of surface-bound hydroxyl and hydroxyl radicals, but no singlet oxygen. These hydroxyl species corrode the electrolyte and carbon support, predominantly accounting for charging irreversibility. While oxidation-resistant solvents and electrical conductors are necessary to reduce hydroxyl-induced side reactions, the synergistic interplay of interfacial water solvation and catalytic surface structures hold the key to steering hydroxyl activity toward the desirable oxygen evolution reaction or by-product formation. This work offers insights into achieving long-life lithium hydroxide-based Li | |O 2 batteries.
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产品关联
DOI
PubMed
高影响因子
Journal of Composites Science
·
2026
·Vol. 10
·期 7
·365
·
IF 4.6
Shenao Liu,Xinglin Jiang,Hao Li,Qi Sun,Haitao Zhang
Fast-charging graphite-based lithium-ion batteries (LIBs) are limited by sluggish Li+desolvation, interfacial charge transfer, and solid-state diffusion in graphite (Gr). Herein, a salt-concentration-regulated lithium bis(trifluoromethanesulfonyl)imide (LiTFSI) in 1,3-dioxolane (DOL) and fluoroethylene carbonate (FEC) electrolyte is developed to construct an anion-involved solvation structure for fast-charging graphite-based LIBs. At an appropriate LiTFSI concentration, TFSI−is incorporated into the primary Li+solvation sheath, forming a contact-ion-pair (CIP)-dominated solvation structure. The optimized electrolyte exhibits a Li+transference number of 0.76 and an exchange current density of 0.28 mA cm−2, indicating accelerated Li+transport and interfacial charge transfer. Furthermore, a more uniform interfacial Li+flux distribution is obtained, contributing to suppressed localized Li growth. As a result, Gr||Li half cells deliver 168 mAh g−1at 10 C (1 C = 370 mAh g−1). LFP||Gr full cells with an LiFePO4(LFP) areal capacity of 4 mAh cm−2deliver 115 mAh g−1at 2 C and retain 69% capacity after 200 cycles. This work highlights moderate salt-concentration regulation in DOL/FEC electrolytes as an effective strategy for fast graphite lithiation without relying on fluorinated ether solvents or localized high-concentration formulations.
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产品关联
DOI
高影响因子
CERAMICS INTERNATIONAL
·
2026
·
IF 6
Hengji He,Dainan Zhang,Youbin Zheng,Shuyang Ma,Cheng Liu,Qinghui Yang,Huaiwu Zhang
This study modified CaWO 4 ceramics through co-doping with Li + and Mo 6+ , and prepared Li x Ca 1-x W 1-x Mo x O 4 (x = 0–0.10) using the solid-state reaction method. The results show that at x = 0.02 and sintered at 850 °C, the material exhibits optimal comprehensive performance: ε r ≈ 9.95, Q × f = 79,683 GHz, and τ f improved from −53 to +5.08 ppm/°C, achieving low-temperature sintering and effective temperature stability control. Mechanism analysis indicates that the enhancement of Mo–O bonds and charge transfer behavior contribute to reducing dielectric loss and improving temperature stability. The material also demonstrates good dielectric performance in the terahertz frequency band. A patch antenna designed based on this material achieves a radiation efficiency of 91.47% at 11.65 GHz, highlighting its potential for application in high-frequency LTCC devices.
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高影响因子
NEW JOURNAL OF CHEMISTRY
·
2026
·
IF 2.6
Guang Li,Yuehao Bai,Xiaoli Duan,Li Sun,Jiasui Jiang,ChangAn Yang,Yong Tao
Lithium-sulfur (Li–S) batteries are regarded as a promising candidate for next-generation energy storage technologies due to their high theoretical capacity and energy density. However, their practical application remains constrained by critical issues such as the polysulfide shuttle effect and cathode volume expansion. To address this, a multi-functional zwitterionic polyethyleneimine-based binder (PEI-LiCF) was synthesized via nucleophilic substitution between branched polyethyleneimine (PEI) and the highly polar lithium 3-chloropropyltrifluoromethylsulfonyl imide (LiCPSI). Structural analysis confirmed the successful incorporation of oppositely charged groups—quaternary ammonium (positive) and sulfonyl imide (negative)—which form a zwitterionic network. The electrostatic interactions within this network enhance Li+ migration and improve its diffusion kinetics. Furthermore, the abundant polar groups in the network exhibit strong polysulfide-anchoring capabilities. With an optimized PEI:LiCPSI mass ratio of 2 : 1 (denoted PEI-LiCF2), Li–S batteries employing this binder exhibit excellent electrochemical performance, even under a high current density of 1 C. They achieved an initial discharge capacity of 815.7 mAh g−1, maintaining a reversible capacity of 511.9 mAh g−1 after 500 cycles, which corresponds to an ultralow decay rate of merely 0.074% per cycle. This multifunctional water-soluble binder therefore represents a promising candidate material for high-performance Li–S batteries.
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高影响因子
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