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117 results on '"Zhang, Shao-Jian"'

1. Understanding the role of water-soluble guar gum binder in reducing capacity fading and voltage decay of Li-rich cathode for Li-ion batteries

Author

Yin, Zu-Wei, Zhang, Tao, Zhang, Shao-Jian, Deng, Ya-Ping, Peng, Xin-Xing, Wang, Jian-Qiang, Li, Jun-Tao, Huang, Ling, Zheng, Haimei, and Sun, Shi-Gang

Subjects
Engineering, Materials Engineering, Chemical Sciences, Physical Chemistry, Physical Sciences, Energy, Chemical sciences, Physical sciences
Abstract

The practical application of high-capacity Li-rich cathode materials is hindered by capacity fading and voltage decay. The capacity fading and voltage decay could be effectively overcome by using water-soluble guar gum (GG) binder instead of traditional polyvinylidene fluoride (PVDF). However, the specific role of the GG binder is not clear yet, though the GG binder can significantly improve the electrochemical performance of Li-rich cathode. To understand the effect of GG binder on the morphology, microstructure of electrode and electrode/electrolyte interfaces, ex-situ scanning electron microscope (SEM), transmission electron microscope (TEM), X-ray adsorption near edge spectroscopy (XANES), in-situ electrochemical impedance spectroscopy (EIS) were applied to comparatively study the charge-discharge processes of Li-rich Li1.2Ni0.2Mn0.6O2 cathode when using GG and PVDF as binders. The results indicate that the GG binder can prevent electrode crack and active material loss, ascribing to the strong mechanical adhesion of GG binder with active material particles and current collector. It has found that the GG binder can also induce the formation of a uniform layer on Li1.2Ni0.2Mn0.6O2 particles’ surface. As a consequence, both the electrolyte decomposition and the electrode corrosion were significantly inhibited. The strong chelation between Mn2+ and polar OH group restrain Mn ion dissolution, which contributes to surface structural transformation mitigation. The present study reveals the role of water-soluble GG binder in reducing capacity fading and voltage decay of Li-rich material and is of great importance in design functional binders for high-performance Li-rich electrodes.

Published
2020

4. Regulating lithium affinity of hosts for reversible lithium metal batteries

Author

Liu, Hao, primary, Ji, Yuchen, additional, Li, Yang, additional, Zheng, Shisheng, additional, Dong, Zihang, additional, Yang, Kai, additional, Cao, Aimin, additional, Huang, Yuxiang, additional, Wang, Yinchao, additional, Shen, Haifeng, additional, Zhang, Shao‐jian, additional, Pan, Feng, additional, and Yang, Luyi, additional

Published
2024
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7. Achievement of high-cyclability and high-voltage Li-metal batteries by heterogeneous SEI film with internal ionic conductivity/external electronic insulativity hybrid structure

Author

Zhang, Shao-Jian, Yin, Zu-Wei, Wu, Zhan-Yu, Luo, Dan, Hu, Yi-Yang, You, Jin-Hai, Zhang, Bingkai, Li, Kai-Xuan, Yan, Jia-Wei, Yang, Xue-Rui, Zhou, Xiao-Dong, Zanna, Sandrine, Marcus, Philippe, Pan, Feng, Światowska, Jolanta, Sun, Shi-Gang, Chen, Zhongwei, and Li, Jun-Tao

Published
2021
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14. Toward Shuttle‐Free Zn–I2 Battery: Anchoring and Catalyzing Iodine Conversion by High‐Density P‐Doping Sites in Carbon Host.

Author

Zhang, Peng‐Fang, Li, Jia‐Hui, Zhang, Shao‐Jian, Li, Da‐Cheng, Zeng, Su‐Yuan, Xu, Shu‐Ling, Yao, Qing‐Xia, Liu, Ling‐Yang, Ding, Lei, Li, Heng‐Xiang, Hu, Yi‐Yang, Li, Jun‐Tao, and Zhou, Yao

Subjects
CHARGE exchange, IODINE, RAMAN spectroscopy, ELECTRIC batteries, DOPING agents (Chemistry), CARBON, ENERGY storage
Abstract

