Article
Chemistry, Multidisciplinary
Jing Xia, Na Zhang, Yijun Yang, Xing Chen, Xi Wang, Feng Pan, Jiannian Yao
Summary: Herein, an ingenious Li-deintercalation/doping strategy is developed to synthesize lanthanide-doped LiCoO2 with improved cycling stability. Experimental results show that the lattice strain tuned by lanthanide contraction plays a critical role in the structure stability of LiCoO2. Lu-doped LiCoO2 exhibits the best cycling stability.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Engineering, Environmental
Wenbiao Liang, Feng Jin, Yin Zhao, Liyi Shi, Quan Liu, Zhuyi Wang, Yi Wang, Meihong Zhang, Jiefang Zhu, Shuai Yuan
Summary: The single-crystal LiNi0.8Mn0.1Co0.1O2 (SC-NCM811) cathode with electro-chemo-mechanically compliant microstructure was successfully synthesized by microfluidic technology combined with the solid-state lithiation process. The optimized SC-NCM811 cathode has a small grain size, low cation mixing, and well layered structure, showing good electrochemical performance. Microfluidic technology is expected to provide a new strategy for preparing single-crystal Ni-rich cathode materials, which may extend to the commercial application of other cathode materials.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Physical
Binbin Chu, Ruoyu Xu, Guangxin Li, Jinyu Chen, Zijian Xu, Tao Huang, Bo Wang, Aishui Yu
Summary: In this study, a LiNi0.92Co0.04Mn0.04O2 single-crystal cathode material with an average particle size of 1.69 μm was prepared via a temperature fluctuation method combined with B and W surface modification. The as-formed Li-B-O and Li2WO4 lithium ion conductors successfully enhanced the discharge capacity and cycle retention of the material by facilitating lithium ion diffusion. The surface modification also constructed a uniform boron-rich cathode/electrolyte interface layer, protecting the particles from electrolyte erosion and improving the homogeneity of chemical states of Ni within the particles after long cycling.
JOURNAL OF POWER SOURCES
(2023)
Article
Chemistry, Analytical
Yuhang Tian, Yutong Liu, Feng Li, Yanyun Sun, Xianqi Wei, Peiyu Hou
Summary: This study systematically investigates the performance of single-crystal layered ternary cathodes under similar charge-discharge conditions. The results show that cathodes with relatively low Ni content and higher cut-off voltages can provide better cycling life and high-rate capacities.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2022)
Article
Energy & Fuels
Yadong Wang, Wenhua Cheng, Wei Wang, Yudai Huang
Summary: Dual-site doping of Cu2+ in single-crystal LiNi(0.5)Co(0.2)Mn(0.3)O(2) improves the high voltage stability and rate performance of the material, with a capacity retention rate of 82.2% after 200 cycles. This work provides a guideline for stabilizing the ontological structure of single-crystal cathode materials.
Article
Chemistry, Physical
Ryan Brow, Anthony Donakowski, Alex Mesnier, Drew J. Pereira, K. Xerxes Steirer, Shriram Santhanagopalan, Arumugam Manthiram
Summary: Nickel-rich cathode materials, despite being a promising choice for electric vehicles, face challenges related to long-term cycle life retention and air stability. This study investigates the use of surface treatments, specifically the coating of LiNi0.9Mn0.05Al0.05O2 cathode materials with lithium phosphate, to improve their performance. The results show that low concentration phosphoric acid coating leads to delayed voltage decay and enhanced discharge capacity during high-voltage cycling.
ACS APPLIED ENERGY MATERIALS
(2022)
Review
Chemistry, Multidisciplinary
Jianping Yan, Edison Huixiang Ang, Yang Yang, Yufei Zhang, Minghui Ye, Wencheng Du, Cheng Chao Li
Summary: This review discusses the design strategies and challenges of high-voltage rechargeable zinc-ion batteries (ZIBs), introduces recent advances in high-voltage cathode materials, and explores strategies to increase cathode operating voltage and factors influencing voltage in redox reactions.
ADVANCED FUNCTIONAL MATERIALS
(2021)
Review
Chemistry, Physical
Weihao Zeng, Fanjie Xia, Weixi Tian, Fei Cao, Junxin Chen, Jinsong Wu, Rongguo Song, Shichun Mu
Summary: This study emphasizes the advantages of single-crystal materials over polycrystals and their unique mechanisms in terms of electrochemical, thermal, and mechanical properties. Practical challenges of single-crystal materials towards practical applications are identified, along with hopeful strategies for overcoming these issues. Based on these characteristics and approaches, future directions are also discussed.
