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784 results on '"He, Yan-Bing"'

201. A Highly Efficient Ion and Electron Conductive Interlayer To Achieve Low Self-Discharge of Lithium–Sulfur Batteries

Author

Xiao, Shujie, Huang, Ling, Lv, Wei, and He, Yan-Bing

Abstract

The practical use of lithium–sulfur (Li–S) batteries is limited by serious self-discharge, fast capacity loss, and severe lithium anode erosion due to the shuttling of lithium polysulfides (LiPSs). Herein, we developed a highly efficient ion and electron conductive interlayer composed of Ti2(SO4)3/carbon composite layer-coated Li1.3Al0.3Ti1.7(PO4)3(CLATP) and graphene to effectively block the diffusion of polysulfide anions but allow rapid Li ion transfer, therefore significantly inhibiting the self-discharge and boosting the cyclic stability of Li–S batteries. The Ti2(SO4)3/carbon thin protective layer endows an optimized adsorption ability toward LiPSs and avoids the side reactions between LATP and LiPSs. The high electronic conductivity of graphene and high ionic conductivity of CLATP ensures the hybrid interlayer rapid electron and fast Li ion transport. As a result, the Li–S battery with the hybrid interlayer shows a high discharge capacity of 671 mAh g–1after 500 cycles with an extremely low capacity fading of 0.022% per cycle at 1 C. Moreover, the battery shows no self-discharge even after rest for 12 days. This work opens up a new way for the design of functional separators to significantly improve the electrochemical performance of Li–S batteries.

Published
2022
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202. Compact 3D Copper with Uniform Porous Structure Derived by Electrochemical Dealloying as Dendrite-Free Lithium Metal Anode Current Collector

Author

Zhao, Heng, Lei, Danni, He, Yan-Bing, Yuan, Yifei, Yun, Qinbai, Ni, Bin, Lv, Wei, Li, Baohua, Yang, Quan-Hong, Kang, Feiyu, Lu, Jun, Zhao, Heng, Lei, Danni, He, Yan-Bing, Yuan, Yifei, Yun, Qinbai, Ni, Bin, Lv, Wei, Li, Baohua, Yang, Quan-Hong, Kang, Feiyu, and Lu, Jun

Abstract

The development of lithium (Li) metal anodes Li metal batteries faces huge challenges such as uncontrolled Li dendrite growth and large volume change during Li plating/stripping, resulting in severe capacity decay and high safety hazards. A 3D porous copper (Cu) current collector as a host for Li deposition can effectively settle these problems. However, constructing a uniform and compact 3D porous Cu structure is still an enormous challenge. Herein, an electrochemical etching method for Cu–Zinc (Zn) alloy is reported to precisely engrave a 3D Cu structure with uniform, smooth, and compact porous network. Such a continuous structure endows 3D Cu excellent mechanical properties and high electrical conductivity. The uniform and smooth pores with a large internal surface area ensures well dispersed current density for homogeneous Li metal deposition and accommodation. A smooth and stable solid electrolyte interphase is formed and meanwhile Li dendrites and dead Li are effectively suppressed. The Li metal anode conceived 3D Cu current collector can stably cycle for 400 h under an Li plating/stripping capacity of 1 mA h cm−2 and a current density of 1 mA cm−2. The Li@3D Cu\\LiFePO4 full cells present excellent cycling and rate performances. The electrochemical dealloying is a robust method to construct 3D Cu current collectors for dendrite-free Li metal anodes. © 2018 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim

Published
2018

203. Modification strategies of Li7La3Zr2O12ceramic electrolyte for high-performance solid-state batteries

Author

Lv, Jian-Shuai, Guo, Shao-Ke, and He, Yan-Bing

Abstract

Enormous research focusing on solid-state electrolyte promotes the development of solid-state batteries. Compared to lithium-ion batteries using liquid electrolyte, the solid-state batteries feature the high energy density and non-flammability, which accelerates the revolution in portable electronics and transportation. Garnet-type Li7La3Zr2O12(LLZO) solid-state electrolyte is considered as the promising solid-state electrolyte due to high ionic conductivity, Li transference number and shear modulus. However, surface contaminant and poor contact with lithium inhibit its practical application in lithium metal batteries. The review provides a brief introduction about structure and properties of LLZO. Then, we conclude the modification strategies for increasing ionic conductivity, enhancing interfacial contact and inhibiting lithium dendrite. At last, the challenge and perspectives are discussed for development of LLZO in solid-state batteries.