Zn–iodine (I2) battery, as a promising energy storage device, especially under high I2 loading, is harassed by the shuttle effect of the soluble polyiodide intermediates. Herein, the bifunctional role of 2D carbon nanosponge with rich P‐dopant (4.2 at%) and large specific surface area (1966 m2 g−1) in anchoring I2/Ix− (x = 1, 3 or 5) and catalyzing their mutual conversion is reported. Both experiment and computational results reveal the transfer of electrons from the P‐doped site to iodine species, showing strong interfacial interaction. When being used as a host, it possesses high specific capture capacity for I2 (3.34 giodine g−1 or 1.6 mgiodine m−2) and Ix− (6.12 gtriiodide g−1 or 3.1 mgtriiodide m−2), which thus effectively suppresses the shuttle effect, supported by in situ UV–vis and Raman spectra. In addition to the strong interfacial interaction that favors iodine conversion, the P‐doped sites can also catalyze the conversion of I5− to I2, which is the rate‐determining step. Consequently, Zn–I2 batteries under a high I2 content (70 wt%) deliver high specific capacity (220.3 mAh g−1), superior Coulombic efficiency (>99%), and low self‐discharge rate; moreover, they can also operate steadily at 2 A g−1 with ignorable capacity decay for 10 000 cycles. [ABSTRACT FROM AUTHOR]

Published
2024
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15. Building fast and selective Zn ion channels for highly stable quasi-solid-state Zn-ion batteries.

Author

Kao, Chun-Chuan, Liu, Jiahao, Ye, Chao, Zhang, Shao-Jian, Hao, Junnan, and Qiao, Shi-Zhang

Abstract

Quasi-solid-state Zn-ion batteries (QSSZIBs) with gel electrolytes hold practical promise to deliver a high energy density because of their high safety and ionic conductivity of gel electrolytes. However, the sluggish and the low selectivity of Zn ion transportation leads to unsatisfactory cycle life of QSSZIBs. Herein, a Zn ion channel was constructed by confining the gel electrolyte in intercalated halloysite nanotubes. The resultant Zn ion channels show fast and highly selective Zn ion transportation and therefore suppress hydrogen evolution, Zn dendrite growth and formation of Zn4SO4(OH)6·χH2O during cycling. The QSSZIBs exhibit an excellent Zn plating/stripping coulombic efficiency of ∼99.7% in 400 cycles and over 1600 h cycle life at a current density of 1 mA cm−2 and a corresponding areal capacity of 1 mA h cm−2. Building Zn ion channels for fast and selective Zn ion transportation can direct development of QSSZIBs with high cycling stability. Based on the aforementioned advantages, the assembled Zn/i-HNTs@PAM/I2 full battery exhibits an exceptionally long cycle life of 8000 cycles at a high current density of 8 C. [ABSTRACT FROM AUTHOR]

Published
2023
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19. Glassy/Ceramic Li2TiO3/LixByOz Analogous "Solid Electrolyte Interphase" to Boost 4.5 V LiCoO2 in Sulfide‐Based All‐Solid‐State Batteries.

Author

Feng, Li, Yin, Zu‐Wei, Wang, Chuan‐Wei, Li, Zeheng, Zhang, Shao‐Jian, Zhang, Peng‐Fang, Deng, Ya‐Ping, Pan, Feng, Zhang, Bingkai, and Lin, Zhan

Subjects
SOLID electrolytes, LITHIUM-ion batteries, INTERFACIAL reactions, CERAMICS, IONIC conductivity, SOLID state batteries
Abstract

Sulfide‐based all‐solid‐state lithium‐ion batteries (ASSLIBs) are the widely recognized approach toward high safety owing to excellent ionic conductivity and nonflammable nature of solid‐state electrolytes (SSEs). However, narrow potential window of SSEs brings about serious interfacial parasitic reactions, resulting in fast degradation of the battery. Herein, a glassy/ceramic analogous solid electrolyte interface (SEI) is constructed on LiCoO2 (LCO) to enhance interfacial stability between LCO and the Li10GeP2S12 (LGPS) SSEs. In which, ceramic Li2TiO3 guarantees good mechanical toughness of analogous SEI, while glassy LixByOz reinforces the coverage to avoid parasitic reactions. Analogous SEI endows ASSLIBs with excellent cycling and rate performance under an upper charge voltage of 4.3 V with 82.3% capacity retention after 300 cycles at 0.2 C. When pushing charge voltage to 4.5 V, analogous SEI also enables desirable performance with an initial capacity of 172.7 mAh g−1 and long lifespan of 200 cycles at 0.2 C. Both experiments and theoretical computation reveal excellent stability between analogous SEI and LGPS, which endows ASSLIBs with small polarization and improved performance. This work provides an insight on glassy/ceramic analogous SEI strategy to boost the interfacial stability of ASSLIBs. [ABSTRACT FROM AUTHOR]

