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Article
Chemistry, Multidisciplinary
Taiping Hu et al.
Summary: The Li ion transport mechanism in amorphous LiF and Li2CO3, the major inorganic components of the solid electrolyte interphase (SEI), is investigated through machine-learning-potential-assisted molecular dynamics simulations. Results show that the Li ion diffusivity in amorphous LiF at room temperature cannot be accurately predicted based on high temperature diffusivities. The formation of Li-F regular tetrahedrons at low temperatures greatly suppresses the Li ion diffusivity, suggesting that designing an amorphous bulk LiF-based SEI is not beneficial for Li ion transport.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2023)
Article
Chemistry, Multidisciplinary
Mohammed Srout et al.
Summary: Lithium-metal batteries have higher energy densities than lithium-ion batteries, but their practical use is limited by safety concerns. This study uses electrochemical impedance spectroscopy to analyze the EIS spectra of metallic lithium electrodes and finds that the charge-transfer impedance is a major component, strongly influenced by the native passivation layer and electrolyte properties. Asymmetry in the EIS spectra of symmetric cells is also identified when separating the contributions of the working and counter electrodes using three-electrode cells.
Article
Chemistry, Multidisciplinary
Zunchun Wu et al.
Summary: This study found that the coordination between Li+ and solvents determines the anodic stability of localized high-concentrated electrolytes (LHCEs) on high-voltage cathodes, which can be finely tuned by ambient diluents. Among the possible diluents, 2H,3H-decafluoropentane (HFC) was found to satisfy the principle of weak but sufficient interactions, which enhances Li+ coordination and offers excellent antioxidant chemistry. The study provides guiding principles for improving the cathodic and anodic stability of electrolytes, benefiting the development of LHCEs and inspiring next-generation lithium batteries formulation.
Review
Chemistry, Multidisciplinary
Nan Zhang et al.
Summary: This article presents a comprehensive research on the key factors contributing to the poor low-temperature performance of LIBs and proposes strategies and solutions to improve it.
ADVANCED MATERIALS
(2022)
Article
Energy & Fuels
Zhiao Yu et al.
Summary: The authors designed and synthesized a family of fluorinated-1,2-diethoxyethanes as electrolyte solvents, addressing the issue of cycling capability in lithium metal batteries and uncovering the relationship between electrolyte structure and performance.
Article
Chemistry, Physical
Deqing Cao et al.
Summary: The redox potentials of mediators can be tuned to accelerate reaction kinetics, leading to efficient cycling of Li-S and Li-O-2 batteries. This acceleration is independent of the type of mediator and electrolyte and is achieved by activating the extraction step of lithium ions/electrons on specific surface facets.
Article
Chemistry, Multidisciplinary
Xiaojuan Chen et al.
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, Multidisciplinary
Bo Nan et al.
Summary: Using low-polarity-solvent electrolytes is proposed as a strategy to reduce the capacity loss of lithium-ion batteries at low temperatures. The weak interactions between solvents and Li+ ions in the electrolyte help to reduce charge transfer resistance and facilitate Li+ transport. Experiments show that this electrolyte enables high capacity retention at low temperatures and stable cycling performance.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Chemistry, Multidisciplinary
Haifeng Tu et al.
Summary: The study developed a crowding dilutant modified ionic liquid electrolyte (M-ILE) for constructing a solid electrolyte interphase (SEI) for high-performance lithium metal batteries. Simulation and experiments demonstrated that the use of 1,2-difluorobenzene (1,2-dfBen) dilutant significantly improved the battery's cycling stability and energy storage performance through promoting the interaction of Li⁺-FSI⁻ and construction of a robust and high ionic-conductive SEI.
Article
Chemistry, Multidisciplinary
Chuangchao Sun et al.
Summary: This study designs two electrolytes that enable extreme fast charging of a microsized graphite anode, achieving high ionic conductivity, low desolvation energy, and a protective solid electrolyte interphase (SEI). These electrolytes provide principles for the practical design of fast-charging lithium-ion batteries (LIBs) with graphite anodes.
ADVANCED MATERIALS
(2022)
Article
Multidisciplinary Sciences
Chao-Yang Wang et al.
Summary: Researchers have achieved fast charging of high-energy density batteries using an asymmetric temperature modulation and a thermally stable dual-salt electrolyte method, allowing for a 75% state of charge in just 12 minutes. They have also developed a digital twin to assess cooling and safety, demonstrating the feasibility of thermally modulated 4C charging with air convection.
Article
Chemistry, Multidisciplinary
Yanzhou Wu et al.
Summary: This study investigates the significance of antisolvents in high-concentration electrolytes, revealing that they not only dilute the electrolyte but also create a low-dielectric environment and enhance the chemical effects in the solvation structure, leading to improvements in battery performance.
