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Article
Chemistry, Physical
Meng Lei et al.
Summary: Two-dimensional CeF3 nanoplates with maximally exposed [001] crystal faces are introduced into PEO matrix to improve Li-ion conduction and expand electrochemical window. The optimized crystal shape and face anisotropy of CeF3 nanoplate filler reduce crystallinity of CSPE through Lewis acid-base interaction with PEO. The optimized CSPE-0.1CeF(3) membrane enables high endurability and stability in Li metal batteries.
Article
Chemistry, Physical
Yuping Gu et al.
Summary: A mesoporous fluorination interlayer based on high-surface-area AlF3 is proposed to improve the stability and compatibility of LATP/Li interface and enable the reversible operation of NASICON-type Li||FeF3 conversion batteries. It buffers the volume evolution, increases the Li-ion transference number, and promotes the formation of LiF domains. The F-rich interlayer traps the Ti4+ and retards its conversion to Ti3+ during the electrochemical process, while the electro-fusion process at the LATP/Li interface mitigates the anode resistance and guarantees the fast migration of Li+. The Li||Li symmetric cells exhibit stable cycling performance and high capacity with small voltage hysteresis.
ADVANCED ENERGY MATERIALS
(2023)
Article
Chemistry, Physical
Ying Wei et al.
Advanced Energy Materials
(2023)
Article
Chemistry, Physical
Jian Peng et al.
Summary: This article introduces a new battery configuration that uses room-temperature liquid lithium solutions as anodes and argyrodite sulfide as solid electrolyte. This battery configuration has advantages such as high discharge capacity, efficiency, and cycle stability.
ENERGY STORAGE MATERIALS
(2023)
Article
Chemistry, Physical
Xiangming Li et al.
Summary: This study demonstrates a method for fabricating graphene microsphere films with high density and ion conductivity, allowing for ultrahigh charge/discharge current densities and excellent energy density. Furthermore, large-scale films can be quickly fabricated through a roll-to-roll process, indicating the enormous potential of these films in the industrial manufacturing of supercapacitors.
ADVANCED ENERGY MATERIALS
(2023)
Article
Energy & Fuels
Dengxu Wu et al.
Summary: Recently, the Fraunhofer ISI released the "Solid-State Battery Roadmap 2035+" to support German battery research. This roadmap comprehensively summarizes the current and future developments of solid-state batteries at various levels and benchmarks them against the anticipated developments of Li-Ion Batteries (LIBs) in the next ten years.
Article
Chemistry, Physical
Chenglong Wu et al.
Summary: Tailored artificial solid electrolyte interphase (SEI) is proposed to stabilize Li metal batteries (LMBs) and suppress Li anode dendrite. The introduction of KF and Fe components in the nano-structural perovskite coating on Li anode enhances the interface conductivity and homogenizes Li-ion flux and Li-mass plating. The residual K3FeF6 component serves as an isotropic porous modulator to reduce local current density and mitigate electrode volume change.
Article
Chemistry, Multidisciplinary
Hongli Wan et al.
Summary: By adding a small amount of SEI and CEI formers into sulfide electrolytes, the performance of all-solid-state lithium batteries can be significantly enhanced, especially in terms of compatibility with Li anode and high-voltage cathode materials.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Jian Peng et al.
Summary: This study proposes a battery configuration combining a liquid lithium solution anode, a sulfide solid electrolyte, and an interfacial protection layer to address the challenges of poor thermodynamic stability and dendrite growth in lithium metal anodes. The configuration achieves high current density and long cycle life, offering a promising approach for high-capacity, high-energy/power-density, and long-cycle-life secondary batteries.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Article
Chemistry, Physical
Jieru Xu et al.
Summary: A universal method was developed to create water-stable sulfide solid electrolyte membranes through spray coating a Li+-conductive superhydrophobic protection layer, which demonstrates excellent superhydrophobicity and maintains high electrochemical performance even under extreme water exposure conditions.