Published
2021
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204. Optimized Catalytic WS2–WO3 Heterostructure Design for Accelerated Polysulfide Conversion in Lithium–Sulfur Batteries.

Author

Zhang, Bin, Luo, Chong, Deng, Yaqian, Huang, Zhijia, Zhou, Guangmin, Lv, Wei, He, Yan‐Bing, Wan, Ying, Kang, Feiyu, and Yang, Quan‐Hong

Subjects
LITHIUM sulfur batteries, POLYSULFIDES, ENERGY density, METALLIC oxides, HETEROSTRUCTURES, CATALYTIC activity, CATALYSIS
Abstract

The lithium–sulfur (Li–S) battery is a next generation high energy density battery, but its practical application is hindered by the poor cycling stability derived from the severe shuttling of lithium polysulfides (LiPSs). Catalysis is a promising way to solve this problem, but the rational design of relevant catalysts is still hard to achieve. This paper reports the WS2–WO3 heterostructures prepared by in situ sulfurization of WO3, and by controlling the sulfurization degree, the structure is controlled, which balances the trapping ability (by WO3) and catalytic activity (by WS2) toward LiPSs. As a result, the WS2–WO3 heterostructures effectively accelerate LiPS conversion and improve sulfur utilization. The Li–S battery with 5 wt% WS2–WO3 heterostructures as additives in the cathode shows an excellent rate performance and good cycling stability, revealing a 0.06% capacity decay each cycle over 500 cycles at 0.5 C. By building an interlayer with such heterostructure‐added graphenes, the battery with a high sulfur loading of 5 mg cm−2 still shows a high capacity retention of 86.1% after 300 cycles at 0.5 C. This work provides a rational way to prepare the metal oxide–sulfide heterostructures with an optimized structure to enhance the performance of Li–S batteries. [ABSTRACT FROM AUTHOR]

Published
2020
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205. Low Resistance-Integrated All-Solid-State Battery Achieved by Li7 La3 Zr2 O12 Nanowire Upgrading Polyethylene Oxide (PEO) Composite Electrolyte and PEO Cathode Binder

Author

Wan, Zipei, primary, Lei, Danni, additional, Yang, Wei, additional, Liu, Cheng, additional, Shi, Kai, additional, Hao, Xiaoge, additional, Shen, Lu, additional, Lv, Wei, additional, Li, Baohua, additional, Yang, Quan-Hong, additional, Kang, Feiyu, additional, and He, Yan-Bing, additional

Published
2018
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212. A Nacre-Like Carbon Nanotube Sheet for High Performance Li-Polysulfide Batteries with High Sulfur Loading

Author

Pan, Zheng-Ze, primary, Lv, Wei, additional, He, Yan-Bing, additional, Zhao, Yan, additional, Zhou, Guangmin, additional, Dong, Liubing, additional, Niu, Shuzhang, additional, Zhang, Chen, additional, Lyu, Ruiyang, additional, Wang, Cong, additional, Shi, Huifa, additional, Zhang, Wenjie, additional, Kang, Feiyu, additional, Nishihara, Hirotomo, additional, and Yang, Quan-Hong, additional

Published
2018
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219. General template-free strategy for fabricating mesoporous two-dimensional mixed oxide nanosheetsviaself-deconstruction/reconstruction of monodispersed metal glycerate nanospheres

