JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
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2022
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IF 10.319
Bofang Tian,Zhenxin Huang,Xilian Xu,Xiehong Cao,Hui Wang,Tingting Xu,Dezhi Kong,Zhuangfei Zhang,Jie Xu,Jinhao Zang,Xinjian Li,Ye Wang
Although lithium metal and sodium metal are promised as ideal anodes for lithium ion batteries (LIBs) and sodium ion batteries (SIBs), they still suffer from inevitable dendrite growth. In light of this, silver nanoparticles (Ag NPs) are sputtered onto three-dimensional carbon nanotube decorated graphene foam (3D CNT-GF) to construct superior 3D Ag/CNT-GF composite matrix for lithium metal anodes (LMAs) and sodium metal anodes (SMAs). With this design, lithiophilic/sodiophilic Ag NPs could provide favorable sites to guide Li/Na metal nucleation and growth, thus leading to low nucleation overpotentials, high Coulombic efficiency and long cycle performance. Accordingly, 3D Ag/CNT-GF electrodes can stably cycle for 1000 and 750 cycles at 3 mA cm −2 with 1 mAh cm −2 for SMAs and LMAs, respectively. More attractively, it can also stably sustain 300 cycles (SMAs) and 500 cycles (LMAs) at a large current density of 5 mA cm −2 with 1 mAh cm −2 . The excellent electrochemical performance can be attributed to the lithiophilic/sodiophilic electrode surface, 3D porous electrode structure and the dendrite-free morphology as demonstrated by ex-situ scanning electron microscopy (SEM) and in-situ optical microscopy analyses. Furthermore, full cells based on Na@3D Ag/CNT-GF||Na 3 V 2 (PO 4 ) 3 @carbon (NVP@C) and Li@3D Ag/CNT-GF||LiFePO 4 (LFP) could deliver highly reversible capacities of 90.1 and 106.4 mAh g −1 , respectively, at 100 mA g −1 after 200 cycles for SIBs and LIBs, respectively. This work demonstrates a novel 3D Ag/CNT-GF matrix for boosting Li/Na deposition stability for their future applications.
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
ACS Applied Materials & Interfaces
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2019
·
IF 8.456
Yaoyu Ren,Yang Shen,Yuanhua Lin,Ce-Wen Nan
Al-contained Li7–xLa3Zr2–xTaxO12 (xTa-LLZO) powder was synthesized via solid-state reaction, where increasing the Ta doping level was found to reduce the average particle size and facilitate a higher relative density in the sintered pellet. 0.8Ta-LLZO pellets sintered at 1150 °C achieved a relative density of 96.2 ± 0.2% and survived the Li striping/plating test under a unidirectional current polarization of 0.5 mA/cm2 for more than 8 h without short-circuiting. In contrast, other xTa-LLZO sintered pellets with lower Ta doping levels were short-circuited by lithium dendrites after polarization for much shorter time periods. The microstructure of the sintered body played a more essential role in lithium dendrite prevention compared to relative density alone. By characterizing the microstructure of xTa-LLZO sintered pellets, we proposed a formation mechanism of the pathways for lithium dendrite growth.
研究领域:
材料科学
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电化学
✓ 已验证
DOI
PubMed
高影响因子
ACS Applied Nano Materials
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2024
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IF 5.3
Meiyang Hu,Xianwen Wang,Yajun Li,Sheng Zhong,Xuan Zhong,Rashid Khan,Jingzhe Zhao,Lu Huang,Yingpeng Wu
Constructing artificial SEI (ASEI) is an effective method to suppress dendrite growth and achieve a stable solid electrolyte interphase in a potassium metal anode. However, traditional methods for preparing ASEI still have some problems such as poor adhesion and inadequate/uneven reactions. These drawbacks significantly impede ion diffusion kinetics and the effectiveness of dendrite inhibition. In this study, an in situ reaction approach was introduced to fabricate a Fe-based protective layer on the surface of K via the spontaneous dynamic chemical reaction between Fe3O4 and K. The in situ-formed Fe-based artificial protective layer not only prevents the corrosion of the carbonate electrolyte, but also has high potassiophilicity and high ionic conductivity, which can reduce side reactions, regulate the uniform adsorption of K+, and improve the transport kinetics of K+, thus inhibiting the growth of potassium metal dendrites. With the Fe-based protective layer, the symmetric cell demonstrates a cycling stability exceeding 1700 h at 0.5 mA cm–2 and 0.5 mAh cm–2. Notably, it also exhibits a promising cycling stability and rate performance when paired with a Prussian blue (PB) cathode. This work offers insights into the development of protection layers for an advanced alkali metal anode.
