Article
Chemistry, Multidisciplinary
Won-Jin Kwak, Hyung-Seok Lim, Peiyuan Gao, Ruozhu Feng, Sujong Chae, Lirong Zhong, Jeffrey Read, Mark H. Engelhard, Wu Xu, Ji-Guang Zhang
Summary: This study systematically investigates the localized high-concentration electrolytes (LHCEs) using different fluorinated diluents, calculating their physical properties and activation energies for reactions with singlet oxygen (O-1(2)), and comparing the electrochemical performances of LOBs using these electrolytes. The research reveals that the stability of the electrolytes is strongly correlated with their physical and electrochemical properties depending on the diluents in LHCEs, shedding light on the rational design of new electrolytes for LOBs.
ADVANCED FUNCTIONAL MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Xiaojuan Chen, Lei Qin, Jiaonan Sun, Songwei Zhang, Dan Xiao, Yiying Wu
Summary: This study reveals a degradation mechanism of ether-based high-concentration electrolytes in alkali metal batteries, suggesting that the reaction between the ether solvent and alkali metals leads to unstable SEI and metal corrosion, while switching to ester-based solvents or intercalation anodes can avoid this degradation.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Chemistry, Physical
Richard May, Julia C. Hestenes, Naiara A. Munich, Lauren E. Marbella
Summary: This study used operando nuclear magnetic resonance (NMR) spectroscopy to observe electrolyte decomposition and investigate the influence of individual components on the performance of localized high concentration electrolytes (LHCEs) in lithium metal batteries. The results suggest that the diluent molecules in LHCEs play a critical role in the formation of solid electrolyte interphase (SEI). Three-electrode electrochemical impedance spectroscopy (EIS) showed different interfacial resistances between LHCE and standard high concentration electrolytes (HCEs), which can be attributed to the incorporation of diluent reaction products into the SEI.
JOURNAL OF POWER SOURCES
(2023)
Article
Chemistry, Multidisciplinary
Feng Guo, Xi Chen, Yuhan Hou, Wenshuo Wei, Zhicheng Wang, Hao Yu, Jingjing Xu
Summary: Li||NMC811 battery, with lithium-metal as anode and LiNi0.8Co0.1Mn0.1O2 as cathode, is a potential high-energy-density battery. However, its cycling performance needs improvement, and the electrolyte plays a key role in this improvement.
Review
Electrochemistry
Xia Cao, Hao Jia, Wu Xu, Ji-Guang Zhang
Summary: Conventional LiPF6/carbonate-based electrolytes have been widely used in graphite-based lithium ion batteries for their stability, but are less stable in Li metal and silicon anodes. Localized high-concentration electrolytes have unique advantages, forming stable SEI layers to improve stability.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2021)
Article
Chemistry, Physical
Xudong Peng, Yanke Lin, Yu Wang, Yiju Li, Tianshou Zhao
Summary: The emerging localized high-concentration electrolytes (LHCEs) with small salt dosage, low viscosity, and favorable electrode wettability have triggered extensive research interest recently. In this study, an anode-compatible and high-voltage ether-based LHCE (BTF-LHCE) is proposed by introducing cost-efficient and lightweight benzotrifluoride (BTF) as a diluent. The BTF-LHCE system exhibits unique solvation structure and interfacial chemistry, leading to high Coulombic efficiency (CE) for both Si and metallic Li anodes. The Si||NCM622 and Li||NCM622 pouch cell assembled with BTF-LHCE show high cell-level specific energy densities, indicating the promising potential of the advanced ether-based electrolytes for high-voltage and high-specific-energy battery technologies.
Article
Chemistry, Physical
Md Jamil Hossain, Qisheng Wu, Edelmy J. Marin J. Bernardez, Calvin D. Quilty, Amy C. Marschilok, Esther S. Takeuchi, David C. C. Bock, Kenneth J. J. Takeuchi, Yue Qi
Summary: Localized high-concentration electrolytes (LHCEs) combine a diluent with a high-concentration electrolyte, forming complex liquid structures with embedded salt clusters. The structures and conductivities of LHCEs based on a fluorinated solvent with two different diluents were investigated. The ionic conductivity increases with decreasing diluent concentrations, and TFETFE demonstrates higher effectiveness than TFPTFA.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2023)
Article
Nanoscience & Nanotechnology
Zelin Xu, Kuirong Deng, Suping Zhou, Zheng Liu, Xiongcong Guan, Daize Mo
Summary: A highly concentrated electrolyte has been developed for lithium metal batteries, which improves interface stability and cycle performance. This electrolyte also exhibits high safety and good compatibility with other materials.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Multidisciplinary
Jayse Langdon, Arumugam Manthiram
Summary: This study investigates the effects of crossed-over chemical species in cells with oxide cathodes and lithium-metal anodes. It finds that crossover significantly affects the performance of batteries, such as reducing solid-electrolyte interphase growth when pairing a high-nickel cathode with a lithium-metal anode, and increasing capacity fade when pairing a cathode with lithium metal. The decomposition and crossover of FSI salt are identified as the main sources of these changes.