Author

Kaneti, Yusuf Valentino, primary, Salunkhe, Rahul R., additional, Wulan Septiani, Ni Luh, additional, Young, Christine, additional, Jiang, Xuchuan, additional, He, Yan-Bing, additional, Kang, Yong-Mook, additional, Sugahara, Yoshiyuki, additional, and Yamauchi, Yusuke, additional

Published
2018
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223. Discovering a First-Order Phase Transition in the Li-CeO2 System

Author

Li, Kaikai, Zhou, Xiaoye, Nie, Anmin, Sun, Sheng, He, Yan-Bing, Ren, Wei, Li, Baohua, Kang, Feiyu, Kim, Jang Kyo, Zhang Tong-Yi, Li, Kaikai, Zhou, Xiaoye, Nie, Anmin, Sun, Sheng, He, Yan-Bing, Ren, Wei, Li, Baohua, Kang, Feiyu, Kim, Jang Kyo, and Zhang Tong-Yi

Published
2017

224. Recent innovative configurations in high-energy lithium-sulfur batteries

Author

Liu, Ming, Qin, Xianying, He, Yan-Bing, Li, Baohua, Kang, Feiyu, Liu, Ming, Qin, Xianying, He, Yan-Bing, Li, Baohua, and Kang, Feiyu

Abstract

The detrimental shuttle effect of lithium polysulfides in ether-based liquid electrolytes upon cycling and their reduction/deposition on the lithium metal anode surface have severely restricted the practical application of rechargeable lithium-sulfur (Li-S) batteries. Much effort has been devoted to blocking the undesirable diffusion and shuttling of lithium polysulfides. In this review, recent developments of novel configurations for Li-S batteries, including hierarchical gradient cathodes, modified separators, solid-state electrolytes and lithium anode protection, are presented. It should be emphasized that the specific energy and cycling life are the most important parameters in the future production of Li-S batteries. Moreover, there are still enormous probabilities for the further development of novel configurations to improve the performance of the current Li-S batteries for portable devices and electric vehicles. Hence, these effective and reasonable configurations represent a significant step towards the commercialization of Li-S batteries.

Published
2017

225. High-Density Microporous Li4Ti5O12 Microbars with Superior Rate Performance for Lithium-Ion Batteries

Author

Tang, Linkai (author), He, Yan Bing (author), Wang, Chao (author), Wang, Shuan (author), Wagemaker, M. (author), Li, Baohua (author), Yang, Quan Hong (author), Kang, Feiyu (author), Tang, Linkai (author), He, Yan Bing (author), Wang, Chao (author), Wang, Shuan (author), Wagemaker, M. (author), Li, Baohua (author), Yang, Quan Hong (author), and Kang, Feiyu (author)

Abstract

Nanosized Li4Ti5O12 (LTO) materials enabling high rate performance suffer from a large specific surface area and low tap density lowering the cycle life and practical energy density. Microsized LTO materials have high density which generally compromises their rate capability. Aiming at combining the favorable nano and micro size properties, a facile method to synthesize LTO microbars with micropores created by ammonium bicarbonate (NH4HCO3) as a template is presented. The compact LTO microbars are in situ grown by spinel LTO nanocrystals. The as-prepared LTO microbars have a very small specific surface area (6.11 m2 g−1) combined with a high ionic conductivity (5.53 × 10−12 cm−2 s−1) and large tap densities (1.20 g cm−3), responsible for their exceptionally stable long-term cyclic performance and superior rate properties. The specific capacity reaches 141.0 and 129.3 mAh g−1 at the current rate of 10 and 30 C, respectively. The capacity retention is as high as 94.0% and 83.3% after 500 and 1000 cycles at 10 C. This work demonstrates that, in situ creating micropores in microsized LTO using NH4HCO3 not only facilitates a high LTO tap density, to enhance the volumetric energy density, but also provides abundant Li-ion transportation channels enabling high rate performance., RST/Fundamental Aspects of Materials and Energy

Published
2017
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226. A Facile Surface Reconstruction Mechanism toward Better Electrochemical Performance of Li4Ti5O12 in Lithium-Ion Battery

