Article
Chemistry, Physical
Zhiwei Cheng, Tong Liu, Bin Zhao, Fei Shen, Haiyun Jin, Xiaogang Han
Summary: All-solid-state lithium batteries (ASSLBs) are expected to replace traditional lithium-ion batteries with their excellent safety and energy density; Organic-inorganic composite solid electrolytes (O-ICSEs) show great potential in promoting commercialization by balancing electrochemical and mechanical properties; Recent research progress on O-ICSEs based on polyethylene oxide (PEO), polyacrylonitrile (PAN) and polycarbonate matrix has focused on fillers types, structural designs and performance parameters.
ENERGY STORAGE MATERIALS
(2021)
Article
Energy & Fuels
Lin Yang, Hong Zhang, Enjie Xia, Yanmei Wu, Zhicheng Li
Summary: The use of organic/inorganic composite solid electrolytes (CSEs) in solid-state lithium batteries (LIBs) has gained significant attention due to its benefits such as good interfacial compatibility, low cost, high efficiency, and safety. In this study, Li2ZrO3, an inorganic Li-ion conductor, is used for the first time as an electrolyte filler in fabricating organic/inorganic CSE films. The CSE with 20% Li2ZrO3 powder in polyethyleneoxide (PEO) demonstrates high comprehensive performance, with a room-temperature conductivity of 6.76 x 10-6 S cm-1, electrochemical window of 4.2 V, and ionic transference number of 0.20. The introduction of Li2ZrO3 reduces interfacial resistance and enhances the stability of the CSE film. Flexible Li/CSE/NCM811 solid-state LIBs assembled with Li2ZrO3/PEO CSE show high rate capability and cycling stability.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Chemistry, Physical
Ning Lv, Qiuyitong Zhang, Yuexin Xu, Hanyang Li, Zijie Wei, Zhenhua Tao, Yadong Wang, Haolin Tang
Summary: To solve the issues of poor ionic conductivity and unstable interfacial contact in solid electrolytes (SEs), a polyethylene oxide (PEO)-based composite SE (P-P-L) with LiAlO2 (LAO) and polyacrylonitrile (PAN) additives was prepared. The use of LAO fillers increased the ionic conductivity of the electrolyte to 3.60 x 10-4 S cm-1 at 60 degrees C, while the PAN additive reduced interfacial impedance and improved battery stability. Assembled into a lithium metal battery with LiFePO4 (LFP) cathode and lithium sheet anode, the electrolyte showed a capacity retention rate of 92.0% after 200 cycles at 60 degrees C under a current density of 0.5 C.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Physical
Xuewen Zheng, Kunlin Liu, Ting Yang, Jianghai Wei, Chengyang Wang, Mingming Chen
Summary: The flexible composite polymer electrolytes developed in this study, featuring cellulose membrane and ceramic composite materials, demonstrate high ionic conductivity, a wide electrochemical window, and the ability to inhibit the growth of lithium dendrites, leading to improved cycling stability of the batteries.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Multidisciplinary
Menghan Ge, Xiaoyu Zhou, Yinping Qin, Yang Liu, Jingjing Zhou, Xiaolei Wang, Bingkun Guo
Summary: By building a composite polymer electrolyte with an amide-based matrix on porous electrodes, this research successfully inhibits the growth of lithium dendrites and improves the performance of all-solid-state lithium-ion batteries. The electrolyte exhibits good ionic conductivity, interface contact, and enhanced properties after modification.
CHINESE CHEMICAL LETTERS
(2022)
Article
Chemistry, Multidisciplinary
Yong Su, Xuedong Zhang, Congcong Du, Yang Luo, Jingzhao Chen, Jitong Yan, Dingding Zhu, Lin Geng, Shuangxu Liu, Jun Zhao, Yanshuai Li, Zhaoyu Rong, Qiao Huang, Liqiang Zhang, Yongfu Tang, Jianyu Huang
Summary: Replacing liquid electrolytes with solid polymer electrolytes (SPEs) is considered a vital approach in developing sulfur-based cathodes. This study designs an all-solid-state Li metal battery with a flexible composite cathode and electrolyte, which exhibits excellent cyclic stability and capacity retention. Cryo-transmission electron microscopy reveals the presence of blocking layers at the Li/PEO interface, while in situ optical microscopy demonstrates the reversible shuttle effect contributing to the cyclic stability.
Article
Materials Science, Multidisciplinary
Zhen-Chao Li, Teng-Yu Li, Yi-Rui Deng, Wen-Hao Tang, Xiao-Dong Wang, Jin-Lin Yang, Qiang Liu, Lei Zhang, Qiang Wang, Rui-Ping Liu
Summary: In this study, a new composite electrolyte was prepared by introducing polytetrafluoroethylene membrane into the composite electrolyte of lithium-sulfur battery. The composite electrolyte exhibited improved mechanical properties, thermal stability, and ionic conductivity, leading to excellent electrochemical performance and cycle stability of the lithium-sulfur battery.
