Science Bulletin
·
2023
·
IF 18.9
Chunlin Xie,Shengfang Liu,Hao Wu,Qi Zhang,Chao Hu,Zefang Yang,Huanhuan Li,Yougen Tang,Haiyan Wang
The development of electrolytes with a wide temperature range, no dendrite growth and corrosion resistance is essential for the practical application of aqueous zinc metal batteries . Herein, γ-valerolactone is developed as the co-solvent to extend the operating temperature range of the aqueous electrolyte and stabilize the zinc metal anode interface. This weak solvent acts as a strong hydrogen bonding ligand and “diluent” to break the hydrogen bonds between free water molecules, thus enhancing the temperature tolerance and chemical stability of the electrolyte. The γ-valerolactone can also be adsorbed on the anode surface to achieve a dendrite-free zinc deposition behavior by promoting zinc nucleation and regulating zinc growth texture. The optimized electrolyte enables the symmetric cell to deliver a cycle/rest life of 2160 h and operate stably over a wide temperature range of −50 to 80 °C. The corresponding Zn||AC and Zn||PANI cells exhibit capacity retention of 92.5% and 85% after 8100 and 1600 cycles, respectively. This mechanism of weak solvent-regulated hydrogen bonding and solvent sheath provides new insights into the design of advanced aqueous electrolytes.
研究领域:
电化学
·
材料科学
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产品关联
DOI
PubMed
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2021
·
IF 13.273
Wei Zeng,Xiaojia Zhang,Chunyang Yang,Chengzhi Zhang,Huimin Shi,Jin Hu,Yanli Zhao,Wenjing Zhang,Guanhua Zhang,Huigao Duan
Alkali metal anodes are promising anodes for constructing novel battery systems with high energy density. Nevertheless, limited nucleation sites and nonuniform local electric field caused dendrites growth and unlimited volume expansion hindered their practical implementation during electrochemical plating/stripping. Herein, a 3D N-doped carbon nanofiber skeleton wrapped with Ni nanoparticles encapsulated carbon nanotubes (CNTs-Ni@NCFs) is prepared by hydrothermal process and followed catalytic reaction under ethanol atmosphere to construct a superior Li/Na-philic host with stable chemical properties. The 3D NCF networks serve as a primary framework, providing sufficient voids for alkali metal deposition and rapid electron and ion transport. The Li/Na-philic Ni nanoparticles and catalyzed CNTs on CFs provide evenly distributed nucleation sites and uniform local electric field, leading to dendrite-free Li deposition, which is confirmed by theoretical calculations. Because of the guided deposition behavior and bare volume change, the CNTs-Ni@NCFs anode delivers an extremely low nucleation overpotential in the initial deposition and a superior plating/stripping voltage hysteresis under a high current density of 30 mA cm −2 for 300 cycles. The CNTs-Ni@NCFs-Li full cell with LiFePO 4 cathodes demonstrates 94.2% capacity retention after 200 cycles under 2 C. When coupled with Na 3 V 2 (PO 4 ) 3 cathode, the CNTs-Ni@NCFs-Na cell shows a good suitability in full cell. This work shed new light on fabricating novel stable alkali metal anodes, which may also pave the way toward to other practical applications with high energy densities, such as in Li-air and Li-S batteries, etc .
研究领域:
材料科学
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电化学
·
能源存储
✓ 已验证
产品关联
DOI
高影响因子
ADVANCED FUNCTIONAL MATERIALS
·
2023
·Vol. 33
·期 34
·2301586
·
IF 19
Wenxuan Ren,Kerun Zhu,Wei Zhang,Haichen Liang,Li Xu,Lipeng Wang,Chaochao Yang,Yi Yang,Pengfei Zhang,Fei Wang,Yonggang Wang,Wei Li
Concentration polarization-induced lithium dendrites seriously impede the practical application of high-energy-density lithium metal batteries. Porous materials that aim to inhibit lithium dendrites are extensively explored. However, their effects are still limited by the intrinsic features of the pores, especially channel geometry and surface properties. Herein, a separator modification strategy of blocking “dendritic deposition” via “dendritic channels” is proposed. A porous shield-like film is formed on the polypropylene separator through the close packing of ultra-small (≈100 nm) silica nanospheres with unique dendritic mesopores (DMS). Besides the hierarchical pores homogenizing the ion flux, the DMS film also provides abundant Si(OH) x groups, preferentially adsorbing the TFSI − in the electrolyte and accelerating the transport of Li + . Most notably, the dendritic mesochannels with high complexity can diversify the growth directions of lithium and contribute to a more substantial homogenizing process of Li + . Consequently, a dendrite-free deposition with 1000 stable cycles in Li|Li symmetric cells even at 10 mA cm −2 is achieved. This study provides a scalable approach for the fabrication of mesoporous separators and offers a fresh perspective on the future design of advanced separators utilized for dendrite suppression.