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
Journal of Materials Chemistry A
·
2024
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IF 10.7
Minghui Li,Cai Chen,Hongze Luo,Qingshuai Xu,Keyou Yan,Yongcai Qiu,Guangmin Zhou
Li metal anodes are considered among the most ideal candidates for next generation batteries owing to their lowest electrochemical potential and high theoretical capacity. However, the highly reactive Li metal is subject to continuous side reactions with conventional carbonate electrolytes. The resulting unsatisfying solid electrolyte interface (SEI) induces severe Li dendritic growth. Therefore, there is an urgent need to effectively control the components of SEI to solve the electrolyte/anode interface electrochemical instability. Herein, LiDFP and LiNO3 are introduced into the electrolyte to modulate the composition of the SEI. Owing to the lower lowest unoccupied molecular orbital (LUMO) energy levels of LiDFP and LiNO3 relative to those of the solvents, LiDFP and LiNO3 have preferential reducibility and thus generate a stable SEI containing LiF and Li3N, which has swift ion migration kinetics and homogeneous Li deposition behaviors. As a result, our electrolyte modified by additives enables the anode to achieve an excellent coulombic efficiency of 98% and exhibits an ultra-long cycling life of over 700 h in symmetrical cells. Li metal full cells paired with the LFP or NCM811 cathode also have excellent long cycling performance. This work demonstrates that additive-modified electrolytes are a viable and simple strategy for the evolution of 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
CHEMICAL ENGINEERING JOURNAL
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2020
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IF 10.652
Yuan Tian,Yongling An,Chuanliang Wei,Yuan Tao,Yuchan Zhang,Huiyu Jiang,Liwen Tan,Jinkui Feng,Yitai Qian
Lithium (Li) metal anode is deemed as one of the most fascinating anodes due to its high energy density . Nonetheless, low Coulombic efficiency and safety issues caused by detrimental Li dendrites growth severely hamper its practical application. Herein, we construct an ultrafine TiO 2 confined in 3D freestanding carbon paper by one-step green in-situ oxidation of Ti 3 C 2 T x MXene film with greenhouse gas CO 2 . The lithiophilic TiO 2 seeds and freestanding 3D carbon matrix can synergistically induce uniform Li deposition and buffer the volume changes during lithium striping and deposition, which ensure improved electrochemical performance with high Coulombic efficiency and low overpotential, etc . The growth process of metallic Li on C/TiO 2 is also systematically investigated. Moreover, the C/TiO 2 @Li||LiFePO 4 full batteries present a stable cycling performance over 250cycles at 1.0C and superior rate performance. Additionally, this work proposes an alternative way to utilize CO 2 , which may alleviate greenhouse effect and boost sustainable development. These results may be useful for both the design of dendrite-free lithium metal batteries and the sustainable utilizing of CO 2 .
研究领域:
材料科学
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能源存储
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可持续发展
✓ 已验证
产品关联
DOI
高影响因子
ACS Applied Materials & Interfaces
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2019
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IF 8.456
Jiahang Chen,Huijun Yang,Xuan Zhang,Jingyu Lei,Huiming Zhang,Huanhuan Yuan,Jun Yang,Yanna Nuli,Jiulin Wang
Rechargeable lithium-metal batteries have gained significant attention as potential candidates of energy storage systems; however, severe safety issues including flammable electrolyte and dendritic lithium formation hinder their further practical application. In this work, we develop a novel intrinsic flame-retardant electrolyte, which enables a stable and dendrite-free cycling with lithium plating/stripping Coulombic efficiency of up to 99.1% over 500 cycles. Raman spectra indicate that no free molecular solvent exists, and X-ray photoelectron spectroscopy reveals the LiF-rich interphase on the Li-metal anode. When coupled with sulfurized pyrolyzed poly(acrylonitrile) cathode, it shows a benign electrochemical reversibility with the areal capacity of up to 3.41 mAh cm–2 after 70 cycles. To further check its compatibility with sulfur cathode, a higher sulfur content (51.6%) is examined with the areal capacity of 3.92 mAh cm–2 and sulfur utilization of 81.7%. This work provides an alternative for safe and high-performance Li–S batteries via a novel electrolyte strategy.