Article
Chemistry, Physical
Hyemin Park, Eun Gyu Lee, So-Yeon Kim, Si Jin Seong, Jae Yong Suh, Mihye Wu, Yongku Kang, Si-Young Choi, Yongseon Kim, Sungho Choi
Summary: Promising soft-rigid and free-standing composite electrolytes were developed by mixing Sr-doped LiZr2(PO4)(3) compound with a PEO-based polymer, showing good ionic conductivity and cycling stability for solid-state Li+-ion rechargeable batteries operating at room temperature.
ACS APPLIED ENERGY MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Su-Yeon Jung, Rajesh Rajagopal, Kwang-Sun Ryu
Summary: The study involved the preparation of (100-x)Li7P3S11-x Li3SI solid electrolyte composites by mechanical ball milling process, which effectively influenced the ionic conductivity and electrochemical properties of Li7P3S11 solid electrolyte. The addition of Li3SI improved the stability and capacity retention of the Li7P3S11 electrolyte, thus enhancing electrochemical performance.
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
(2021)
Article
Chemistry, Physical
Yonghui Wu, Tianyu Zhu, Yifan Lv, Jing Fang, Shihua Dong, Shuyu Yao
Summary: This study prepares a composite electrolyte with high ion conductivity and high performance. The electrolyte combines a polymer with a ceramic material, reducing crystallinity and promoting rapid Li+ migration. Additionally, it introduces new ion conduction channels, further improving ion conductivity. The composite electrolyte exhibits excellent cycling stability and capacity retention in lithium metal batteries.
Article
Materials Science, Composites
Dorsasadat Safanama, Sheau Wei Chien, Kristoffer Jenssen, Ming Yan Tan, Ning Ding, Derrick Wen Hui Fam
Summary: In the pursuit of more reliable battery systems for electric vehicles, researchers are focusing on multifunctional energy storage devices. This study incorporates high modulus polyether ether ketone (PEEK) fibers into a lithium-ion conducting poly(ethylene) oxide matrix to improve mechanical strength and lithium ion transport pathways. The composite solid polymer electrolyte (CSPE) achieved a significantly higher Young's modulus and successful cycling of Lithium metal batteries with high capacity retention. This approach provides a straightforward way to develop mechanically strong and highly conducting electrolytes for future batteries.
COMPOSITES SCIENCE AND TECHNOLOGY
(2023)
Article
Polymer Science
Qinghui Zhang, Hong Huang, Tianmeng Liu, Yan Wang, Junrong Yu, Zuming Hu
Summary: A solid polymer electrolyte (SPE) based on a molecular composite of aromatic polybenzimidazole (PBI) and PEO is proposed to address the issues of low ionic conductivity and potential safety hazards in PEO-based electrolytes. The strong intermolecular interactions effectively inhibit PEO crystallization and significantly improve the modulus, strength, and ionic conductivity of the electrolyte. Additionally, thermal stability and flame retardancy are also enhanced, making the PBI/PEO electrolyte a promising candidate for safe and high-performance all-solid-state lithium ion batteries.
Article
Chemistry, Physical
X. Song, T. H. Zhang, R. Z. Fan, J. Biao, S. H. Huang, J. Travas-Sejdic, W. Gao, P. Cao
Summary: In this work, a composite solid-state electrolyte (CSSE) was developed by blending highly ionically conductive LLZTNO fillers with a poly(ethylene oxide) matrix. The LLZTNO fillers decreased the crystallinity of the PEO and provided additional pathways for lithium-ion transport. The CSSE exhibited improved ionic conductivity due to the immobilization of TFSI- anions and increased mobility of Li ions. The PEO-LiTFSI-10% LLZTNO CSSE showed the highest conductivity and a wide voltage window. Symmetric cells using the CSSE demonstrated long-term stability, and solid-state LFP/PL-LLZTNO10%/Li cells showed good performance at elevated temperatures.
SOLID STATE IONICS
(2023)
Article
Electrochemistry
Samuel Adjepong Danquah, Jacob Strimaitis, Clifford F. Denize, Sangram K. Pradhan, Messaoud Bahoura
Summary: Garnet solid-state electrolyte has shown potential in improving ion conductivity, but suffers from interface resistance. By preparing a composite material, the interfacial resistance can be reduced, enhancing ion conduction and achieving outstanding electrochemical stability.