Published
2023
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25. Engineering the interface between LiCoO2 and Li10GeP2S12 solid electrolytes with an ultrathin Li2CoTi3O8 interlayer to boost the performance of all-solid-state batteries

Author

Wang, Chuan-Wei, primary, Ren, Fu-Cheng, additional, Zhou, Yao, additional, Yan, Peng-Fei, additional, Zhou, Xiao-Dong, additional, Zhang, Shao-Jian, additional, Liu, Wen, additional, Zhang, Wei-Dong, additional, Zou, Ming-Hua, additional, Zeng, Lei-Ying, additional, Yao, Xia-Yin, additional, Huang, Ling, additional, Li, Jun-Tao, additional, and Sun, Shi-Gang, additional

Published
2021
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30. High-Voltage LiCoO2 Material Encapsulated in a Li4Ti5O12Ultrathin Layer by High-Speed Solid-Phase Coating Process

Author

Wang, Chuan-Wei, primary, Zhou, Yao, additional, You, Jin-Hai, additional, Chen, Jian-De, additional, Zhang, Zheng, additional, Zhang, Shao-Jian, additional, Shi, Chen-Guang, additional, Zhang, Wei-Dong, additional, Zou, Ming-Hua, additional, Yu, Yang, additional, Li, Jun-Tao, additional, Zeng, Lei-Ying, additional, Huang, Ling, additional, and Sun, Shi-Gang, additional

Published
2020
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37. Novel Sulfur Host Composed of Cobalt and Porous Graphitic Carbon Derived from MOFs for the High-Performance Li–S Battery

Author

Lu, Yan-Qiu, Wu, Yi-Jin, Sheng, Tian, Peng, Xin-Xing, Gao, Zhen-Guang, Zhang, Shao-Jian, Deng, Li, Nie, Rui, Światowska, Jolanta, Li, Jun-Tao, Zhou, Yao, Huang, Ling, Zhou, Xiao-Dong, and Sun, Shi-Gang

Abstract

A composite consisting of cobalt and graphitic porous carbon (Co@GC-PC) is synthesized from bimetallic metal–organic frameworks and employed as the sulfur host for high-performance Li–S batteries. Because of the presence of a large surface area (724 m2g–1) and an abundance of macro-/mesopores, the Co@GC-PC electrode is able to alleviate the debilitating effect originating from the volume expansion/contraction of sulfur species during the cycling process. Our in situ UV/vis analysis indicates that the existence of Co@GC-PC promotes the adsorption of polysulfides during the discharge process. Density functional theory calculations show a strong interaction between Co and Li2S and a low decomposition barrier of Li2S on Co(111), which is beneficial to the following Li2S oxidation in the charge process. As a result, at 0.2C, the discharge capacity of the S/Co@GC-PC cathode is stabilized at 790 mAh g–1after 220 cycles, much higher than that of a carbon-based cathode, which delivers a discharge capacity of 188 mAh g–1.

Published
2024
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40. Novel Sulfur Host Composed of Cobalt and Porous Graphitic Carbon Derived from MOFs for the High-Performance Li–S Battery

Author

Lu, Yan-Qiu, primary, Wu, Yi-Jin, additional, Sheng, Tian, additional, Peng, Xin-Xing, additional, Gao, Zhen-Guang, additional, Zhang, Shao-Jian, additional, Deng, Li, additional, Nie, Rui, additional, Światowska, Jolanta, additional, Li, Jun-Tao, additional, Zhou, Yao, additional, Huang, Ling, additional, Zhou, Xiao-Dong, additional, and Sun, Shi-Gang, additional

Published
2018
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42. Cubic MnS–FeS2Composites Derived from a Prussian Blue Analogue as Anode Materials for Sodium-Ion Batteries with Long-Term Cycle Stability

Author

Liu, Qian, Zhang, Shao-Jian, Xiang, Cheng-Cheng, Luo, Chen-Xu, Zhang, Peng-Fang, Shi, Chen-Guang, Zhou, Yao, Li, Jun-Tao, Huang, Ling, and Sun, Shi-Gang