研究领域:
材料科学
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电化学
✓ 已验证
产品关联
DOI
高影响因子
ACS Applied Energy Materials
·
2021
·
IF 6.024
Jingjing Zhou,Jiahang Chen,Jun Yang,Yanna Nuli,Jiulin Wang
Rechargeable Li-metal anodes have received abundant attention for high-energy-density batteries. A solid electrolyte interphase (SEI) plays a significant role in regulating the Li+ deposition/stripping process. Aimed to solve detrimental Li deposition with a dendritic and mossy morphology, herein, dendrite-free columnar Li deposition in micron size is constructed via creatively adopting a LiNO3-based electrolyte even at a high current density (2 mA cm–2) and areal capacity (4 mAh cm–2). N-rich inorganic SEI (Li3N and LiNxOy) with superior Li+ conductivity is formed on Li deposition, which enables remarkable reversibility and high average Coulombic efficiency (CE) even over 240 cycles. A Li∥LiFePO4 cell delivers excellent cycling stability over 700 cycles with a capacity fading rate of merely 0.022% per cycle. This work provides a way to regulating columnar Li deposition via N-rich SEI coordination and developing electrolyte formulations for secondary Li-metal batteries.
研究领域:
材料科学
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电化学
✓ 已验证
产品关联
DOI
高影响因子
Microstructures
·
2024
·Vol. 4
·期 4
·N
·
IF 0
Zhendong Li,George Z. Chen,Di Hu,Xiayin Yao,Zhe Peng
Dendritic lithium (Li) deposition is a critical issue hindering the development of next-generation high-energy-density Li metal batteries (LMBs). Confining Li deposition within a three-dimensional host is a general strategy to suppress the volume expansion of the Li electrode. However, precise control of continuous Li growth in the pore space of the host is rarely investigated, which is a crucial issue to enable a high utilization ratio of the hosted Li for practical LMBs. Herein, a novel hierarchical host structure possessing a multifunctional secondary porous structure to regulate the continuous Li growth with high uniformity and reversibility is proposed. The secondary porous structure consisting of carbon nanotubes, nickel and Li2O-enriched solid electrolyte interphase is in-situ generated via lithiation reaction of a modified nickel foam scaffold, exhibiting high lithiophilicity, fast Li+ transportation and charge transfer. The LMB utilizing Li metal electrodes hosted by this rational structure achieved a stable cycling over 300 cycles with a practical LiFePO4 positive electrode (~2.5 mAh cm-2) at 0.5C/0.5C in the voltage window of 2.5-4.4 V. This work provides a novel approach to designing the host microstructure for constructing more stable Li metal electrode in practical LMBs.
研究领域:
材料科学
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电化学
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能源存储
✓ 已验证
DOI
Matter
·
2025
·
IF 17.5
Li Zeng,Dan Luo,Weishan Tang,Dayue Du,Hanna He,Chuhong Zhang
Achieving a high depth of discharge (DOD) in dendrite-free Zn anodes is essential for enhancing the energy density and cycling lifespan of zinc-ion batteries (ZIBs). However, conventional three-dimensional (3D) anodes featuring thick and disordered pore structures suffer from gradient and tortuous ion diffusion pathways, leading to mismatched electron/ionic transfer kinetics, which limit their DODs to usually lower than 40%. Herein, a low-tortuosity, N-doped 3D Zn anode is deftly crafted by 3D printing. The vertically aligned pore architecture significantly reduces electrode tortuosity, enabling rapid ion transport with shortened migration pathways. Meanwhile, the N-doped zincophilic surface substantially reduces the deposition energy barrier for uniform and compact Zn deposition even under high DODs. The resulting symmetrical cells exhibit dendrite-free cycling for 720 h at 1 mA cm −2 and 1 mAh cm −2 while sustaining stable plating/stripping processes at a high DOD of 61.7%. This work offers fundamental insights into the anode design philosophy for long-lasting and energy-dense ZIBs.