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
Journal of Materials Chemistry A
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2019
·Vol. 7
·期 16
·9716-9725
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IF 10.733
Yuan Tian,Yongling An,Shenglin Xiong,Jinkui Feng,Yitai Qian
Metal-based anode materials such as Sb, Sn, Bi, etc., attract great attention for battery use due to their high electronic conductivity and high energy density. However, the large volume expansion during the alloying–dealloying process results in fast performance decay. In this work, we successfully grow hierarchical Sb, Sn and Bi firmly on MXene paper via a facile one-step electrodeposition process in a green ethylene glycol-based system. As robust, flexible, free-standing and binder-free anodes for potassium-ion batteries, the hierarchical structure provides a short diffusion distance for potassium ions and buffer volume change during the potassiation/depotassiation process. Highly conductive and flexible MXene paper serves as an elastic current collector providing an electronic highway to facilitate electron transport and accommodate volume change during the cycling process. MXene@Sb delivers a high reversible capacity of 516.8 mA h g−1, a high rate capacity of 270 mA h g−1 at 500 mA g−1, and stable capacity retention with a capacity fading rate of only 0.042% per cycle. This work may also be interesting in relation to research on other rechargeable batteries, catalysts, sensors, etc.
研究领域:
材料科学
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能源存储
✓ 已验证
产品关联
DOI
高影响因子
Nanoscale
·
2024
·Vol. 16
·期 27
·13171-13182
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IF 5.8
Xiao Wang,Chen Zhao,Peng Luo,Yan Xin,Yunnian Ge,Huajun Tian
Rechargeable aluminum ion batteries (RAIBs) exhibit great potential for next-generation energy storage systems owing to the abundant resources, high theoretical volumetric capacity and light weight of the Al metal anode. However, the development of RAIBs based on Al metal anodes faces challenges such as dendrite formation, self-corrosion, and volume expansion at the anode/electrolyte interface, which needs the rational design of an aluminum anode for high-performance RAIBs. This work proposes a novel and low-cost strategy by utilizing an alloy electrodeposition method in a low-temperature molten salt system to fabricate an aluminum–tin (AlSn) alloy coating layer on copper foil as the anode for RAIBs, which successfully addresses the issues of dendrite formation and corrosion at the anode/electrolyte interface. The artificial AlSn alloy layer could enhance the active sites for metal Al homogeneous deposition and effectively retard the dendrite formation, which was verified by an in situ optical microscopy study. The symmetric AlSn@Cu cell demonstrates a low average overpotential of ∼38 mV at a current density of 0.5 mA cm−2 and a long-term lifespan of over 1100 h. Moreover, the AlSn@Cu//Mo6S8 full cells deliver a high capacity of 114.9 mA h g−1 at a current density of 100 mA g−1 and maintain ultra-stable cycling stability even over 1400 cycles with a ∼100% coulombic efficiency (CE) during the long-term charge/discharge processes. This facile alloy electrodeposition approach for designing high-performance Al-based anodes provides insights into the understanding of artificial interface chemistry on Al-based anodes and potentially accelerates the design of high-performance RAIBs.
研究领域:
材料科学
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电化学
✓ 已验证
DOI
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
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2020
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IF 7.489
Hongyu Dong,Yiwen Wang,Panpan Tang,Hao Wang,Ke Li,Yanhong Yin,Shuting Yang
Although the theoretical energy density of lithium-oxygen batteries is extremely high, pulverization of lithium metal anode obviously influences batteries cycling performance. In this work, the cathode was coated with a membrane to protect the lithium anode from moisture attacking and avoid the pulverization. The membrane is composed of polyethylene oxide and poly tetra fluoroethylene, which improves the cycle life of the lithium-oxygen batteries cycles to 230 times, with a limited specific capacity of 1000 mAh·g −1 , at a current density of 100 mA·g −1 . Furthermore, the batteries perform stable charge and discharge cycles for 55 times in the air atmosphere, with the relative humidity greater than 50%. It demonstrates this strategy provides a new direction for the development of high-performance lithium-oxygen batteries.
