Article
Chemistry, Multidisciplinary
Wuxing Hua, Huan Li, Chun Pei, Jingyi Xia, Yafei Sun, Chen Zhang, Wei Lv, Ying Tao, Yan Jiao, Bingsen Zhang, Shi-Zhang Qiao, Ying Wan, Quan-Hong Yang
Summary: Selective catalysis is proposed as a fundamental remedy for the shuttle effect of soluble lithium polysulfides in Li-S batteries, benefiting from its ability to decelerate the accumulation of polysulfides and enhance battery performance, as experimentally and theoretically demonstrated in this study.
ADVANCED MATERIALS
(2021)
Article
Chemistry, Physical
Keke Guan, Yingjie Yu, Haipeng Liu, Jin Luo, Wen Lei, Haijun Zhang
Summary: In this study, a tube-in-fiber structure is fabricated by confining carbon nanotubes (CNTs) in Co-doped hollow multi-channel carbon fibers (MCCFs-Co) as a host material for sulfur in lithium sulfur batteries. The composite with hierarchically porous structure and high specific surface area demonstrates excellent electrolyte wettability and rapid Li ion diffusion rate. The addition of CNTs and Co nanoparticles effectively improves the absorption capability and catalytic conversion activity of the composite towards lithium polysulfides, leading to enhanced redox kinetics and alleviated shuttle effect. As a result, the cathode based on MCCFs-Co/CNTs/S exhibits remarkable cycling stability (843 mAh g-1 after 150 cycles at 0.5 C) and outstanding rate capability (698 mAh g-1 after 300 cycles at 2.0 C).
APPLIED SURFACE SCIENCE
(2023)
Article
Chemistry, Physical
Zhao Kong, Hongyuan Xu, Guanghui Xu, Siyu Jin, Yihong Tong, Jiawei Li, Yilu Bai, Hong Jin, Weiwei Cai, Hui Xu
Summary: A hollow carbon decorated with cobalt nanoparticles and interconnected by nitrogen doped carbon nanotubes (Co-NCNT@HC) is developed to address the issues of volume change of sulfur and shuttle effect of lithium polysulfides in Li-S battery. The uniformly distributed nitrogen and cobalt nanoparticles in Co-NCNT@HC enhance the chemical adsorption capability and speed of intermediates transformation, effectively inhibiting the loss of lithium polysulfides. The unique structure of hollow carbon spheres interconnected by carbon nanotubes provides structural stability and electrical conductivity. The Li-S battery enhanced by Co-NCNT@HC exhibits high initial capacity and excellent cyclic stability.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Review
Chemistry, Multidisciplinary
Xiaoya Kang, Tianqi He, Rong Zou, Shengtao Niu, Yingxia Ma, Fuliang Zhu, Fen Ran
Summary: This article provides a comprehensive summary and in-depth discussion of the solvation mechanism, existing forms of polysulfides, and factors influencing polysulfides species. Based on the size of polysulfides, strategies for using size effect in different parts of the battery are elaborated. Additionally, a design concept of materials pore size is proposed to meet the requirements of inhibiting polysulfides shuttle using size effect.
Article
Chemistry, Physical
Jing Liu, Mengyuan Xue, Yuhao Zhou, Zhen-Yu Wang, Bohai Zhang, Sheng Liu, Tianying Yan, Xue-Ping Gao
Summary: In this study, a graphene-PTCDA composite was developed as the host material for sulfur cathodes in lithium-sulfur batteries. The conjugated benzene rings and anhydride group in PTCDA tightly absorbed on graphene through pi-pi stacking, enhancing the polarity and conductivity of the composite. Moreover, PTCDA captured dissolved polysulfides on the sulfur cathode, effectively suppressing the shuttle effect and improving the electrochemical performance.
ACS APPLIED ENERGY MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Peirong Lin, Yuheng Qi, Daying Guo, Xueyu Wang, Guoyong Fang, Xi'an Chen, Shun Wang
Summary: In this study, the effect of different metal valences in cobalt-based organic framework compounds on the sulfur reaction kinetics in lithium-sulfur batteries was investigated. Two organic framework compounds, Co-ZIF and CoTBP(III), were constructed as functional intercalation separators and their effects on improving the reaction kinetics of polysulfides and inhibiting the shuttle effect were explored. Experiments and theoretical calculations showed that Co-II exhibited the best catalytic activity, attributed to its strong adsorption energy for polysulfides and higher Fermi level compared to Co-III. The Co-ZIF catalytic layer achieved a discharge specific capacity of 772.7 mAhg(-1) at a high current density of 5C, with an attenuation rate of 0.092% per cycle after 720 cycles and coulombic efficiency above 92%.