ADVANCED MATERIALS
(2022)
Article
Chemistry, Physical
Mengxue He, Xia Li, Xiaofei Yang, Changhong Wang, Matthew Liu Zheng, Ruying Li, Pengjian Zuo, Geping Yin, Xueliang Sun
Summary: A novel electrolyte has been proposed in this study to effectively eliminate the shuttle effect in lithium-sulfur batteries, resulting in stable cycling performance. By utilizing a solid-phase reaction route and forming a compact cathode electrolyte interface film, the developed strategy shows promise for future development of Li-S batteries based on solid-phase conversion.
ADVANCED ENERGY MATERIALS
(2021)
Article
Chemistry, Physical
Zelin Xu, Kuirong Deng, Suping Zhou, Daize Mo
Summary: We developed a nonflammable LHCE based on trimethyl phosphate (TMP) diluted by 1,2-difluorobenzene (DFB), which improves the battery performance by reducing density, cost, and LUMO.
JOURNAL OF POWER SOURCES
(2023)
Article
Chemistry, Multidisciplinary
Qianqian Liu, Yan Liu, Zerui Chen, Qiang Ma, Youran Hong, Jianghao Wang, Yifei Xu, Wei Zhao, Zhikun Hu, Xiang Hong, Jiangwei Wang, Xiulin Fan, Hao Bin Wu
Summary: A novel localized high-concentration electrolyte with PFPN as a diluent has been developed, which improves the safety of organic electrolyte and enhances the stability and cycling life of high-voltage LiNi0.6Co0.2Mn0.2 and LiNi0.8Co0.1Mn0.1 cathodes in Lithium-metal batteries.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Engineering, Environmental
Tingting Feng, Guozhu Yang, Shu Zhang, Ziqiang Xu, Haiping Zhou, Mengqiang Wu
Summary: This study investigates the use of localized high-concentration electrolytes (LHCEs) to improve the low-temperature operation of high-voltage lithium-ion batteries. A new short-chain fluorinated diluent is used to prepare a stable LHCE, allowing the battery to operate with high current density at low temperatures.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Multidisciplinary
Ping Nie, Meiqi Liu, Wenhui Qu, Meiqi Hou, Limin Chang, Zhuomei Wu, Hairui Wang, Jiangmin Jiang
Summary: The high-concentration electrolyte has significant effects in improving the cycle life of potassium ion batteries. However, its application is challenging due to high viscosity, low conductivity, and poor electrode wettability. In this study, a fluorinated localized high concentration electrolyte (LHCE) is designed and proven to have excellent oxidation stability, low flammability, and excellent electrode wettability. The LHCE is further investigated in a half-cell and exhibits high-capacity retention upon cycling. The work provides a theoretical guidance and significant reference for electrode interphase design and engineering.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Physical
Shunqiang Chen, Qingshun Nian, Lei Zheng, Bing-Qing Xiong, Zihong Wang, Yanbin Shen, Xiaodi Ren
Summary: In this study, a localized high concentration electrolyte (LHCE) using 1,4-dioxane as the diluent and hydrogen-bond modulator is reported for aqueous zinc (Zn) metal batteries. The unique solvation structure in LHCE greatly boosts anion chemistries to induce fluorinated interphases on Zn anode and V2O5 cathode, achieving higher rate capabilities and Zn coulombic efficiencies without dendrite formation. This approach can be applied to adjust electrolyte physical properties and control interphase formation in other aqueous battery systems for practical applications.
JOURNAL OF MATERIALS CHEMISTRY A
(2021)
Article
Chemistry, Multidisciplinary
Yu Zheng, Yanbing Yang, Shasha Chen, Quan Yuan
Article
Chemistry, Physical
Jaebeom Han, Yu Zheng, Ningxuan Guo, Perla B. Balbuena
JOURNAL OF PHYSICAL CHEMISTRY C
(2020)
Editorial Material
Chemistry, Physical
Jordi Cabana, Thomas Alaan, George W. Crabtree, Po-Wei Huang, Akash Jain, Megan Murphy, Jeanne N'Diaye, Kasinath Ojha, George Agbeworvi, Helen Bergstrom, Simon Gersib, Hassan Harb, Adrien Stejer, Genesis Quiles-Galarza, Oliver Rodriguez, Isabella Caruso, Josue M. Goncalves, Grace Y. Chen, Carlos A. Fernandez, Hanqing Pan, Kabian Ritter, Yingjie Yang, Haozhe Zhang, Ana Cristina Garcia-Alvarez, Stefan Ilic, Khagesh Kumar, Rachel Silcox, Yu Yao, Hakhyeon Song, Stoyan Stoyanov, Mohit Saraf, Celine H. Chen, S. M. Supundrika Subasinghe, Reginaldo Gomes, Shuangyan Lang, Eamonn Murphy, Arashdeep Singh Thind, Yu Zheng
ACS ENERGY LETTERS
(2023)
Article
Chemistry, Physical
Yu Zheng, Fernando A. Soto, Victor Ponce, Jorge M. Seminario, Xia Cao, Ji-Guang Zhang, Perla B. Balbuena
JOURNAL OF MATERIALS CHEMISTRY A
(2019)