ADVANCED ENERGY MATERIALS
(2022)
Article
Chemistry, Physical
Kang Xu et al.
Summary: A sandwich-structured composite solid electrolyte was successfully designed and prepared, demonstrating good mechanical and electrochemical stability, high ionic conductivity, and a wide electrochemical stable window. The related lithium batteries exhibited high specific capacity and excellent cycling performance, while the pouch battery showed outstanding safety and functionality.
Review
Materials Science, Multidisciplinary
Xiang Zhu et al.
Summary: All-solid-state batteries have the potential to greatly enhance safety and energy/power density by utilizing sulfide-based solid electrolytes, which have the highest ionic conductivity and good interfacial contact with electrodes. Lithium thioborate materials show promise due to their extremely high lithium-ion conductivity and electrochemical stability. This paper summarizes the research history and milestone discoveries of lithium thioborate solid electrolytes, discusses both glassy and crystalline Li-B-S solid electrolytes, and presents the challenges and potential solutions for future development in this field.
JOURNAL OF MATERIALS RESEARCH
(2022)
Article
Materials Science, Multidisciplinary
Yongxing Li et al.
Summary: This paper provides a comprehensive overview of the technical advantages, development process, principal mechanisms, and application fields of solvent-free dry film technology. It emphasizes powder spray and binder fibrillation as key methods with low-cost mass-production capability and provides detailed explanations of the associated preparation process. Analysis of patents and research papers reveals that these techniques are suitable for all solid-state batteries (ASSBs), suggesting potential for future development in solvent-free dry film technology.
Review
Materials Science, Multidisciplinary
Fan Wu et al.
Summary: This paper provides an overview of solid state ionics, including its history, scientific problems, theoretical and experimental methods, and promising research directions. The practical applications of solid state ionics principles and knowledge are also summarized.
PROGRESS IN MATERIALS SCIENCE
(2022)
Article
Chemistry, Physical
Ruichao Lu et al.
Summary: The use of a high-polarity porous PVDF-HFP layer as an interfacial layer can achieve dendrite-free and stable lithium metal anodes, with high mechanical strength and good Li-ion flux regulation capability. Such a structure can enhance the stability of lithium metal, as well as improve reversibility and cyclic stability.
Article
Chemistry, Multidisciplinary
Jieru Xu et al.
Summary: This study constructs an ultrastable and kinetically favorable interface between sulfide-poly(ethylene oxide) composite solid electrolytes (CSEs) and lithium metal through in situ formation of a solid electrolyte interphase (SEI) layer containing Li3PS4. A specially designed sulfide, lithium polysulfidophosphate (LPS), can distribute uniformly in the PEO matrix, creating a homogeneous SEI layer. The CSE/Li interface with high Li+ transportation capability is quickly stabilized through the reaction between LPS and lithium metal to inhibit lithium dendrite growth.
ADVANCED MATERIALS
(2022)
Article
Multidisciplinary Sciences
Jiulin Hu et al.
Summary: All-solid-state batteries are promising due to their high energy content and safety, but their practical development is hindered by poor cycling performance and electrode passivation. In this study, a fluorination strategy is proposed to address these issues, and thin laminated all-solid-state batteries with excellent cycling performance are developed.
NATURE COMMUNICATIONS
(2022)
Article
Chemistry, Physical
Yongxing Li et al.
Summary: Sulfide all-solid-state batteries (ASSBs) are considered as promising next-generation energy storage devices due to their improved safety performance and high energy density. Solvent-free dry-film processes have unique advantages, but the current binder used in these processes, polytetrafluoroethylene, has poor voltage stability and low viscosity. In this study, a specially-designed treatment is developed to obtain a new type of dry binder, styrene-butadiene rubber (SBR), which significantly improves the cycling stability and Coulombic efficiency of sulfide ASSBs.
ADVANCED ENERGY MATERIALS
(2022)
Review
Chemistry, Physical
Changhong Wang et al.