ACS CENTRAL SCIENCE
(2022)
Article
Chemistry, Multidisciplinary
John Holoubek et al.
Summary: In this study, we report the development of >4 V Li metal full cell batteries capable of charging and discharging at extremely low temperatures. By introducing cation/anion pairs in the electrolyte, significant improvements in the performance of the batteries were observed. This ion-pairing effect was found to enhance both the cathode and anode, resulting in improved Coulombic efficiencies and oxidative stability of the Li metal.
ENERGY & ENVIRONMENTAL SCIENCE
(2022)
Article
Chemistry, Multidisciplinary
Yu-Xing Yao et al.
Summary: The research reveals a weakly solvating electrolyte that improves the performance of Li-ion batteries by forming unique anion-derived interfaces, demonstrating fast-charging and long-term cycling characteristics.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Chemistry, Multidisciplinary
Li-Li Jiang et al.
Summary: By utilizing a localized high-concentration electrolyte, a uniform and robust solid electrolyte interphase can be achieved on the graphite surface, leading to fast-charging performance and excellent cycling stability of lithium-ion batteries.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Chemistry, Multidisciplinary
Yuelang Chen et al.
Summary: The study introduces a molecular design principle that utilizes steric hindrance effect to improve the electrochemical stability of lithium electrolytes through tuning the solvation structures of lithium ions. Experimental and computational evidence show that this design leads to enhanced cyclic performance and stability of lithium metal batteries under high-voltage conditions.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2021)
Article
Multidisciplinary Sciences
Singyuk Hou et al.
Summary: Rechargeable magnesium and calcium metal batteries show promise as alternatives to lithium-ion batteries due to their high crustal abundance and capacity. By using a specific family of chelants, researchers were able to greatly improve the interfacial charge transfer kinetics and suppress side reactions, resulting in stable and highly reversible cycling performance for the batteries. This work provides a versatile electrolyte design strategy for divalent metal batteries.
Article
Energy & Fuels
John Holoubek et al.
Summary: This study highlights the importance of the solvation structure of the electrolyte in charge-transfer behavior at ultra-low temperatures for lithium metal batteries. By designing an electrolyte to enable low-temperature operations, stable performance and high efficiency can be achieved for Li-metal batteries.
Article
Chemistry, Physical
Aiping Wang et al.
Summary: The research reveals that regulating the structure of discharge products and selecting appropriate solvents can accelerate the reaction kinetics between redox mediators and discharge products.
ENERGY STORAGE MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Jinkwan Choi et al.
Summary: The initial Coulombic efficiency of the anode is crucial for the energy density of a Li-ion battery, and a blend of graphite and Si/SiOx is the most practical way to balance capacity and cycle life, but its low ICE limits its commercial viability. A chemical prelithiation method can maximize the ICE of the blend anodes, leading to a near-ideal energy density in a full cell.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2021)
Review
Chemistry, Multidisciplinary
Xiulin Fan et al.
Summary: The energy density of LIBs has been increased threefold since their introduction, but the capacity of transition metal oxide cathodes is approaching its limit due to stability limitations of electrolytes. To further enhance energy density, new high-capacity and high-voltage cathode materials need to be explored, and graphite anodes may need to be replaced. One of the main challenges for future development is the development of new electrolyte compositions that can accommodate high-voltage cathodes and anodes while ensuring the stability of the batteries.
CHEMICAL SOCIETY REVIEWS
(2021)
Review
Chemistry, Multidisciplinary
Matthew Li et al.
Article
Chemistry, Physical
John Holoubek et al.
ACS ENERGY LETTERS
(2020)
Article
Chemistry, Multidisciplinary
Xiaoli Dong et al.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2019)
Review
Energy & Fuels
Yuki Yamada et al.
Article
Electrochemistry
Xiang Chen et al.
BATTERIES & SUPERCAPS
(2019)
Article
Chemistry, Multidisciplinary
Yunsong Li et al.
ENERGY & ENVIRONMENTAL SCIENCE
(2019)
Article
Chemistry, Physical
Lu Yu et al.
ACS ENERGY LETTERS
(2018)
Article
Nanoscience & Nanotechnology
Qiuyan Li et al.
ACS APPLIED MATERIALS & INTERFACES
(2017)
Article
Multidisciplinary Sciences
Jianhui Wang et al.
NATURE COMMUNICATIONS
(2016)
Article
Multidisciplinary Sciences
Liumin Suo et al.
Article
Chemistry, Physical
Kevin Leung et al.
JOURNAL OF PHYSICAL CHEMISTRY C
(2013)
Article
Chemistry, Multidisciplinary
Kang Xu et al.
Article
Chemistry, Multidisciplinary
YX Wang et al.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2001)