Article
Chemistry, Multidisciplinary
Peirong Lin, Yuheng Qi, Daying Guo, Xueyu Wang, Guoyong Fang, Xi'an Chen, Shun Wang
Summary: In this study, we investigated the effect of metal valences in different cobalt-based organic framework compounds on the kinetics of sulfur reaction in lithium-sulfur batteries. Two organic framework compounds, Co-ZIF and Co-TBP(III), with different valences were constructed as intercalation separators of LSBs and their effects on improving the reaction kinetics of polysulfides and inhibiting the shuttle effect were explored. Experiments and theoretical calculations showed that Co-II exhibited the best catalytic activity, mainly due to its strong adsorption energy for polysulfides and higher Fermi level compared to Co-III. The discharge specific capacity of Co-ZIF as the catalytic layer of LSBs reached 772.7 mAh g(-1) at a high current density of 5 C, with a cycle attenuation rate of only 0.092% and a coulombic efficiency above 92% after 720 cycles.
Article
Chemistry, Physical
Aashish Joshi, Sumana Bandyopadhyay, Amit Gupta, Rajiv K. Srivastava, Bhanu Nandan
Summary: In this study, lead zirconate titanate (PZT) nanofibers are used as polysulfide immobilizer in Lithium-sulfur batteries (LSB). The unique domain structure and anisotropic properties of ferroelectric PZT nanofibers inhibit the diffusion of polysulfides from the cathode through dipole-dipole interaction, and chemically bind the polysulfides through lithiophilic and sulfiphilic heteroatoms, improving the electrochemical performance of LSB.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Physical
Panpan Ding, Tianbao Yan, Kunming Li, Qianqian Wu, Xiaohang Zhu, Huifang Chen, Anqi Ju
Summary: This study successfully addressed the challenges of volume expansion and electrolyte permeation in lithium-sulfur batteries by preparing hollow multichannel carbon fibers. Incorporation of titanium oxide and boron/phosphorus doping effectively improved the adsorption capacity and electronic conductivity of the cathodes, resulting in high specific capacity and excellent cycling performance.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Review
Chemistry, Multidisciplinary
Zhenkang Wang, Ya Li, Haoqing Ji, Jinqiu Zhou, Tao Qian, Chenglin Yan
Summary: This article discusses the influence of the morphology of lithium polysulfides (LPSs) on the performance of lithium-sulfur batteries and summarizes the earlier studies on inhibiting LPS dissolution as well as the recent viewpoint of promoting LPS dissolution. The article provides an overview of the historical background, strategies, advantages, and disadvantages of the two views, and predicts the future morphology of LPSs in lithium-sulfur batteries based on existing research.
ADVANCED MATERIALS
(2022)
Review
Chemistry, Physical
Zhengyuan Gao, Zhiyang Xue, Yingchun Miao, Bin Chen, Jinshan Xu, Hongqi Shi, Tao Tang, Xiangyu Zhao
Summary: A functional separator composed of TiO2@surface-modified carbon nanotubes composite on polypropylene (PP) separator is developed to effectively block the shuttle effect of polysulfides in lithium-sulfur batteries. The as-assembled Li-S batteries using this functional separator exhibit considerably enhanced reversible capacity, cycling performance, and reaction kinetics.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Multidisciplinary
Qingyi Zheng, Qing Hou, Zhenghao Shu, Guoqing Liu, Xiaoxiang Fan, Kun Wang, Jingmin Fan, Ruming Yuan, Mingsen Zheng, Quanfeng Dong
Summary: By introducing a functional organic molecule to couple with polysulfide intermediates, a fast internal cycle of promotors has been created to promote the slow external cycle of sulfur conversions. This strategy not only greatly improves the sulfur-electrode process kinetics and eliminates the shuttle effect, but also modifies the morphology of the final discharge product into a uniform covering film, leading to excellent rate performance and cycling stability of lithium-sulfur batteries.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Physical
Donghong Duan, Kaixin Chen, Chongzhi Xing, Xiaoqiang Wang, Xianxian Zhou, Shibin Liu
Summary: By simultaneous phosphating and sulfurating, a spindle-shaped CoP-Co3S4 heterostructure sulfur cathode substrate is created, which achieves efficient capture-diffusion-transformation of polysulfides at the interface. The CoP accelerates the redox kinetics toward polysulfide conversion, and the Co3S4 has a considerable ad-sorption power toward polysulfides. The CoP-Co3S4 @S cathode battery achieves a high initial capacity of 1516.9 mAh g-1 at 0.2 C and maintains that capacity after 100 cycles at 750.1 mAh g-1. After 300 cycles, even the 565.1 mAh g-1 specific capacity can be attained at 1 C.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Materials Science, Multidisciplinary
Pengbiao Geng, Meng Du, Xiaotian Guo, Huan Pang, Ziqi Tian, Pierre Braunstein, Qiang Xu
Summary: This study demonstrates that incorporating Cu2+ into Al-MOF to form bimetallic Al/Cu-MOF as a sulfur host material can improve the adsorption capacity to lithium polysulfides. The melt-diffusion process to obtain sulfur-containing Al/Cu-MOF-S shows improved cyclic performance in Li-S batteries.