研究领域:
电化学储能
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材料科学
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能源化学
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先进制造
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纳米材料
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电池技术
✓ 已验证
产品关联
DOI
高影响因子
Journal of Materials Chemistry C
·
2025
·
IF 5.1
Jingyu Du,Daohai Zhang,Yuhuan Xu,Xiao Zhan,Shuhao Qin
With the increasing global energy demand, water-based zinc ion batteries have received widespread attention. However, the growth of zinc dendrites and the occurrence of side reactions on the surface of zinc electrodes can affect the capacity of zinc ion batteries, hindering their practical application. This study reports a multifunctional dendrite-free gel electrolyte prepared by introducing carboxyl modified nanocellulose (C-CNFs) into a polyvinyl alcohol (PVA) based gel electrolyte. At the same time, we also add the antifreeze agent dimethyl sulfoxide (DMSO) to it, which greatly improves the low-temperature performance of gel electrolytes. The rich functional groups on the surface of C-CNFs can effectively adjust the continuous movement of PVA and improve the mechanical strength of the gel electrolyte, and at the same time, they can effectively absorb zinc ions, enable uniform distribution of zinc ions in the electrolyte, reduce the interface concentration gradient, and reduce the occurrence of side reactions, so that the zinc ion deposition is more uniform, and dendrite free deposition is achieved. The polyaniline zinc ion battery assembled with this electrolyte can stably cycle over 3000 times at room temperature, with a capacity retention rate of 83.23%. At −20 °C, the capacity retention rate reaches 60% after 1200 cycles.
研究领域:
电化学储能
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材料科学
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高分子化学
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纳米复合材料
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电池技术
✓ 已验证
产品关联
DOI
高影响因子
Small
·
2018
·Vol. 14
·期 37
·1802244
·
IF 9.598
Jingchao Chai,Bingbing Chen,Fang Xian,Peng Wang,Huiping Du,Jianjun Zhang,Zhihong Liu,Huanrui Zhang,Shanmu Dong,Xinhong Zhou,Guanglei Cui
Notorious lithium dendrite causes severe capacity fade and harsh safety issues of lithium metal batteries, which hinder the practical applications of lithium metal electrodes in higher energy rechargeable batteries. Here, a kind of 3D-cross-linked composite network is successfully employed as a flexible-rigid coupling protective layer on a lithium metal electrode. During the plating/stripping process, the composite protective layer would enable uniform distribution of lithium ions in the adjacent regions of the lithium electrode, resulting in a dendrite-free deposition at a current density of 2 mA cm −2 . The LiNi 0.5 Mn 1.5 O 4 -based lithium metal battery presents an excellent cycling stability at a voltage range of 3.5–5.0 V with the induction of 3D-cross-linked composite protective layer. From an industrial field application of view, thin lithium metal electrodes (40 µm, with 4 times excess lithium) can be used in LiNi 0.5 Mn 1.5 O 4 (with industrially significant loading of 18 mg cm −2 and 2.6 mAh cm −2 )-based lithium metal batteries, which reveals a promising opportunity for practical applicability in high energy lithium metal batteries.