Summary: This paper discusses the overlooked issue of soft breakdown in all-solid-state lithium batteries (ASSLBs) and proposes an effective method for diagnosis. By analyzing the significant effect of critical parameters, a testing benchmark is established to guide scientific understanding and engineering design.
Review
Electrochemistry
Pushun Lu et al.
Summary: This review provides a comprehensive overview of the research history, theoretical paradigms, characterization methods, and strategies for improving the air stabilities of sulfide solid electrolytes (SEs) in all-solid-state batteries (ASSBs). It also proposes future research directions for the benign development of air stability in sulfide SEs and ASSBs.
ELECTROCHEMICAL ENERGY REVIEWS
(2022)
Article
Chemistry, Multidisciplinary
Shuo Wang et al.
Summary: This study experimentally investigates the thermal stability performance of sulfide solid electrolytes and proposes an improved method to enhance the thermal stability between sulfide solid electrolytes and oxide cathodes.
Article
Physics, Applied
Dengxu Wu et al.
Summary: This perspective provides a timely overview of the recent research and development of solid-state lithium batteries (SSLBs) in China, highlighting the use of various solid electrolytes and summarizing government policies and industrialization progress.
APPLIED PHYSICS LETTERS
(2022)
Article
Chemistry, Physical
Qiuyan Liu et al.
Summary: This paper investigates the PVDF-based polymer electrolyte and demonstrates that it is based on the interactions between the solvent-Li+ complex and the polymer. This electrolyte exhibits high ionic conductivity, Li-ion transference number, and Young's modulus, making it suitable for solid lithium batteries and as an ion-conducting binder for electrodes.
ENERGY STORAGE MATERIALS
(2022)
Article
Materials Science, Multidisciplinary
Shuo Wang et al.
Summary: This study develops a theoretical paradigm and a new conceptual parameter for quantitatively calculating and predicting the thermal stability of sulfide solid electrolytes. Experimental strategies and stoichiometric ratio control are used to improve the thermal stability of sulfide solid electrolytes based on the predictions obtained from the derived theory. The potential doping elements to enhance the thermal stability of sulfide solid electrolytes are also screened, and the predicted trends align well with experimental evidence.
Review
Engineering, Environmental
Qi Yang et al.
Summary: This review summarizes the preparation methods of gel polymer electrolytes (GPEs) in lithium sulfur (Li-S) batteries and their applications in Li-S batteries. Modifying diverse substrates can ameliorate the "shuttle effects" of polysulfides and hinder the growth of lithium dendrites. Finally, an outlook section provides insights on the future prospects of GPEs in Li-S batteries.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Polymer Science
Smaranika Dash et al.
Summary: Ferroelectric ceramic-polymer composites made of PVDF-HFP and BZT-BCT ceramics were studied for their structural, vibrational, optical, dielectric and ferroelectric properties. The interaction mechanism between filler and polymer matrix, as well as the variation of dielectric properties with filler concentrations, were analyzed to understand the enhancement of the beta phase.
Review
Chemistry, Physical
Haiping Wu et al.
Summary: The structure, properties, and influencing factors of SEI play a crucial role in the performance of lithium metal batteries. Efficient strategies for tailoring SEI involve understanding the composition, models, and properties of SEI, as well as the correlations between electrolyte components and SEI. Future directions include in-operando techniques, multi-modality approaches for SEI characterization, and artificial intelligence assisted understanding of SEI properties.
ADVANCED ENERGY MATERIALS
(2021)
Article
Chemistry, Physical
Yu-Kai Huang et al.
Summary: Research shows that introducing a short (e.g., 1 s long) potentiostatic pulse can improve the performance of lithium-metal electrodes by facilitating the first oxidation step to occur more homogeneously on the lithium surface. This surface activation step creates numerous preferential lithium nucleation sites, aiding in achieving a uniform lithium deposition step. Experimental results indicate that this straightforward pulse approach can significantly increase the lifetime of lithium-metal electrodes.
ADVANCED ENERGY MATERIALS
(2021)
Review
Chemistry, Multidisciplinary
Yang Lu et al.