ENERGY & ENVIRONMENTAL MATERIALS
(2022)
Article
Chemistry, Physical
Xianyu Liu, Honghong Rao, Kanjun Sun, Hao Gou, Taotao Lu, Yitai Qian
Summary: The composite structure of WS2@NG can effectively inhibit the shuttle effect of lithium polysulfide and improve the performance of lithium-sulfur batteries.
APPLIED SURFACE SCIENCE
(2022)
Article
Nanoscience & Nanotechnology
Xi Zhou, Peng Zeng, Hao Yu, Changmeng Guo, Changqing Miao, Xiaowei Guo, Manfang Chen, Xianyou Wang
Summary: The study introduced double transition metal oxide TiNb2O7 (TNO) nanoparticles on activated carbon cloth (ACC) to enhance the catalytic effect on sulfur conversion reaction. This novel flexible self-supporting structure not only improved the redox reaction kinetics of sulfur but also effectively inhibited the shuttle effect of lithium polysulfides (LiPSs), showing impressive electrochemical performance at high discharge rates.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Engineering, Environmental
Peng Zeng, Hao Yu, Xi Zhou, Ziyi Zhou, Bin Li, Manfang Chen, Hongbo Shu, Ying Wang, Baobao Chang, Xiaowei Guo, Xianyou Wang
Summary: The synthesis of high-efficiency sulfur reduction reaction catalyst CNCO significantly improves the cycle stability and reaction kinetics of lithium-sulfur batteries, enhancing the initial specific capacity and reversible capacity of the battery while reducing fading rate.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Physical
Changfei Zou, Li Yang, Kaili Luo, Lei Liu, Xiyuan Tao, Lingguang Yi, Xianhu Liu, Zhigao Luo, Xianyou Wang
Summary: By utilizing composite polymer electrolytes as the interface, the interfacial impedance and rapid growth of lithium dendrites between sulfide solid electrolyte and lithium metal in solid-state lithium metal batteries can be effectively reduced, enhancing the stability of battery performance. This cell structure design based on interface modification provides good prospects for the commercial application of all-solid-state lithium metal batteries.
ACS APPLIED ENERGY MATERIALS
(2022)
Article
Green & Sustainable Science & Technology
Jiao Peng, Wangwu Li, Zhenyu Wu, Hui Li, Peng Zeng, Gairong Chen, Baobao Chang, Xiaoyan Zhang, Xianyou Wang
Summary: A composite architecture based on nano Si embedded into three-dimensional porous N-doped carbon and combined with carbon nanotubes was designed and constructed, achieving significant improvement in the electrochemical performance of the Si anode for lithium-ion batteries.
SUSTAINABLE MATERIALS AND TECHNOLOGIES
(2022)
Article
Chemistry, Physical
Peng Zeng, Jiao Peng, Hao Yu, Xi Zhou, Kaifu Wang, Jiali Liu, Ziyi Zhou, Manfang Chen, Changqing Miao, Xiaowei Guo, Baobao Chang, Xianyou Wang
Summary: This study presents a strategy to enhance the performance of LieS batteries by constructing a highly graphitized and Fe/N enriched carbon tube as a sulfur host. The Fe/N-g-CT/S cathode exhibits a high initial specific capacity and a low fading rate, even with high sulfur loading and lean electrolyte consumption.
Article
Energy & Fuels
Jiao Peng, Wangwu Li, Zhenyu Wu, Hui Li, Peng Zeng, Juan Yang, Sihua Hu, Gairong Chen, Baobao Chang, Xianyou Wang
Summary: SiOx/C nanospheres prepared by a hydrothermal method and subsequent calcination process show a uniform distribution of SiOx in carbon, effectively addressing the issues of low conductivity and large volume expansion. Introducing 3-aminophenol and formaldehyde further regulates the carbon content and improves the electrical conductivity.
Article
Chemistry, Physical
Xiaoyi Chen, Lingguang Yi, Changfei Zou, Jiali Liu, Jun Yu, Zihao Zang, Xiyuan Tao, Zhigao Luo, Xiaowei Guo, Gairong Chen, Baobao Chang, Yongqiang Shen, Xianyou Wang
Summary: Gel polymer electrolyte (GPE) with good flexibility, high mechanical strength, high ionic conductivity, and self-repairing capability has been proposed. It also exhibits excellent interfacial stability with the electrode, making it suitable for high-performance lithium-ion batteries.
