Energy Storage Materials
·
2022
·
IF 20.831
Jiaqi Zhu,Dan Cai,Jingru Li,Xiuli Wang,Xinhui Xia,Changdong Gu,Jiangping Tu
Optimization of lithium metal anode is a pivotal part in facilitating the evolution of next-generation high energy density solid-state lithium metal batteries (LMBs). However, the practical application of lithium anode in solid-state LMBs is limited by uncontrollable dendrite growth and the poor interfacial contact with solid electrolyte. Herein, a 40 µm thin lithium composite anode based on the AlN-embedded reduced graphene oxide (rGO) scaffold synthesized via one-step molten lithium infusion is proposed. The resulting lithiophilic Li-Al alloy and high ion-conductive Li 3 N in situ constructed the lithium ion diffusing highways inside electrode, enabling a well-oriented Li deposition and effectively inhibiting the dendrite growth. Combined with in-situ polymerization and Li 3 N-modified solid electrolyte interphase (SEI), the composite anodes can prolong the lifespan of symmetric cell to 2100 h at 0.2 mA cm −2 /0.2 mAh cm −2 in carbonate-based solid polymer electrolytes. Moreover, LAG||LiFePO 4 full cells also excelled in cycling capability and rate performance. This modified electrode offers a promising synergistic solution for designing high-performance solid-state LMBs.
研究领域:
材料科学
·
储能
·
电化学
·
固态电池
·
纳米材料
✓ 已验证
DOI
高影响因子
RARE METALS
·
2024
·
IF 9.6
Li Wan-Ying,Dai Yi-Long,Cai Wen-Hao,Lin Si-Han,Guo Lin,Zhang De-Chuang,Li Yuncang,Wen Cuie
Zn-Li alloys are considered promising candidate materials for biodegradable orthopedic implant applications due to their high mechanical performance and good biocompatibility. However, the presence of a large number of second-phase particles in this class of Zn alloys can lead to severe localized degradation due to micro-galvanic corrosion, which is detrimental to the mechanical integrity of the alloys during tissue healing in the human body. In this study, we report ultrahigh strength, uniform corrosion, good cytocompatibility, and effective antibacterial ability in Zn- x Li ( x = 0.3, 0.5, 0.7; wt%) alloys achieved through supersaturated solid solution treatment (SSST) at 375 °C under ultrahigh pressure of 3 GPa. A high concentration of β-LiZn 4 phases coexisted with the -Zn matrix in the as-cast Zn- x Li alloys, whereas almost all the Li dissolved into the -Zn matrix of SSST counterparts. The yield strength was 437 MPa for SSST Zn-0.3Li, 592 MPa for SSST Zn-0.5Li, and 686 MPa for SSST Zn-0.7Li. The SSST Zn-Li alloys showed uniform degradation with remarkably reduced degradation rates compared to their as-cast counterparts. The 25% concentration extracts of the Zn- x Li alloys demonstrated no cytotoxicity toward MC3T3-E1 cells, and the alloys exhibited effective antibacterial ability against methicillin-resistant staphylococcus aureus.
研究领域:
材料科学
·
生物医学工程
·
腐蚀科学
·
骨科
✓ 已验证
DOI
高影响因子
LANGMUIR
·
2025
·
IF 3.9
Yu Tang,Shengde Dong,Junjie Shan,Ping Li,Ying Cheng,Leya Guo,Yin Xiang,Yanxia Sun,Qi Xu,Chunxi Hai,Haijiao Xie,Yuan Zhou
The burgeoning energy sector exhibits a demand for lithium resources. Notably, salt lakes, rich in lithium, challenge due to the high Mg2+/Li+ ratios encountered. Nanofiltration, characterized by its simplicity, environmental sustainability, holds promising prospects for Mg2+/Li+ separation in salt lakes. Density functional theory (DFT) simulations reveal that sodium dodecyl sulfate (SDS) surfactant layers significantly lower the energy barrier for polyethylenimine (PEI) transfer, which fundamentally enhances the interfacial polymerization kinetics. This study activates polysulfone (PSF) ultrafiltration (UF) membrane surfaces with SDS surfactants to form a negatively charged surface-active interlayers, the hydrophilicity of the membrane surface was increased and then accelerating polymerization at the PEI/TMC interface. Under optimized conditions, the membranes achieve 98.6% MgCl2 retention and ultrahigh selectivity (S(Li/Mg) = 118.75) with a Mg2+/Li+ ratio of 50:1, showing sustained performance in a 44 h test. This work provides efficient separation method for high-performance lithium extraction from salt lake brines.
