Journal of Materials Chemistry A
·
2019
·Vol. 7
·期 13
·7516-7525
·
IF 10.733
Guodong Zou,Bingcheng Ge,Hao Zhang,Qingrui Zhang,Carlos Fernandez,Wen Li,Jianyu Huang,Qiuming Peng
Increasing environmental problems and energy challenges have created an urgent demand for the development of green and efficient energy-storage systems. The search for new materials that could improve the performance of Li-ion batteries (LIBs) is one of today's most challenging tasks. Herein, a stable symmetric LIB based on the bipolar material-MXene/Na0.55Mn1.4Ti0.6O4 was developed. This bipolar hybrid material showed a typical MXene-type layered structure with high conductivity, containing two electrochemically active redox couples, namely, Mn4+/Mn3+ (3.06 V) and Mn2+/Mn (0.25 V). This MXene/Na0.55Mn2O4-based symmetric full cell exhibited the highest energy density of 393.4 W h kg−1 among all symmetric full cells reported so far, wherein it is bestowed with a high average voltage of 2.81 V and a reversible capacity of 140 mA h g−1 at a current density of 100 mA g−1. In addition, it offers a capacity retention of 79.4% after 200 cycles at a current density of 500 mA g−1. This symmetric lithium ion full battery will stimulate further research on new LIBs using the same active materials with improved safety, lower costs and a long life-span.
研究领域:
材料科学
·
能源存储技术
✓ 已验证
DOI
高影响因子
ELECTROCHIMICA ACTA
·
2017
·
IF 4.798
Ning Wang,Naiqin Zhao,Chunsheng Shi,Enzuo Liu,Chunnian He,Fang He,Liying Ma
Lithium-sulfur (Li-S) batteries have been recognized as one of the promising next-generation energy storage devices owing to their high energy density, low cost and eco-friendliness. As for cathode’s performance, the main challenges for developing highly-efficient and long-life Li-S batteries are to retard the polysulfides diffusion into electrolyte and the reaction with metallic lithium (Li). Especially, the safety issues, derived from metallic Li in anode, must be overcome. Herein, we fabricated lithium sulfide@porous carbon composites (Li 2 S@PC) by an in-situ reaction between the lithium sulfate (Li 2 SO 4 ) and the pyrolytic carbon from glucose. The nanosized Li 2 S particles were uniformly distributed in the carbon matrix, which not only significantly improve electronic conductivity of the electrode but also effectively trap the dissolved polysulfides. Furthermore, on the basis of the graphite’s electrochemical features in ether-based electrolyte, we assembled graphite-Li 2 S@PC full cells using the obtained Li 2 S@PC composites as the cathode, graphite as the anode and the DOL/DME with LiNO 3 additive as the electrolyte. A unique strategy was proposed to activate the full-cells in descending order using constant voltage and current to charge the cut-off voltage. This Li-S full cell exhibits stable cycling performance at 0.5 C over 100 cycles. Because graphite-Li 2 S batteries are suitable to the lithium-ion batteries industry, our preliminary results here will shed a new light on the cell design and industrial production.
研究领域:
材料科学
·
电化学
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能源存储
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF ELECTRONIC MATERIALS
·
2020
·Vol. 49
·期 4
·2529-2538
·
IF 1.774
Zhang Pengfei,Liu Yanxia,Chai Fengtao,Fan Yameng,Hou Aolin
Li 4 Ti 5 O 12 (LTO) composites modified with carbon nanotubes (CNTs) and carbon coating (LTO@C/CNTs) were synthesized by a simple solid-state reaction. The carbon-coated layers reduce the growth of the primary particles, inhibit interface side reactions and increase electron conductivity, so CNTs-modified LTO can form a conductive network and improve the diffusion path of lithium ions. The LTO@C/CNTs composites show a high-rate capability (150 mAh g −1 at 10 C, 145 mAh g −1 at 20 C) with good cycling performance (90.1% and 82.8% capacity retentions after 1000 cycles at 10 C and 20 C, respectively). In addition, superior electrochemical performance is also demonstrated in a full cell with a LiNi 0.8 Co 0.1 Mn 0.1 O 2 (NCM811) cathode and LTO@C/CNTs anode (97.1% capacity retentions after 200 cycles at 1 C). The carbon coating and CNTs-modified in LTO can reduce the polarization of potential difference and charge-transfer resistance, improve the diffusion coefficient of lithium ions, and lead to high rate performance and cycle stability.