ACS APPLIED ENERGY MATERIALS
(2022)
Article
Nanoscience & Nanotechnology
Peng Zeng, Ziyi Zhou, Bin Li, Hao Yu, Xi Zhou, Gairong Chen, Baobao Chang, Manfang Chen, Hongbo Shu, Jincang Su, Xianyou Wang
Summary: This study investigates the catalytic mechanism of defect-enriched VS2-x nanosheets as catalysts for Li-S batteries. It demonstrates that the lithiation process of VS2-x catalysts can enhance the performance of Li-S batteries by promoting the dissociation process of S-6(2-) to S-3(center dot-) through the high catalytic activity of Li_yVS2-x intermediates. Li-S batteries with a C/VS2-x/S cathode exhibit high reversible capacity and good cycling performance, while CC@VS2-x/S cathode shows high sulfur loading and stable cycle performance.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Energy & Fuels
Hao Yu, Xi Zhou, Peng Zeng, Changmeng Guo, Hong Liu, Xiaowei Guo, Baobao Chang, Manfang Chen, Jincang Su, Xianyou Wang
Summary: By introducing CeO2 into cellulose graphene aerogel (CGA), a 3D interconnected structure as the host of Li2S, it provides abundant three-phase boundary, restrains the polysulfide shuttle effect, and improves the electrochemical performance of Li-S battery.
Article
Chemistry, Physical
Xi Zhou, Peng Zeng, Hao Yu, Jiali Liu, Changqing Miao, Manfang Chen, Jincang Su, Xianyou Wang
Summary: In this study, a hollow tubular MnCo2S4-CoS1.097 heterostructure composite is used as an effective sulfur host to address the shuttle effect of higher-order lithium polysulfide (LiPSs) in lithium-sulfur batteries. The assembled cathode based on this heterostructure host exhibits excellent electrochemical performance.
ACS APPLIED ENERGY MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Peng Zeng, Xi Zhou, Jiao Peng, Xuelin Huang, Baobao Chang, Gairong Chen, Manfang Chen, Liping Zheng, Yong Pei, Jincang Su, Xianyou Wang
Summary: This study designs defect-enriched Co9S8 hollow prisms as both S host and catalyst material for Li-S batteries, achieving strong adsorption and fast conversion of polysulfides. The experiment shows that the material can effectively promote the generation of S-3(center dot-) radicals and realize fast conversion through a unique reaction pathway. Under certain conditions, the cell with this material exhibits high capacity and cycling stability, which is of great significance for the development of Li-S batteries.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Energy & Fuels
Jiali Liu, Lingguang Yi, Peng Zeng, Changfei Zou, Xiaoyi Chen, Xiyuan Tao, Xiaolin Liu, Li Yang, Zihao Zang, Baobao Chang, Yongqiang Shen, Xianyou Wang
Summary: Introducing point defects in the solid-state electrolyte can significantly enhance the ionic conductivity of all-solid-state fluoride-ion batteries, leading to improved battery performance.
Article
Chemistry, Organic
Jinwu Zhao, Zhigao Luo, Yipeng Liu, Jingxiu Xu, Zunnan Huang, Wenfang Xiong
Summary: Visible light mediated oxidation of alcohols to ketones or aldehydes is achieved using anthraquinone as a catalyst, DMSO as an oxidant, and irradiation at 430-440 nm at room temperature. The study investigates key parameters such as irradiating wavelength, reaction medium, and photocatalyst. The protocol offers a transition metal-free and mild reaction conditions for the oxidation of alcohols.
Article
Chemistry, Physical
Xiyuan Tao, Li Yang, Jiali Liu, Zihao Zang, Peng Zeng, Changfei Zou, Lingguang Yi, Xiaoyi Chen, Xiaolin Liu, Xianyou Wang
Summary: Garnet-type Li7La3Zr2O12 (LLZO) is a solid-state electrolyte with high Li+ conductivity and stability. Ga-LLZO, in particular, achieves high ionic conductivity and can be prepared using a rapid ultra-high-temperature sintering method. The Ga-LLZO ceramic electrolyte exhibits high relative density, good ionic conductivity, and excellent electrochemical stability and interfacial compatibility against Li metal.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Physical
Mengjie Liu, Mulan Qin, Guozhao Fang, Shuquan Liang, Xianyou Wang, Zhigao Luo
Summary: A gel electrolyte, polyacrylamide and 2-acrylamido-2-methylpropane sulfonic acid containing Zn2+ (ZnPAM-AMPS), was synthesized to suppress the dissolution of layered vanadium-based materials (VBMs) in the electrolyte, leading to improved cycle life of zinc ion batteries.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)