CURRENT OPINION IN ELECTROCHEMISTRY
(2022)
Article
Chemistry, Physical
Shuoqing Zhao, Ziqi Guo, Kang Yan, Shuwei Wan, Fengrong He, Bing Sun, Guoxiu Wang
Summary: The article summarizes various strategies for improving the performance of layered lithium-rich cathode materials for next-generation high-energy-density lithium-ion batteries. These strategies include surface engineering, elemental doping, composition optimization, structure engineering, and electrolyte additives, with emphasis on the effect and functional mechanism of corresponding techniques. Opportunities and challenges for designing high-performance lithium-rich cathode materials and bridging the gap between laboratory and practical applications are also discussed.
ENERGY STORAGE MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Weixia Lv, Lucheng Li, Jun Chen, Caixia Ou, Qian Zhang, Shengwen Zhong, Hua Wang, Lijue Wu, Haikuo Fu
Summary: The novel high-voltage electrolyte additive TTD was found to significantly improve the capacity, cycle stability, and rate capability of batteries at high voltages. It effectively inhibits electrolyte decomposition by forming a stable cathode electrolyte interphase film. This additive could offer a cost-effective solution for high-performance high-voltage electrolytes.
Article
Materials Science, Ceramics
Qiyue Luo, Wei Chen, Haisheng Fang
Summary: A green and economical method using room-temperature solid-state metathesis reactions has been developed to prepare the precursor for the synthesis of single crystal LiNi0.5Co0.2Mn0.3O2(NCM523). The resulting nanosize precursor allows for the synthesis of micron-level single crystal NCM523 at relatively lower sintering temperatures, with comparable reversible capacities to those synthesized from coprecipitated spherical polycrystalline hydroxides.
CERAMICS INTERNATIONAL
(2022)
Review
Chemistry, Physical
Binbin Chu, Yu-Jie Guo, Ji-Lei Shi, Ya-Xia Yin, Tao Huang, Hang Su, Aishui Yu, Yu-Guo Guo, Yangxing Li
Summary: Lithium-ion batteries are successful energy storage devices, but the use of cobalt in cathodes has raised controversy due to scarcity and uneven distribution. However, completely replacing cobalt presents challenges.
JOURNAL OF POWER SOURCES
(2022)
Article
Chemistry, Physical
Xiaopei Zhu, Han Yu, Lina Cheng, Feifei Xu, Zilu Wang, Li-Zhen Fan
Summary: By introducing Pr3+ into single-crystal LiNi0.5Mn0.3Co0.2O2, the Li+ conductivity and structural stability can be enhanced, improving its rate capability. The Li(Ni0.5Mn0.3Co0.2)0.996Pr0.004O2 cathode with 0.4% Pr doping exhibits good cycling stability and capacity retention.
JOURNAL OF MATERIOMICS
(2023)
Article
Engineering, Chemical
RuiHao Shan, Xiaoxiao Lu, Yuankang Xu, Kefan Shen, Yang Xia, Yurong Cai, Juming Yao, Qinzhong Mao, Yinfeng Wang, Tongzong Ji
Summary: Single-crystal NCMs are considered promising cathode materials for next-generation lithium batteries due to their good cyclability and high safety. However, industrial production of single-crystal NCMs faces challenges of lengthy production steps, high production costs, and poor consistency. In this study, a Ni-Co-Mn ternary MOF was developed for the preparation of NCM cathode materials, which exhibited high activity and could be used to prepare single-crystal NCM111 (SC-NCM) through a regular sintering process. The as-prepared SC-NCM cathode materials showed a polyhedral structure with a smooth surface and demonstrated excellent cyclability and high specific capacities as a high-voltage cathode.