Article
Chemistry, Physical
Xin Song, Tianhang Zhang, Saifang Huang, Jinshuo Mi, Yudong Zhang, Jadranka Travas-Sejdic, Adrian Peter Turner, Wei Gao, Peng Cao
Summary: This study constructed a high-safety composite solid-state electrolyte (CSSE) by embedding high ionic conductivity garnet type Li6.5La3Zr1.5Ta0.1Nb0.4O12 (LLZTNO) powder into a polyvinylidene fluoride (PVDF) matrix. The CSSE with 10% LLZTNO achieved an ionic conductivity of 1.05 x 10-4 S cm-1 and extended electrochemical window to 4.80 V vs Li/Li+. The evolution and composition of the SEI layer were characterized using in-situ optical microscopic observation, X-ray photoelectron spectroscopy, and cryogenic electron microscopy (cryo-EM). When paired with an NCM811 cathode, the CSSE batteries exhibited good rate cycling performance and maintained discharge capacity at 137.1 and 91.2 mAh g-1 at 0.3C and 2C after 80 and 100 cycles. The needle penetration test further demonstrated the superior safety and potential applications of PVDF-based room-temperature CSSE batteries.
JOURNAL OF POWER SOURCES
(2023)
Article
Materials Science, Multidisciplinary
Zhaowei Zeng, Lei Yi, Jianwei He, Qian Hu, Yucong Liao, Yadong Wang, Wenbin Luo, Mu Pan
JOURNAL OF MATERIALS SCIENCE
(2020)
Article
Chemistry, Physical
Jianwei He, Yucong Liao, Qian Hu, Zhaowei Zeng, Lei Yi, Yadong Wang, Huijuan Lu, Mu Pan
JOURNAL OF POWER SOURCES
(2020)
Article
Chemistry, Physical
Yucong Liao, Jianwei He, Lei Yi, Yayun Tang, Xiang Li, Ning Lv, Yuexin Xu, Hanyang Li, Yadong Wang
Summary: The study investigates the electrochemical mechanisms and kinetics of a polyimide anode material for lithium-ion batteries using electrochemical impedance spectroscopy (EIS), focusing on Ohmic impedance, solid-electrolyte-interphase impedance, and charge-transfer resistance as key parameters. Results show that charge-transfer and SEI resistances are crucial factors affecting the electrochemical performance of the polyimide anode material. Increasing temperature enhances the total electrochemical kinetics of the material, improving its performance at elevated temperatures.
ACS APPLIED ENERGY MATERIALS
(2021)
Article
Energy & Fuels
Lei Yi, Zhaowei Zeng, Yucong Liao, Yayun Tang, Xiang Li, Ning Lv, Yuexin Xu, Hanyang Li, Yadong Wang
Summary: Transition metal borides Co-B and Co-Ni-B are prepared using a simple chemical reduction method and used to create a new all-boride aqueous solution battery. This battery demonstrates excellent electrochemical performance and extreme frost tolerance, making it suitable for use in cold weather conditions.
Article
Energy & Fuels
Yayun Tang, Zhaowei Zeng, Lei Yi, Shaoshan Zhu, Xiang Li, Hanyang Li, Ning Lv, Yuexin Xu, Qiuyitong Zhang, Yadong Wang
Summary: Transition-metal/heteroatom-doped carbon exhibits exceptional ORR catalytic activity in alkaline electrolytes. Phosphorus-rich porous polyaniline gel is used as a precursor to synthesize high-dispersion iron-doped graphite catalysts. Fe-N/P/C-850, synthesized at a heat treatment temperature of 850 degrees Celsius, demonstrates the highest ORR activity and electrochemical stability.
Article
Energy & Fuels
Bin Liu, Songlin Xue, Shifeng Tan, Duxin Zhang, Zhao Deng, Hongfei Pan, Wenmao Tu, Ruiming Zhang, Haining Zhang, Yadong Wang
Summary: This work reports the fabrication of Co3O4@CoP hollow nanoparticles embedded in N, S-co-doped reduced graphene oxide substrates using a two-step calcination method. The synthesized electrocatalyst shows comparable hydrogen evolution reaction overpotential to Pt/C catalysts and a high oxygen evolution reaction overpotential similar to that of IrO2. These composite catalysts have great potential as bifunctional catalysts for water splitting technology, overcoming the limitation of commercial catalysts with single catalytic performance.
Article
Chemistry, Physical
Xiang Li, Jianwei He, Yucong Liao, Shaoshan Zhu, Yayun Tang, Hanyang Li, Ning Lv, Yuexin Xu, Yadong Wang
Summary: In this study, a conjugate carbonyl polyimide and nano-silicon composite was designed and synthesized to address the challenges of rapid capacity fading and complicated electrode material preparation in silicon-based electrodes for lithium-ion batteries. This composite exhibited a relative high specific capacity and excellent cycling stability, as well as improved electrode kinetics and electrochemical performance.