研究领域:
膜科学
·
化学工程
·
材料科学
·
分离技术
·
计算化学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Advanced Fiber Materials
·
2022
·Vol. 4
·期 3
·487-502
·
IF 12.958
Zhou Lei,Tufail Muhammad Khurram,Liao Yaozu,Ahmad Niaz,Yu Peiwen,Song Tinglu,Chen Renjie,Yang Wen
All-solid-state Li-SeS 2 batteries (ASSLSs) are more attractive than traditional liquid Li-ion batteries due to superior thermal stability and higher energy density. However, various factors limit the practical application of all-solid-state Li-SeS 2 batteries, such as the low ionic conductivity of the solid-state electrolyte and the poor kinetic property of the cathode composite, resulting in unsatisfactory rate capability. Here, we employed a traditional ball milling method to design a Li 7 P 2.9 W 0.05 S 10.85 glass–ceramic electrolyte with high conductivity of 2.0 mS cm − 1 at room temperature. In order to improve the kinetic property, an interpenetrating network strategy is proposed for rational cathode composite design. Significantly, the disordered cathode composite with an interpenetrating network could promote electronic and ionic conduction and intimate contacts between the electrolyte–electrode particles. Moreover, the tortuosity factor of the carrier transport channel is considerably reduced in electrode architectures, leading to superior kinetic performance. Thus, assembled ASSLS exhibited higher capacity and better rate capability than its counterpart. This work demonstrates that an interpenetrating network is essential for improving carrier transport in cathode composite for high rate all-solid-state Li-SeS 2 batteries. Graphical abstract
研究领域:
材料科学
·
电化学
·
电池技术
·
固态电解质
✓ 已验证
DOI
高影响因子
JOURNAL OF RARE EARTHS
·
2023
·
IF 4.9
Wei Zhang,Changjian Wang,Xusheng Qiao,Xianping Fan
The rapid development of phosphor-converted white light emitting diodes (pc-WLEDs) requires new red phosphors with efficient and thermally stable luminescence for high-quality warm-white lighting. However, it is still a challenge to discover red phosphors with facile synthesis, high internal quantum efficiency (IQE), excellent thermal stability and high color purity. Herein, a novel red-emitting Eu 3+ activated barium dialuminum digermanate (BaAl 2 Ge 2 O 8 , BAGO) phosphor showing strong red emission at 610 nm was prepared. The IQE is improved from 32.91% to 78.84% by employing a charge compensation strategy. The lithium-ion co-doped BAGO:Eu 3+ phosphor exhibits a nearly twofold increase in integral photoluminescence (PL) intensity and the high color purity reaches 94.17%. Impressively, the PL intensity of the BAGO:Eu 3+ ,Li + phosphor drops by only 2.6% at 150 °C of that at room temperature. Finally, the pc-WLED using the red BAGO:Eu 3+ ,Li + phosphor exhibits white light with the chromaticity coordinate of (0.3515, 0.3495), a high color-rendering index of 92 and a low correlated color temperature of 4746 K. All these results manifest that BAGO:Eu 3+ ,Li + phosphor is a suitable red phosphor for near-ultraviolet (NUV) chip-based pc-WLEDs.
研究领域:
材料科学
·
光电
·
发光二极管
✓ 已验证
DOI
高影响因子
ADVANCED FUNCTIONAL MATERIALS
·
2025
·Vol. 35
·期 34
·2501573
·
IF 19
Pengfei Ren,Nicholas S. Grundish,Sidong Zhang,Lihai Zhou,Ruiping Liu,Nan Wu,Yutao Li
The stability of the lithium-metal/solid electrolyte interface remains a critical challenge in the development of all-solid-state lithium-metal batteries (ASSLMBs), as it directly influences their cycling performance, rate capability, and safety. Here, a thin, flexible, and lithium-stable sulfide electrolyte membrane is presented with high ionic conductivity (3.25 × 10 −3 S cm −1 ) and low electronic conductivity (1.45 × 10 −9 S cm −1 ) at room temperature, prepared with an AlCl 3 coating in a low-cost wet process. The in situ formation of a lithiophilic Li-Al alloy and a lithiophobic LiCl layer at the interface creates a stable dual-layer structure, effectively suppressing Li-dendrite growth and enhancing Li-transport across the interface. Symmetric Li/Li cells with this coated membrane exhibit exceptional cycling stability, operating for over 10000 h at 0.5 mA cm −2 . ASSLMBs assembled with a LiNi 0.8 Co 0.1 Mn 0.1 O 2 cathode and a metallic lithium anode exhibit excellent cycling performance, highlighting the potential of this coating strategy to stabilize the Li/solid electrolyte interface and expedite the commercialization of ASSLBs.