研究领域:
材料科学
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电化学
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能源存储
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Nano Energy
·
2021
·
IF 17.881
Yaoyao Li,Yuanpeng Liu,Lanxin Xue,Wei Chen,Tianyu Lei,Anjun Hu,Jianwen Huang,Xuepeng Wang,Xianfu Wang,Bo Chen,Yin Hu,Chengtao Yang,Jie Xiong
Lithium metal batteries (LMBs) have great potential for next-generation rechargeable batteries due to the high theoretical capacity and ideal compatibility coupled with diverse cathode materials . However, the random Li deposition associated with the large local space charge caused by the anion depletion near the surface of anode, as well as the insufficient reduction of Li + related to the suppressed Li + solvation process induced by the electrostatic force between anion and cation hinder the development of high-energy-density LMBs. Herein, as evidenced theoretically and experimentally, we simultaneously eliminate the anion depletion region and promote the lithium salt dissociation by employing ZIF-67 with unsaturated metal sites as anionphilic additive to regulate anion distribution and weaken its bond with Li + . As a result, the short-circuit hazard is remitted in symmetrical cell with modified electrolyte at 3 mA cm −2 under capacity of 3 mAh cm −2 for more than 2000 h. As employed for the lithium-sulfur battery with high sulfur loading of 4.5 mg cm −2 , the modulated electrolyte enables the battery delivering an initial capacity of 713 mAh g −1 with decay rate of 0.05% per cycle over 100 cycles at 3 mA cm −2 . This work demonstrates an efficient and scalable strategy for constructing dendrite-free LMBs via eliminating the anion depletion region and facilitating the Li + solvation process.
研究领域:
电化学
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能源材料
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电池技术
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界面化学
·
材料科学
✓ 已验证
DOI
高影响因子
ADVANCED MATERIALS
·
2024
·Vol. 36
·期 30
·2404815
·
IF 27.4
Yi-Hong Tan,Zhu Liu,Jian-Hui Zheng,Zhi-Jin Ju,Xiao-Ya He,Wei Hao,Ye-Chao Wu,Wen-Shan Xu,Hao-Jie Zhang,Guo-Qing Li,Li-Sha Zhou,Fei Zhou,Xinyong Tao,Hong-Bin Yao,Zheng Liang
The solid electrolyte interphase (SEI) with lithium fluoride (LiF) is critical to the performance of lithium metal batteries (LMBs) due to its high stability and mechanical properties. However, the low Li ion conductivity of LiF impedes the rapid diffusion of Li ions in the SEI, which leads to localized Li ion oversaturation dendritic deposition and hinders the practical applications of LMBs at high-current regions (>3 C). To address this issue, a fluorophosphated SEI rich with fast ion-diffusing inorganic grain boundaries (LiF/Li 3 P) is introduced. By utilizing a sol electrolyte that contains highly dispersed porous LiF nanoparticles modified with phosphorus-containing functional groups, a fluorophosphated SEI is constructed and the presence of electrochemically active Li within these fast ion-diffusing grain boundaries (GBs-Li) that are non-nucleated is demonstrated, ensuring the stability of the Li || NCM811 cell for over 1000 cycles at fast-charging rates of 5 C (11 mA cm −2 ). Additionally, a practical, long cycling, and intrinsically safe LMB pouch cell with high energy density (400 Wh kg −1 ) is fabricated. The work reveals how SEI components and structure design can enable fast-charging LMBs.
研究领域:
材料科学
·
电化学
·
储能
·
电池技术
✓ 已验证
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2025
·
IF 13.2
Menghao Yang,Beibei Du,Yongdan Cao,Yuan Xue,Peijie Xu,Zhao Cao
Rechargeable aqueous zinc-ion batteries (AZIBs) face critical challenges due to the formation of severe Zn dendrites and parasitic reactions at unstable interfaces. Here, we develop an aminosilanized halloysite nanotube (AHNT)-based coating that employs a distinctive “nanoconfinement-capture” strategy: the tubular framework spatially confines Zn 2+ diffusion, while surface amino groups chemically capture the ions, working synergistically to enable dendrite-free Zn deposition. This approach delivers outstanding stability (2600 h in Zn||Zn cells with a Coulombic efficiency of 99.74 %) and demonstrates practical full-cell performance (253 mA h g −1 at 3C with 71.86 % capacity retention over 1200 cycles). This strategy substantially broadens the functional scope of conventional protective coatings, offering novel design principles for the application of clay minerals in Zn anode engineering and presenting significant implications for the advancement of aqueous zinc battery technology.
研究领域:
材料科学
·
储能
·
电化学
·
纳米材料
·
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）