研究领域:
材料科学
·
电化学
✓ 已验证
产品关联
DOI
高影响因子
Nanomaterials
·
2022
·Vol. 12
·期 22
·4041
·
IF 5.719
Tao Zhang,Yan Liu,Guihuan Chen,Hengjun Liu,Yuanyuan Han,Shuhao Zhai,Leqing Zhang,Yuanyuan Pan,Qinghao Li,Qiang Li
Transition metal fluoride (TMF) conversion cathodes, with high energy density, are recognized as promising candidates for next-generation high-energy Li/Na-ion batteries (LIBs/SIBs). Unfortunately, the poor electronic conductivity and detrimental active material dissolution of TMFs seriously limit the performance of TMF-LIBs/SIBs. A variety of FeF3-based composites are designed to improve their electrochemical characteristics. However, the storage mechanism of the conversion-type cathode for Li+and Na+co-storage is still unclear. Here, the storage mechanism of honeycomb iron (III) fluoride and carbon (FeF3@C) as a general cathode for LIBs/SIBs is analyzed by kinetics. In addition, the FeF3@C cathode shows high electrochemical performance in a full-cell system. The results show that the honeycomb FeF3@C shows excellent long-term cycle stability in LIBs (208.3 mA h g−1at 1.0 C after 100 cycles with a capacity retention of 98.1%). As a cathode of SIBs, the rate performance is unexpectedly stable. The kinetic analysis reveals that the FeF3@C cathode exhibit distinct ion-dependent charge storage mechanisms and exceptional long-durability cyclic performance in the storage of Li+/Na+, benefiting from the synergistic contribution of pseudocapacitive and reversible redox behavior. The work deepens the understanding of the conversion-type cathode in Li+/Na+storage.Keywords:full-cell;kinetic analysis;metal fluorides;storage mechanism
研究领域:
材料科学
·
电化学
✓ 已验证
DOI
PubMed
高影响因子
ELECTROCHIMICA ACTA
·
2018
·
IF 5.116
Renming Zhan,Bolei Shen,Qiuju Xu,Youquan Zhang,Yushan Luo,Heng Liu,Hao Chen,Feng Liu,Changming Li,Maowen Xu
Pristine Na 3 Fe 0.5 V 1.5 (PO 4 ) 3 and carbon-coated Na 3 Fe 0.5 V 1.5 (PO 4 ) 3 nano-particles are synthesized by one-step solid-phase reaction method. The full battery based on Na 3 Fe 0.5 V 1.5 (PO 4 ) 3 @C nano-particles as cathode and commercial hard carbon as anode outputs a high working voltage about 3.3 V and exhibits superior-rate performance. While the rate increases from 0.5 to 1, 2 and 5 C, the discharge capacity of full battery slightly decreases from 110 to 94, 88, 79 mA h g −1 gradually. Moreover, it shows excellent cycle stability with a capacity retention of 93.8% after 200 cycles at 0.5 C.
研究领域:
材料科学
·
电化学
✓ 已验证
DOI
高影响因子
Science China-Chemistry
·
2025
·
IF 9.7
Liang Haoyue,Zhong Xingguo,Huang Guxin,Liu Wenpan,Liu Yao,Wang Shuhao,Wang Deyu,Liu Hao,Wang Hao,Zhai Tianyou,Li Huiqiao
Li 3 VO 4 has been a promising insertion anode material for Li-ion batteries, which has high theoretical capacity (up to ∼600 mAh g −1 ) and safe Li insertion voltage (0.5–1 V vs. Li/Li + ). However, the low initial Coulombic efficiency (ICE) has always been the bottleneck limiting its commercialisation. Here, we propose a facile pre-lithiation method to controllably elevate the ICE by the post-treatment of the prepared Li 3 VO 4 composite electrode based on an immersion reaction. In this process, the whole electrode was immersed in the liquid Li source, via which the ICE of the Li 3 VO 4 electrode can be controllably elevated from 80% to over 100% within 5 min of pre-lithiation. Rather than the traditional powder treatment for pre-lithiation, this process we proposed minimizes the impact of pre-lithiation on the battery assembly process. Moreover, we further investigated the effect of this pre-lithiation process on the functional components in the electrode. For the first time the ICE of Li 3 VO 4 electrode was elevated to 100%. As a result, the initial reversible capacity of LiFePO 4 ∥Li 3 VO 4 full cell was improved from 44.0 to 146.3 mAh g −1 , demonstrating the feasibility and great potential of the process.