Author

Qian, Kun (author), Tang, Linkai (author), Wagemaker, M. (author), He, Yan Bing (author), Liu, Dongqing (author), Li, Hai (author), Shi, Ruiying (author), Li, Baohua (author), Kang, Feiyu (author), Qian, Kun (author), Tang, Linkai (author), Wagemaker, M. (author), He, Yan Bing (author), Liu, Dongqing (author), Li, Hai (author), Shi, Ruiying (author), Li, Baohua (author), and Kang, Feiyu (author)

Abstract

Through a facile sodium sulfide (Na2S)-assisted hydrothermal treatment, clean and nondefective surfaces are constructed on micrometer-sized Li4Ti5O12 particles. The remarkable improvement of surface quality shows a higher first cycle Coulombic efficiency (≈95%), a significantly enhanced cycling performance, and a better rate capability in electrochemical measurements. A combined study of Raman spectroscopy and inductive coupled plasma emission spectroscopy reveals that the evolution of Li4Ti5O12 surface in a water-based hydrothermal environment is a hydrolysis–recrystallization process, which can introduce a new phase of anatase-TiO2. While, with a small amount of Na2S (0.004 mol L−1 at least), the spinel-Li4Ti5O12 phase is maintained without a second phase. During this process, the alkaline environment created by Na2S and the surface adsorption of the sulfur-containing group (HS− or S2−) can suppress the recrystallization of anatase-TiO2 and renew the particle surfaces. This finding gives a better understanding of the surface–property relationship on Li4Ti5O12 and guidance on preparation and modification of electrode material other than coating or doping., RST/Fundamental Aspects of Materials and Energy

Published
2017
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228. A three-season field study on the in-situ remediation of Cd-contaminated paddy soil using lime, two industrial by-products, and a low-Cd-accumulation rice cultivar

Author

Huang DaoYou, Zhu Hanhua, Wang Shuai, Liu Shoulong, He Hai-Bo, Zhu Qi-hong, He Yan-bing, and Xu Chao

Subjects
China, Environmental remediation, Health, Toxicology and Mutagenesis, Field experiment, 0211 other engineering and technologies, Industrial Waste, 02 engineering and technology, 010501 environmental sciences, engineering.material, 01 natural sciences, Soil pH, Soil Pollutants, Cultivar, Cellulose, Environmental Restoration and Remediation, 0105 earth and related environmental sciences, Lime, 021110 strategic, defence & security studies, Chemistry, Public Health, Environmental and Occupational Health, Sowing, Oryza, Oxides, General Medicine, Calcium Compounds, Pollution, Biodegradation, Environmental, Agronomy, engineering, Brown rice, Seasons, Bagasse, Cadmium
Abstract

To mitigate the serious problem of Cd-contaminated paddy soil, we investigated the remediation potential of combining in-situ immobilization with a low-Cd-accumulation rice cultivar. A three-season field experiment compared the soil pH, available Cd and absorption of Cd by three rice cultivars with different Cd accumulation abilities grown in Cd-contaminated paddy soil amended with lime (L), slag (S), and bagasse (B) alone or in combination. The three amendments applied alone and in combination significantly increased soil pH, reduced available Cd and absorption of Cd by rice with no effect on grain yield. Among these, the LS and LSB treatments reduced the brown rice Cd content by 38.3-69.1% and 58.3-70.9%, respectively, during the three seasons. Combined with planting of a low-Cd-accumulation rice cultivar (Xiang Zaoxian 32) resulted in a Cd content in brown rice that met the contaminant limit (≤0.2mgkg-1). However, the grain yield of the low-Cd-accumulation rice cultivar was approximately 30% lower than the other two rice cultivars. Applying LS or LSB as amendments combined with planting a low-Cd-accumulation rice cultivar is recommended for the remediation of Cd-contaminated paddy soil. The selection and breeding of low-Cd-accumulation rice cultivars with high grain production requires further research.

Published
2016

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