Abstract

Cubic N,S codoped carbon coating MnS–FeS2composites (MnS–FeS2@NSC) with a hollow structure were prepared and used as anode materials for sodium-ion batteries. MnS–FeS2@NSC exhibits excellent cycle performance and high rate capability and delivered a reversible capacity of 501.0 mAh g–1after 800 cycles at a current density of 0.1 A g–1with a capacity retention of 81%. More importantly, the MnS–FeS2@NSC anode holds long-term cycle stability; the capacity can remain 134.0 mAh g–1after 14 500 cycles at 4 A g–1. Kinetic analysis demonstrated that Na+storage follows a pseudocapacitive dominating process, which is ascribed to the origin of the outstanding rate performance of the MnS–FeS2@NSC material. The enhancement of electrochemical performance is attributed to the hollow structure and the N,S codoped carbon coating structure, which can reduce the diffusion distance for sodium ions and electrons, alleviate volume expansion during sodium-ion insertion/extraction, and retain the structural integrity effectively. Furthermore, a two-step sodiation processes with FeS2sodiation prior to MnS was demonstrated by X-ray diffraction (XRD), and the electrochemical impedance spectroscopy (EIS) spectra might indicate that the accumulation of the metallic elements in the preconversion reaction can accelerate the transfer of electrons and ions in the further conversion process.

Published
2020
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43. Fabrication of multi-shell coated silicon nanoparticles via in-situelectroless deposition as high performance anodes for lithium ion batteries

Author

Ren, Wen-Feng, Li, Jun-Tao, Zhang, Shao-Jian, Lin, Ai-Ling, Chen, You-Hu, Gao, Zhen-Guang, Zhou, Yao, Deng, Li, Huang, Ling, and Sun, Shi-Gang

Abstract

Si-based materials have been extensively studied because of their high theoretical capacity, low working potential, and abundant reserves, but serious initial irreversible capacity loss and poor cyclic performance resulting from large volume change of Si during lithiation and delithiation processes restrict their widespread application. Herein, we report the preparation of multi-shell coated Si (DS-Si) nanocomposites by in-situelectroless deposition method using Si granules as the active materials and copper sulfate as Cu sources. The ratio of Si and Cu was readily tuned by varying the concentration of copper sulfate. The multi-shell (Cu@CuxSi/SiO2) coating on Si surface promotes the formation of robust and dense SEI films and the transportation of electron. Thus, the obtained DS-Si composites exhibit an initial coulombic efficiency of 86.2%, a capacity of 1636 mAh g−1after 100 discharge–charge cycles at 840 mA g−1, and an average charge capacity of 1493 mAh g−1at 4200 mA g−1. This study provides a low-cost and large-scale approach to the preparation of nanostructured Si-metal composites anodes with good electrochemical performance for lithium ion batteries.

Published
2020
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46. Ultrahigh sulfur content up to 93 wt% encapsulated in multilayer nanoshell of V/V2O5composite to suppress shuttle effect of lithium–sulfur battery with high-performance

Author

Lin, Jin-Xia, Mo, Yu-Xue, Zhang, Peng-Fang, Li, Yu-Yang, Wu, Yi-Jin, Zhang, Shao-Jian, Gao, Zhen-Guang, Chen, Jian-De, Ren, Wen-Feng, Li, Jun-Tao, Zhou, Yao, Huang, Ling, and Sun, Shi-Gang

Abstract

Renowned for its high theoretical specific energy, lithium-sulfur (Li–S) batteries still suffer from the shuttle effect of polysulfides, the insulating nature of sulfur and severe volumetric variations, especially for cathodes with high sulfur contents. Herein, S microsphere encapsulated within a thickness-tunable multilayered thin V/V2O5nanoshell (S@V/V2O5) was explored as a high-sulfur-content cathode (up to 93 wt%) for Li–S batteries. With a polar V2O5moiety the nanoshell could physically block and chemically adsorb polysulfides, while the metallic V could assure efficient electron transfer; this multilayered and porous nanoshell could also buffer the volumetric variations of the sulfur core and facilitate Li+transportation. Such S@V/V2O5electrode with a 87 wt% sulfur content delivers high specific capacity (1403 mAh g−1) and remarkable areal initial capacity (4.4 mAh cm−2) at 0.2 C, excellent cycling stability (819 mAh g−1at 0.5 C after 300 cycles), superior high-rate capacity (804 mAh g−1at 4 C), low self-discharge (759 mAh g−1after resting 50 days) and a high coulombic efficiency above 90% in a LiNO3-free electrolyte. A current collector-free S@V/V2O5cathode with sulfur content of 93 wt% is also achieved, which yields stable discharge capacity of 1000 mAh g−1at 0.2 C after 100 cycles.