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
高影响因子
ADVANCED MATERIALS
·
2020
·Vol. 32
·期 24
·2001740
·
IF 27.398
Weidong Zhang,Qiang Wu,Jinxin Huang,Lei Fan,Zeyu Shen,Yi He,Qi Feng,Guannan Zhu,Yingying Lu
The low Coulombic efficiency of the lithium metal anode is recognized as the real bottleneck to practical high-efficiency lithium metal batteries with limited Li excess. The grain size and microstructure of deposited lithium strongly influences the lithium plating/stripping efficiency. Here, a solubilizer-mediated carbonate electrolyte that can realize grain coarsening of lithium deposits (>20 µm in width) with oriented columnar morphology, which is in sharp contrast with conventional nanoscale dendrite-like lithium deposits in carbonate electrolytes, is reported. It exhibits improved Li Coulombic efficiency to 98.14% at a high capacity of 3 mAh cm −2 over 150 cycles, because the colossal lithium deposition with minimal tortuosity can maintain the bulk Li with continuous electron conducting pathway during the stripping process, thus enabling efficient Li utilization. Li/NMC811 full batteries, composed of thin Li anode (45 µm) and a high-capacity NMC811 cathode (16.7 mg cm −2 ), can achieve at least 12 times longer lifespan (200 cycles).
研究领域:
材料科学
·
电化学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2021
·
IF 13.273
Yang Liu,Xiaoming Zhou,Xue Wang,Gairong Chen,Rong Liu,Yu Ma,Yang Bai,Guohui Yuan
Developing the alternative anode materials that can completely resolve the dendrite concern of Zn metal anodes are desirable for reliable aqueous zinc-ion batteries. However, the sub-optimal charging potentials of reported anodes inevitably cause the discounted output voltage and energy density on a zinc-ion full battery. Herein, it is firstly demonstrated that the hydrated titanic acid (H 2 Ti 3 O 7 ·xH 2 O) can be applied as an ultralow-potential anode for the aqueous zinc-ion full battery. The depressed potential (0.2 V vs. Zn 2+ /Zn) of the H 2 Ti 3 O 7 ·xH 2 O compared to that of reported candidates could significantly enhance the operating voltage level of the zinc-ion full battery. Furthermore, the comprehensive analyses demonstrate that the expanded lattice spacings and interlayer crystal water stimulate Zn 2+ along with H + to jointly insert and extract on the H 2 Ti 3 O 7 ·xH 2 O anode. The low-potential H 2 Ti 3 O 7 ·xH 2 O anode exhibits an impressive cycling performance and coulombic efficiency by virtue of the assistance from interlayer crystal water. The assembled Zn x MnO 2 //H 2 Ti 3 O 7 ·xH 2 O zinc-ion full battery delivers the decent electrochemical performance, especially a high output voltage of over 1 V. This low-potential, high-stable H 2 Ti 3 O 7 ·xH 2 O anode reveals the exceptional potential for aqueous zinc-ion full batteries.
研究领域:
材料科学
·
电化学
✓ 已验证
DOI
高影响因子
JOURNAL OF POWER SOURCES
·
2024
·
IF 8.1
Jingwen Li,Mingqiang Li,Haochen Weng,Shuailiang Xu
Chloride ion batteries (CIBs) are considered promising candidates in the field of batteries. Safety concerns are a major issue in battery technology, which can be effectively addressed by using water-in-salt electrolyte. However, traditional CIBs suffer from issues such as poor lifespan and low cycling capacity. Therefore, our research proposes a novel aqueous CIB composed of a VOC (Vanadium pentoxide doped with graphite) cathode, a zinc anode, and (CH 3 ) 4 NCl + LiCl aqueous electrolyte for the first time. The developed battery boasts advantages such as low cost, arbitrary folding, lightweight design, and overall safety. The battery exhibits a high discharge platform of approximately 2.5V and considerable discharge capacity, reaching a maximum of 3.49mAh cm −2 at a current density of 1A g −1 . After 200 cycles, the capacity retention rate remains around 77 %. Notably, the battery is very simple to fabricate and burn in flames at a temperature of 1300 °C without explosion. And it is also able to work normally when subjected to folding, rolling, and piercing. This low-cost, flexible, and safe novel aqueous chloride-ion battery holds great application potential in portable devices, automotive, military, and other industries, opening up new possibilities for the future development of batteries.