研究领域:
材料科学
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电化学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Energy & Environmental Science
·
2020
·Vol. 14
·期 1
·382-395
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IF 30.289
Wei Liu,Zidong Chen,Zheng Zhang,Pingxian Jiang,Yungui Chen,Eunsu Paek,Yixian Wang,David Mitlin
Sodium metal battery (SMB, NMB) anodes can become dendritic due to an electrochemically unstable native Na-based solid electrolyte interphase (SEI). Herein Li-ion activated tin sulfide graphene nanocomposite membrane (A-SnS–G) is employed as an artificial SEI layer, allowing cyclability of record-thin 100 μm Na metal foils. The thin Na metal is prepared by a self-designed metallurgical rolling protocol. A-SnS–G is initially placed onto the polypropylene (PP) separator but becomes in situ transferred onto the Na metal surface. Symmetric metal cells protected by A-SnS–G achieve low-overpotential extended high-rate cycling in a standard carbonate electrolyte (EC : DEC = 1 : 1, 5% FEC). Accumulated capacity of 1000 mA h cm−2 is obtained after 500 cycles at 4 mA cm−2, with accumulated capacity-to-foil capacity (A/F) ratio of 90.9. This is among the most favorable cycle life, accumulated capacity, and anode utilization combinations reported. Protection by non-activated SnS–G membrane yields significantly worse cycling, albeit still superior to the baseline unprotected sodium. Post-mortem and dedicated light optical analysis indicate that metal swelling, dendrite growth and dead metal formation is extensive for the unprotected sample, but is suppressed with A-SnS–G. Per XPS, post-100 cycles near-surface structure of A-SnS–G is rich in metallic Sn alloys and inorganic carbonate salts. Even after 300 cycles, Li-based SEI components ROCO2-Li, Li2CO3 and LiF are detected with A-SnS–G. As a proof of principle, an SMB with a high mass loading (6 mg cm−2) NVP cathode and a A-SnS–G protected anode delivered extended cyclability, achieving 74 mA h g−1 after 400 cycles at 0.4C.
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
SOLID STATE IONICS
·
2018
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IF 2.751
Yulan Li,Zhongfa Yang,Zhenrui Wu,Jie Li,Jian Zou,Cheng Jiang,Jingyi Yang,Liping Wang,Xiaobin Niu
In this study, the effects of lithium salts (i.e. LiPF 6 , LiClO 4 and LiN(SO 2 CF 3 ) 2 ) and solvents (i.e. carbonate and ether type) on the Li metal anode electrochemical performance are systematically studied. It is found that LiN(SO 2 CF 3 ) 2 , denoted as LiTFSI, in 1,3-dioxolane (DOL) and 1,2-dimethoxyethane (DME) as electrolyte offers the best performance with a cycle life of 1100 h under the capacity of 2 mAh/cm 2 and current density of 2 mA/cm 2 . Lithium stripping/plating produces porous loose lithium powders rather than dendrites. Both lithium salts and solvents have influences on the lithium powder nucleation and growth. In the LiTFSI-DOL/DME system, lithium metal after stripping/plating has a relative flat and dense surface, which concomitantly brings in a low charge transfer resistance , low solid electrolyte interphase resistance, and elongated cycle life. A high Li + transference number and a high Li + -solvent interaction force are beneficial to an even Li + flux and a stable Li-electrolyte interface. This study sheds light on the importance of electrolytes for high performance lithium metal anodes.
研究领域:
电化学
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材料科学
✓ 已验证
产品关联
DOI
高影响因子
Energy Storage Materials
·
2017
·
IF 0
Liping Wang,Lei Zhang,Qingji Wang,Wenjun Li,Bo Wu,Weishang Jia,Yuehui Wang,Jingze Li,Hong Li
Lithium metal is a Holy Grail anode for high energy density lithium ion batteries . While, its high chemical reactivity and high tendency to form dendrites hinder its wide applications. Here, in this study, we stabilize lithium metal by engineering an artificial SEI layer, namely fabricating a conformal nano-meter thickness amorphous Al 2 O 3 thin film via magnetron sputtering technique on its surface. The obtained Al 2 O 3 modified Li metals present robust chemical surface stability and effectively restrain the dendrite growth. 20 nm-thick Al 2 O 3 film modified lithium metal in an all-solid-state battery Li/PEO-LiTFSI/Li ensures a cycle life of 660 h at a current density of 0.1 mA/cm 2 . Contradicting to a traditional belief of lithium plating at the current collector side via crossing the Al 2 O 3 film, it directly plates on the Al 2 O 3 film next to the separator side. Al 2 O 3 film plays a crucial role as a “surfactant” in inducing a layer-by-layer film growth mode.
研究领域:
材料科学
·
电化学
✓ 已验证
产品关联
DOI
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