CHEMICAL ENGINEERING SCIENCE
(2023)
Article
Chemistry, Physical
Yujing Bi, Yaobin Xu, Ran Yi, Dianying Liu, Peng Zuo, Jiangtao Hu, Qiuyan Li, Jing Wu, Chongmin Wang, Sha Tan, Enyuan Hu, Jingnan Li, Rebecca O'Toole, Liu Luo, Xiaoguang Hao, Subramanian Venkatachalam, Job Rijssenbeek, Jie Xiao
Summary: A new nanoscale phase separation process has been discovered to promote the growth and segregation of single crystal LiNi0.8Mn0.1Co0.1O2 (NMC811). This process occurs directly during high-temperature calcination without significant agglomeration. The conversion of transition metal hydroxide precursors into transition metal oxide intermediates before reacting them with lithium salt is the key factor.
ENERGY STORAGE MATERIALS
(2023)
Editorial Material
Multidisciplinary Sciences
Shiqi Liu, Haijun Yu
Article
Materials Science, Multidisciplinary
Peipei Ding, Zhiyuan Lin, Xianwei Guo, Lingqiao Wu, Yongtao Wang, Hongxia Guo, Liangliang Li, Haijun Yu
Summary: This review discusses the development of polymer electrolytes through design strategies involving functional unit adjustments, as well as introducing the interfaces between polymer electrolytes and electrodes, interface issues, remedy strategies, and in-situ polymerization methods to enhance battery performance.
Article
Chemistry, Physical
Shiman He, Dian Zhang, Xu Zhang, Shiqi Liu, Weiqin Chu, Haijun Yu
Summary: Aluminum-ion batteries are considered as an alternative for energy storage due to their high theoretical capacity, low cost, and abundant aluminum resources. However, challenges such as slow reaction kinetics and poor cycling stability in Al-SSTs batteries still need to be addressed with various strategies.
ADVANCED ENERGY MATERIALS
(2021)
Review
Chemistry, Physical
Jingteng Zhao, Xu Zhang, Yuan Liang, Zhijie Han, Shiqi Liu, Weiqin Chu, Haijun Yu
Summary: This review paper summarizes the research progress in functional electrolyte additives for LLOs, discusses the mechanisms of CEI construction, and tentatively proposes suggestions to promote the large-scale application of LLOs for LIBs through screening and customizing electrolyte additives.
ACS ENERGY LETTERS
(2021)
Review
Electrochemistry
Shu Zhao, Boya Wang, Zihe Zhang, Xu Zhang, Shiman He, Haijun Yu
Summary: The development of LIBs relies on the research of new high-performance electrode materials, with first-principles calculations playing a crucial role in predicting and interpreting material properties, understanding charge/discharge mechanisms, and providing design strategies. This review highlights the valuable role of first-principles calculations in contemporary research on LIB cathode materials, with a focus on theoretical predictions for rational cathode design based on three different cathode scenarios distinguished by their redox mechanisms. Personal perspectives on current challenges and future directions of first-principles calculations in LIBs are also presented.
ELECTROCHEMICAL ENERGY REVIEWS
(2022)
Article
Chemistry, Multidisciplinary
Errui Wang, Dongdong Xiao, Tianhao Wu, Xiaosong Liu, Yongning Zhou, Boya Wang, Ting Lin, Xu Zhang, Haijun Yu
Summary: A strategy of synergistic bulk doping of Al and Ti is proposed to enhance the structural stability of Li-rich layered oxides (LLOs) for high-energy cathode materials in Li-ion batteries. The study demonstrates the remarkable electrochemical performance of Al/Ti codoped LLOs, including minor voltage decay and superior capacity retention.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Article
Materials Science, Multidisciplinary
Muhammad Mushtaq, Xianwei Guo, Zihe Zhang, Zhiyuan Lin, Xiaolong Li, Zhangquan Peng, Haijun Yu
Summary: This study investigates the dual-function redox mediator in polymer electrolyte-based lithium-oxygen batteries, which promotes oxygen reduction and oxygen evolution reactions in the battery. By combining composite cathodes and lithium ion sources, long-life lithium-oxygen batteries with low charge potentials and good rate performances can be achieved.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2022)
Article
Microscopy
Jiangtao Qu, Wenjie Yang, Tianhao Wu, Wenhao Ren, Jun Huang, Haijun Yu, Chuan Zhao, Matthew J. Griffith, Rongkun Zheng, Simon P. Ringer, Julie M. Cairney
Summary: This paper demonstrates three effective methods to prepare needle-shaped specimens for atom probe tomography measurements from nanoparticles of different sizes, providing high quality data critical to understanding and controlling the performance of functional nanoparticles. These methods address the challenge of specimen preparation from particle samples for atom probe measurement and expands the application of atom probe tomography.