Published
2019
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48. Layered Li1.3Mn0.58Ni0.12Co0.11O2+ δ Cathode Material for Lithium-Ion Batteries with High Reversible Capacity.

Author

Deng, Ya‐Ping, Fu, Fang, Wu, Zhen‐Guo, Zhang, Tao, Yin, Zu‐Wei, Zhang, Shao‐Jian, Li, Jun‐Tao, Huang, Ling, and Sun, Shi‐Gang

Subjects
CATHODES, SOLID solutions, LITHIUM-ion batteries, X-ray diffraction, RAMAN spectroscopy, OXYGEN reduction
Abstract

Layered Li1.3Mn0.58Ni0.12Co0.11O2+ δ, a solid solution of 0.53 Li2MnO3⋅0.47 LiMn0.4Ni0.3Co0.3O2, has been successfully synthesized by using an improved solvothermal strategy and used as the cathode material of a Li-ion battery. The pure phase of the layered structure is characterized by using X-ray diffraction and Raman spectroscopy. Electrochemical tests demonstrate that as-synthesized layered Li1.3Mn0.58Ni0.12Co0.11O2+ δ exhibits high discharge capacities of 349.4, 322.4, 304.6, and 291.7 mAh g−1 at 0.1, 0.2, 0.5, and 1 C rates, respectively. Such high reversible capacities could be ascribed to the enrichment of oxygen in the materials, which was evidenced clearly by a potential plateau below 3.0 V in the discharge process and originated form the electrochemical oxygen reduction. [ABSTRACT FROM AUTHOR]

Published
2016
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49. Mechanochemical reactions between polyanionic borate and residue Li2CO3on LiCoO2to stabilize cathode/electrolyte interface in sulfide-based all-solid-state batteries

Author

Wang, Chuan-Wei, Zhang, Shao-Jian, Lin, Cong, Xue, Shida, Deng, Ya-Ping, Zhang, Bingkai, Yang, Luyi, Yao, Xiayin, Zeng, Leiying, Li, Jun-Tao, Pan, Feng, and Yin, Zu-Wei

Abstract

Sulfide-based all-solid-state Li-ion batteries (ASSLIBs) are recognized as promising next-generation batteries, due to its advantage of high energy density, high safety and high Li+diffusivity in sulfide solid electrolytes (SEs). However, interfacial instability between cathode (like LiCoO2) and sulfide SEs hinders its commercial applications. Herein, a simple mechanochemical strategy, which mechanically mixed polyanionic borate precursor and Li2CO3residue on LiCoO2(LCO) cathode with subsequent thermochemical reactions, was proposed to achieve analogous “solid electrolyte interphase (SEI)” to address such issues. The artificial SEI consists of crystalline LiBa(B3O5)3(LBBO), Li3BO3(LBO) and amorphous lithium boron oxide (Li-B-O). Therein, the former two endow high interfacial stability with SEs and ionic conductivity respectively, while the latter presented in the former interspace isolated the LCO cathode from Li10GeP2S12(LGPS) solid electrolyte and constructed a continuous interlayer with LBBO and LBO. According to the phase diagram and direct observation through TEM, it is confirmed that a suitable ratio of raw LBBO precursor and Li2CO3residue can realize an appropriate proportion of LBO to balance the interfacial stability and the diffusion of Li+in obtained artificial interlayer, which enables high cyclability and rate performance in LCO/LGPS/Li-In ASSLIBs. Specifically, SEI with 9.4 mol.% LBO boosts an initial discharge capacity of 153.8 mAh g−1(2.6–4.3 V (vs. Li/Li+), 0.1 C) with 74.4 % retention (150 cycles) and an excellent rate capability of 92.9 and 56.1 mAh g−1at 1 C and 2 C respectively. Upon increased cut-off voltage of 4.5 V, an initial 167.3 mAh g−1capacity (0.2 C) and 64.7 % retention (150 cycles) can also be achieved. The present strategy utilizing mechanochemical reactions between polyanionic borate and Li2CO3residue to construct analogous SEI will offer fresh insights to stabilize the electrode/electrolyte interface of ASSLIBs derived from diverse polyanionic-type borates or phosphates, which can be widely used in other all-solid-state batteries with various cathodes and electrolytes.

Published
2023
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