研究领域:
材料科学
·
电化学
·
储能
·
电池技术
✓ 已验证
产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2023
·
IF 15.1
Shuohan Wang,Jian Li,Tengfei Li,Weiguo Huang,Lihua Wang,Shengdong Tao
The chasing for all-solid-state lithium-ion batteries (ASSLIBs) is based on the need for safer and higher energy density batteries. In this regard, solid polymer electrolytes (SPEs) are well-renowned for their processability and electrochemical stability, yet slimmer and more flexible SPE with higher ionic conductivity is still desired. Herein, an ultrathin (35 µm), rigidity-enhancing co-blending SPEs design using electrospinning was proposed, blending bio-polyamide with a N -substituted pyrrolidone ring (IBD) with polyethylene oxide/lithium bis(trifluoromethanesulfonyl)imide (PEO/LiTFSI). IBD is confirmed to possess the dominant Li + affinity. Then IBD with flexible chain segments of PEO, triggers a concerted ion-transport mechanism synergistically, in which IBD is responsible for the processes of enhanced ion-pair dissociation resulting in dynamic association between the mobile cations and the long-chain molecules that constitute the SPE. Meanwhile, it could broaden the ion transport channel in some extent. The ionic conductivity of the SPE is up to 4.26 × 10 −4 S cm −1 at 50 ℃. Furthermore, the high strength modulus, low crystallinity, and ultra-thin characteristic of IBD-PEO/LiTFSI power-assisted the ASSLIBs of LiFePO 4 //Li to achieve extraordinary cycle performance (80.5 % capacity retention after 580 cycles at C/2 rate) and the average coulomb efficiency exceeds 99.5 % at 50 ℃. Moreover, it has the ability to withstand folding and bending conditions.
研究领域:
材料科学
·
电化学
·
电池技术
✓ 已验证
产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2022
·
IF 16.744
Hongwei Li,Ying Wang,Tingyu Li,Xiang-Kui Ren,Jixiao Wang,Zhi Wang,Song Zhao
Lithium extraction from salt lake brines with high Mg 2+ /Li + ratios represents an effective alternative for tackling the scarcity of lithium resources. In this work, nanofiltration (NF) membrane with exclusive Li + transport channels was designed and prepared through facile interfacial polymerization, in which polyethyleneimine (PEI) bonded with 15-crown-5 ether (15C5) through hydrogen interaction was selected as the aqueous monomer ( [email protected] ) and reacted with trimesoyl chloride (TMC). The channels generated by 15C5 molecules could facilitate Li + transport owing to their affinity to Li + . Molecular dynamics simulation was conducted to further confirm the Li + transport through [email protected] membrane with exclusive Li + transport channels provided by 15C5. The [email protected] membrane displayed a permeability of 8.0 L·m −2 ·h −1 ·bar −1 and stable separation factor ( S Li,Mg ) of 14, which could reduce Mg 2+ /Li + mass ratio of a simulated brine from 20 to 1.7. Furthermore, a three-stage NF process was designed and performed using a [email protected] membrane to separate a simulated salt lake brine, containing multiple ions and Mg 2+ /Li + mass ratio of 50. After the treatment, the ultimate permeate solution of the third stage contained 24 ppm of Li + and 2.7 ppm of Mg 2+ with Mg 2+ /Li + mass ratio of 0.1. Therefore, this process could be applied to obtain Li 2 CO 3 products with high purity. Our investigation highlights the highly efficient Mg 2+ /Li + separation through NF membranes with exclusive Li + transport channels, potentially applicable to lithium extraction from salt lake brines with high Mg 2+ /Li + mass ratios.
研究领域:
材料科学
·
环境工程
·
化学工程
·
膜技术
✓ 已验证
DOI
高影响因子
Sustainable Energy & Fuels
·
2022
·Vol. 6
·期 15
·3658-3668
·
IF 6.813
Xirui Kong,Yichen Kong,Xiaobin Liao,Sheng Liu,Yan Zhao
Lithium–sulfur batteries (LSB) are regarded as one of the next-generation energy storage systems with a high energy density. However, the shuttle effect of lithium polysulfides (LiPSs) and irreversible consumption of the Li anode prevent the practical application of Li–S batteries. In this work, a mixed tetrahydrofuran (THF) and dipropyl ether (DPE) based electrolyte has been optimized for Li–S batteries. Due to the common-ion effect, the LiPS solubility has been significantly inhibited when the sulfur cathode is operating in a concentrated electrolyte containing an optimized solvent system with weak dissolving power. And no self-discharge effect occurred in the cells with these electrolytes during a 10 day storage. Besides, the coulombic efficiency (CE) for Li deposition/stripping has been improved by optimizing the ratio of dual lithium salts. Impressively, Li‖Cu half-cells can run stably for more than 500 cycles with a high CE (>99.3%). For these reasons, a Li–SeSPAN cell with a L1L2TE-1382 electrolyte demonstrates an excellent capacity retention (>94% after 500 cycles) with an ultrathin (50 μm) Li metal anode. With a good compatibility of the optimized electrolyte for both the Li metal anode and sulfur cathode, this work provides a new design strategy for the electrolyte for lithium–sulfur batteries.