Article
Chemistry, Physical
Yongtao Wang, Lingqiao Wu, Zhiyuan Lin, Mingxue Tang, Peipei Ding, Xianwei Guo, Zihe Zhang, Shiqi Liu, Boya Wang, Xin Yin, Zonghai Chen, Khalil Amine, Haijun Yu
Summary: A series of composite solid electrolytes (CSEs) with wide electrochemical stability window and high ionic conductivity were successfully prepared by integrating SiO2 nanoparticles into poly(vinyl ethylene carbonate) polymer electrolyte. These CSEs exhibit enhanced anti-oxidation performances and can be applied in SSLBs with high-voltage cathodes.
Article
Chemistry, Physical
Zhiyuan Lin, Xianwei Guo, Rui Zhang, Mingxue Tang, Peipei Ding, Zihe Zhang, Lingqiao Wu, Yongtao Wang, Shu Zhao, Qiang Zhang, Haijun Yu
Summary: This study proposes a strategy of molecular structure adjustment to improve the performance of PVEC for high-energy SSLMBs. By eliminating weak bonding and forming LixSn alloy, the compatibilities of electrolyte/cathode and electrolyte/anode interfaces are enhanced, resulting in widened electrochemical stability window and high ionic conductivity.
Article
Chemistry, Physical
Guohua Li, Zhimin Ren, ALin Li, Ruizhi Yu, Wei Quan, Changhong Wang, Ting Lin, Duan Yi, Yang Liu, Qinghua Zhang, Jiantao Wang, Haijun Yu, Xueliang Sun
Summary: Surface/interfacial engineering plays a critical role in optimizing the electrochemical performance of Li-rich layered oxides (LLOs). This study investigates the surface structure of LLOs and performs surface engineering to enhance their stability and prevent voltage decay. The results show that an integrated spinel/rock salt surface structure forms on the LLO surface, leading to improved cycle stability and low voltage decay. The modified LLO cathode retains a high capacity after 2000 cycles, indicating the stability of the surface layer. The findings suggest that the ISR surface concept and the surface modification method have great potential for the commercialization of LLOs in battery applications.
Review
Energy & Fuels
Xu Zhang, Boya Wang, Shu Zhao, Hong Li, Haijun Yu
Summary: The oxygen anionic redox (OAR) has emerged as a new design paradigm to provide additional capacity for high-capacity cathodes, with Li-rich layered oxides (LLOs) being one of the most appealing candidates for future high-energy LIBs. Furthermore, the application of pure OAR can also trigger the emergence of lithium-based sealed batteries with great long-term potentials.
Review
Materials Science, Multidisciplinary
Shiqi Liu, Boya Wang, Xu Zhang, Shu Zhao, Zihe Zhang, Haijun Yu
Summary: This perspective discusses the Jahn-Teller effect in lithium-manganese-based layered oxides (LMLOs) and its impact on the lattice structure and electrochemical stability. It aims to provide a material design concept to eliminate the J-T effect and explores available approaches to address this issue.
Article
Chemistry, Multidisciplinary
Yuan Liang, Shuyi Wang, Yinzhong Wang, Shiman He, Zhiwei Liu, Yulei Fu, Ze Sun, Mingye Li, Zhong-Shuai Wu, Haijun Yu
Summary: The study introduces a cost-effective and universal conductive ink derived from porous activated biochar, which is utilized for scalable production of carbon-based planar MSCs on flexible substrates through screen printing and program-controlled writing. The MSCs exhibit favorable areal capacitance and energy density, and can provide high output voltage when multiple cells are connected in series.
MATERIALS CHEMISTRY FRONTIERS
(2021)
Article
Chemistry, Physical
Dian Zhang, Xu Zhang, Boya Wang, Shiman He, Shiqi Liu, Mingxue Tang, Haijun Yu
Summary: A nitrogen-doped hierarchical porous carbon material was developed to improve the electrochemical performance and stability of aluminum-sulfur batteries. By utilizing a low-cost electrolyte and a sulfur composite cathode, the battery showed significant improvements in cycling performance and capacity. This study sheds light on the design of composite cathodes for high-reversibility, high-capacity, and low-cost Al-S batteries.
JOURNAL OF MATERIALS CHEMISTRY A
(2021)