研究领域:
能源材料科学
·
电化学
✓ 已验证
产品关联
DOI
高影响因子
Nanoscale
·
2024
·
IF 5.8
Jie Zhang,Kongjun Zhu,Zhihan Kong,Dingwei Ji,Jun Guo,Zheng Zhang,Jing Wang,Kang Yan,Jinsong Liu
An all-vanadium-based lithium–ion full battery is successfully assembled with the hierarchical micro–nano yolk–shell structure V2O5 and V2O3 as cathode and anode, which are obtained through a facile solvothermal method with heat treatment under different atmospheres. When used as the cathode of lithium–ion battery, the hierarchical micro–nano yolk–shell V2O5 demonstrated higher capacities than bulk V2O5, commercial LiFePO4, and LiNi0.8Co0.1Mn0.1O2 cathodes at various current densities. The all-vanadium-based lithium–ion full battery shows good cycle performance at 0.1C and stable charge/discharge abilities at large current densities. The electrochemical performance of the full battery results from the low impedance and pseudocapacitance-dominated lithium storage mechanism derived from micro–nano yolk–shell structure.
研究领域:
材料科学
·
能源存储
✓ 已验证
产品关联
DOI
PubMed
高影响因子
ChemElectroChem
·
2022
·Vol. 9
·期 15
·e202200256
·
IF 4.782
Rongrong Miao,Songheng Xie,Xiang Lin,Tao Zhang,Jingang Song,Xiangxuan Huang
Graphical Facile and scalable route to MnS@NSC composite : A sub-micro MnS@NSC composite was synthesized facilely by employing low-cost commercial MnS as raw material and in-situ compositing with N,S-codoped carbon, which exhibit excellent electrochemical performance in half/full lithium-ion cells. Nanostructured manganese sulfide (MnS) has been verified to be effective to address the issues of MnS as next-generation anode material in high energy lithium-ion batteries (LIBs). The scale-up fabrication, however, is still challenged by the multistep and rigid processes of synthesizing MnS nanoparticles. Herein, by using micro-sized MnS as low-cost MnS source, we present a facile, cost-effective and scalable strategy to prepare a sub-micrometer sized MnS@NSC composite, in which MnS nanoparticles are encapsulated into N,S-codoped carbon matrix (NSC) deriving from polyacrylonitrile (PAN). The NSC matrix combined with homogeneously distributed MnS nanoparticles crushed from micro-MnS provide fast access of lithium ion/electron and robust structure, leading to remarkable cycling stability (551.6 mAh g −1 at 0.5 A g −1 even after 400 cycles) and desirable rate capability (624 mAh g −1 at 0.1 A g −1 and around 300 mAh g −1 at 2 A g −1 ). Particularly, the assembled LIB full cell by coupling the anode with LiFePO 4 (LFP) cathode presents an encouragingly cycling retention of 96 % after 100 cycles. This work provides a new possibility for design and industrial implementation of MnS as advanced anode materials for LIBs.
研究领域:
材料科学
·
能源存储
✓ 已验证
DOI
高影响因子
Energy Storage Materials
·
2024
·
IF 18.9
Caiyun Sun,Guangsheng Huang,Chaohe Xu,Lingjie Li,Aitao Tang,Xiaoyuan Zhou,Jingfeng Wang,Fusheng Pan
Aqueous rechargeable Mg-ion batteries (ARMIBs) are promising for large-scale energy storage due to the aqueous electrolyte's high safety and low cost. However, the aqueous electrolyte's narrow electrochemical stability window (ESW) significantly hinders the development of ARMIBs, especially the compatibility of electrolytes with anode materials . We first report a TiO 2 (B) anode for ARMIBs that has high compatibility with wide potential aqueous electrolytes (ESW: ∼3.66 V), thus resulting in a low magnesiated potential (∼0.95 V vs. Mg 2+ /Mg), highest capacity (50 mA g −1 : 247.7 mAh g −1 ) reported for Ti-based oxide anodes in aqueous metal-ion batteries thus far, and fast Mg 2+ diffusion kinetics (∼3.49 × 10 −11 cm 2 s −1 ). When the magnesiated TiO 2 (B) (Mg x TiO 2 (B)) anode is paired with V 2 O 5 , the Mg x TiO 2 (B)||V 2 O 5 full cell can deliver high voltage (2.5 V), high capacity (100 mA g −1 : 64.4 mAh g −1 , based on the total electrode mass) and high cycling stability with no capacity decay after 200 cycles at 100 mA g −1 . The versatile intercalation chemistry of TiO 2 (B) observed here is expected to spur the development of high-voltage ARMIBs.
研究领域:
材料科学
·
电化学
✓ 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）