研究领域:
电化学
·
储能技术
·
电池技术
·
材料科学
✓ 已验证
产品关联
DOI
高影响因子
ELECTROCHIMICA ACTA
·
2021
·
IF 6.901
Ting Liu,Li Li,Tianhao Yao,Yanni Li,Lei Zhu,Fang Li,Xiaogang Han,Yonghong Cheng,Hongkang Wang
To explore advanced anode materials with superior Li + /Na + /K + storage performances for alkaline ion batteries (AIBs), a hybrid of amorphous vanadium oxide uniformly embedded into the highly defective carbon nanofibers (denoted as VO x @CNFs) was fabricated via a facile electrospinning method followed by proper heat treatment in this work. The integrated structure synergistically combines the advantages of the amorphous VO x and the defective carbon matrices, which can not only bring abundant active sites for ion storage and multi-channels for ion diffusion, but also well accommodate the structural change induced electrode pulverization . When evaluated as anode materials for AIBs, the optimized VO x @CNFs demonstrate excellent alkaline ion storage performances with high-specific capacities, long-cycling life and high-rate capabilities, delivering a Na + storage capacity of 260 mAh g −1 at 1.0 A g −1 after 1000 cycles, a Li + storage capacity of 556 mAh g −1 at 0.5 A g −1 after 500 cycles, and a K + storage capacity of 198 mAh g −1 at 0.5 A g −1 after 400 cycles.
研究领域:
材料科学
·
电化学
·
纳米技术
·
能量存储
✓ 已验证
DOI
高影响因子
Journal of Energy Storage
·
2024
·
IF 8.9
Youlan Zou,Yanhong He,Huiyao Li,Shiyan Deng,Wenhao Tang,Shuang Deng
In order to solve the problems of low ionic conductivity, low lithium-ion transference number and weak mechanical strength of PEO solid polymer electrolytes (SPEs), this paper proposes to prepare composite cross-linked network polymer electrolytes (PEO-AAEM) through UV crosslinked polymerization of allyl acetoacetate (AAEM) and N- N -methylene diacrylamide (MBA) within the PEO SPEs. The amide group within the cross-linked network facilitates the dissociation of Li + , while the carbonyl group serves as a conduit for Li + transport. The PEO-AAEM SPEs exhibit the ionic conductivity of 5.4×10 −4 S cm −1 , with a lithium-ion transference number of 0.54 at 60 °C. The assembled Li//Li battery with proper AAEM content can be stably cycled for 2000 h at 0.2 mA cm −2 current, and LiFePO 4 //Li battery maintains a reversible capacity of 100 mA h g −1 after 500 cycles at 0.2C. This work offers a viable pathway for developing SPEs with improved electrochemical performance for all solid-state lithium metal batteries (ASSLMBs).
研究领域:
材料科学
·
电化学
·
电池技术
✓ 已验证
产品关联
DOI
高影响因子
ACS Applied Energy Materials
·
2024
·
IF 5.4
Peng Zhang,Jian-Hua Cao,Wei-Hua Liang,Yue Li,Ya-Kun Wang,Da-Yong Wu
Solid electrolytes are generated through in situ polymerization within batteries, which is one of the most promising methods for achieving solid-state lithium metal batteries with good interfacial contact, high safety, and high performance. Poly-1,3-dioxolane (PDOL), although a good in situ solidified electrolyte for lithium stability, has poor applicability in high-voltage battery systems. In order to improve the interfacial compatibility between PDOL and both the cathode and anode of high-voltage batteries. we herein design a sacrificial additive, diethyl (2,2,2-trifluoroethyl) phosphite (DETFPi), with a lower lowest unoccupied molecular orbital (LUMO) and higher highest occupied molecular orbital (HOMO) energy, through methods of calculation. After being loaded into the battery, DETFPi-DOL is in situ polymerized to form DETFPi-PDOL electrolyte. The Li||DETFPi-PDOL||Li symmetric battery operates stably for 2000 h at 0.5 mA cm–2, with an overpotential of only 16 mV. XPS analysis shows that an SEI layer with high LiF content is formed on the surface of the lithium anode after cycling, which promotes the uniform deposition of lithium ions and inhibits the growth of lithium dendrites. After 300 cycles, the NCM811||DETFPi-PDOL||Li battery exhibits a remaining capacity of 154.8 mAh g–1 (81%) within the 3.0–4.35 V range, meanwhile demonstrating excellent rate performance. Moreover, a uniform CEI layer containing pentavalent phosphorus and low LiF content is formed on the surface of the cathode after battery cycling. Finally, due to the improvement of the cathode interface, the increase of interfacial impedance of the battery after 300 cycles is reduced to half that of the PDOL battery.
研究领域:
材料科学
·
电化学
·
电池技术
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）