Summary: Solid-state lithium metal batteries have gained attention for their improved safety and high energy density, but issues such as dendrite-induced short circuits and contact-loss-induced high impedance hinder practical applications. The critical current density (CCD) is crucial for SSLMBs and future research should focus on strategies to enhance CCD for practical use.
ADVANCED FUNCTIONAL MATERIALS
(2021)
Article
Materials Science, Multidisciplinary
Simadri Badatya et al.
Summary: A highly sensitive graphene quantum dot (GQDs) reinforced poly (vinylidene fluoride) co-hexafluoride propylene (PVDF-HFP) based flexible piezoelectric nanogenerator was reported for the first time, showing significantly higher output voltage and current compared to pristine PVDF-HFP nanogenerator. The improved performance is attributed to the alignment of electric dipoles induced by the conductive GQDs, making it suitable for self-powered sensors and nano-systems power supply.
Article
Chemistry, Multidisciplinary
Pushun Lu et al.
Summary: Sulfide solid electrolytes (SEs) are considered promising for all-solid-state batteries (ASSBs) due to their superior ionic conductivity and ductility. A one-step gas-phase synthesis method for sulfide SEs with oxide raw materials in ambient air has been developed, achieving high ionic conductivity. ASSBs with Li3.875Sn0.875As0.125S4 show superior performance, breaking records for reversible capacity and cycle life.
ADVANCED MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Yi-Hong Tan et al.
Summary: Electrolyte engineering with fluorinated additives has the potential to enhance cycling stability and safety of high-energy Li-metal batteries. The electrolyte developed in this study utilizing a porous lithium fluoride strategy demonstrated nonflammability and high electrochemical performance, leading to stable cycling of Li-metal anodes even at high current densities. This new electrolyte engineering strategy offers promise for stable and safe Li-metal batteries.
ADVANCED MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Yipeng Sun et al.
Summary: The innovative nano-scale protective film design for lithium metal anodes (LMAs) utilizing mechanically enhanced hybrid inorganic-organic polyurea through gradient coating achieved by molecular layer deposition (MLD) is able to stabilize the lithium metal anodes. This design can confine the electro-deposition of lithium and tolerate volume changes, while also effectively facilitating and regulating uniform lithium nucleation and deposition.
ENERGY & ENVIRONMENTAL SCIENCE
(2021)
Article
Chemistry, Multidisciplinary
Xiao-Dong Lin et al.
Summary: This study combines electrochemical polishing technology with LiNO3 reduction chemistry to construct a stable and molecularly smooth SEI on the Li metal surface, with a unique multi-layered structure encapsulating soluble NO2- species. This SEI film not only prevents negative effects from NO2- dissolution, but also effectively suppresses dendrite growth and O-2 permeation on the Li surface, substantially improving the cycle lives of O-2-saturated symmetric Li cells and Li-O-2 batteries. The work provides an effective strategy to protect Li metal anodes and offers novel insights into rational electrolyte additive utilization.
ENERGY & ENVIRONMENTAL SCIENCE
(2021)
Article
Chemistry, Physical
Suogang Guo et al.
ACS APPLIED ENERGY MATERIALS
(2020)
Review
Chemistry, Physical
Yunpeng Jiang et al.
Article
Materials Science, Multidisciplinary
Yang Zhao et al.
Article
Energy & Fuels
Lilu Liu et al.
Article
Chemistry, Multidisciplinary
Chong Yan et al.
ADVANCED MATERIALS
(2018)
Article
Chemistry, Multidisciplinary
Chong Yan et al.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2018)
Article
Multidisciplinary Sciences
Fan Wu et al.
NATURE COMMUNICATIONS
(2018)
Article
Chemistry, Physical
Guanghai Chen et al.
ADVANCED ENERGY MATERIALS
(2018)
Review
Chemistry, Multidisciplinary
Xin-Bing Cheng et al.
Article
Chemistry, Physical
Chenxi Zu et al.
ADVANCED ENERGY MATERIALS
(2016)