JOURNAL OF POWER SOURCES
(2022)
Article
Energy & Fuels
Duxin Zhang, Guoliang Liu, Shifeng Tan, Hongfei Pan, Wenmao Tu, Haining Zhang, Yadong Wang
Summary: In this study, nitrogen-doped silica carbon composites with a carbon-coated structure were synthesized, which showed high first discharge capacity and ultra-long lifespan. The degradation of performance during the initial phase of cycles was attributed to the formation of an SEI layer and insufficient electrolyte penetration.
Article
Energy & Fuels
Yuexin Xu, Qiuyitong Zhang, Ning Lv, Hanyang Li, Zijie Wei, Yadong Wang, Haolin Tang
Summary: In this study, a polyimide binder with an introduced carboxyl group (PI-COOH) was developed, which effectively bonded with the oxide layer on the silicon surface, improving interface stability and reducing damage to the solid electrolyte interface film during cycling. With the excellent mechanical and thermodynamic properties of polyimide, the prepared PI-COOH binder significantly improved the cycling stability and rate performance of the silicon anode.
Article
Chemistry, Multidisciplinary
Hanyang Li, Yuexin Xu, Ning Lv, Qiuyitong Zhang, Xiaolian Zhang, Zijie Wei, Yadong Wang, Haolin Tang, Hongfei Pan
Summary: The development of polymer electrolyte membrane water electrolysis is limited by high costs of noble metals and inadequate stability due to slow reaction kinetics of the oxygen evolution reaction and restrictions of strongly acidic operating environments. To improve noble metal utilization, Ti-doped SnO2 is used as a carrier to support active species IrO2. The introduction of Ti element inhibits grain growth and improves electrical conductivity of SnO2. Electrochemical tests show that 40 wt% IrO2/TSO has the best mass-normalized charge (231.24 C g-1 IrO2) and current density (714.85 A g-1 IrO2) with an overpotential of only 271 mV at 10 mA cm-2, attributed to the outstanding dispersion effect of Ti-doped SnO2 and synergy between active species and Ti element introduction. The advantages provided by Ti-doped SnO2 support offer an alternative solution to reduce noble metal catalyst costs by improving catalytic activity and stability.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2023)
Article
Energy & Fuels
Duxin Zhang, Meilin Fan, Shifeng Tan, Hongfei Pan, Wenmao Tu, Haining Zhang, Yadong Wang
Summary: The SiO(x)/C composite, as a silicon-based material, is a promising alternative anode for next-generation lithium-ion batteries. The porous SiO0.71C1.95N0.47 anode material with robust Si-O skeletons wrapped by carbon layers exhibits excellent initial capacity, coulombic efficiency, and cycle life.
Article
Energy & Fuels
Zhen Zhu, Shang Li, Lichang Zhang, Xin Lu, Pengtao Huang, Yadong Wang, Mu Pan
Summary: In this study, poly(1,5-diaminoanthraquinone) (P15DAAQ) was deposited on carbon fiber of gas diffusion backing (GDB) to improve the water management ability of the gas diffusion layer (GDL). The morphology of carbon fibers and the pore structure of GDBs were characterized. Performance and water management capabilities of proton exchange membrane fuel cells were studied. The results show that P15DAAQ-GDL exhibits better oxygen mass transfer and water management capabilities than PTFE-GDL.
Article
Chemistry, Physical
Ning Lv, Qiuyitong Zhang, Yuexin Xu, Hanyang Li, Zijie Wei, Zhenhua Tao, Yadong Wang, Haolin Tang
Summary: To solve the issues of poor ionic conductivity and unstable interfacial contact in solid electrolytes (SEs), a polyethylene oxide (PEO)-based composite SE (P-P-L) with LiAlO2 (LAO) and polyacrylonitrile (PAN) additives was prepared. The use of LAO fillers increased the ionic conductivity of the electrolyte to 3.60 x 10-4 S cm-1 at 60 degrees C, while the PAN additive reduced interfacial impedance and improved battery stability. Assembled into a lithium metal battery with LiFePO4 (LFP) cathode and lithium sheet anode, the electrolyte showed a capacity retention rate of 92.0% after 200 cycles at 60 degrees C under a current density of 0.5 C.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Electrochemistry
Qiuyitong Zhang, Yuexin Xu, Ning Lv, Hanyang Li, Zijie Wei, Tian Tian, Yadong Wang, Haolin Tang
Summary: A simplified and greener process for obtaining polyimide anode materials for lithium-ion battery electrodes in situ is developed. The process reduces processing steps and treatment duration, and decreases energy consumption for heat treatment, solvent evaporation, and organic solvent use. The polyimide particles synthesized in situ on the electrode surface exhibit a sea urchin-like structure, leading to improved electrochemical kinetics, discharge capacity, and cycling performance compared to materials obtained using traditional procedures.
ELECTROCHIMICA ACTA
(2023)
