Polybenzimidazole-reinforced polyethylene oxide-based polymer-in-salt electrolytes enabling excellent structural stability and superior electrochemical performance for lithium metal batteries

Article Multidisciplinary Sciences

Elastomeric electrolytes for high-energy solid-state lithium batteries

Michael J. Lee et al.

Summary: Elastomeric solid-state electrolytes with mechanical robustness, high ionic conductivity, low interfacial resistance and high lithium-ion transference number enable stable operation of high-energy, solid-state lithium batteries.

NATURE (2022)

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Article Polymer Science

Molecular composite electrolytes of polybenzimidazole/polyethylene oxide with enhanced safety and comprehensive performance for all-solid-state lithium ion batteries

Qinghui Zhang et al.

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.

POLYMER (2022)

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Article Chemistry, Physical

Synergistic Effect of Lithium Salts with Fillers and Solvents in Composite Electrolytes for Superior Room-Temperature Solid-State Lithium Batteries

Li Liu et al.

Summary: By fabricating a flexible composite solid electrolyte membrane consisting of a poly(vinylidene fluoride) (PVDF) matrix, high-concentration lithium salt (LiTFSI), solvent (DMF), and ceramic filler Li1.3Al0.3Ti1.7(PO4)(3) (LATP), we have achieved solid-state lithium batteries with superior performance and safety features.

ACS APPLIED ENERGY MATERIALS (2022)

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Article Chemistry, Multidisciplinary

Design Unique Air-Stable and Li-Metal Compatible Sulfide Electrolyte via Exploration of Anion Functional Units for All-Solid-State Lithium-Metal Batteries

Niaz Ahmad et al.

Summary: A novel Li2.96P0.98S3.92O0.06-Li3N glass-ceramic electrolyte is developed, which exhibits excellent ionic conductivity and moisture resistance. The formation of a stable solid electrolyte interphase effectively inhibits the growth of Li dendrites. Long-term cycling in Li//Li cells is achieved.

ADVANCED FUNCTIONAL MATERIALS (2022)

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Article Chemistry, Physical

A non-flammable, flexible and UV-cured gel polymer electrolyte with crosslinked polymer network for dendrite-suppressing lithium metal batteries

Yixuan Gu et al.

Summary: A flexible, non-flammable gel polymer electrolyte with high ionic conductivity, excellent oxidation stability, and good thermal stability was synthesized. It exhibited better compatibility with the lithium metal anode compared to commercial liquid electrolyte, and showed excellent cycling performance even after 1000 cycles at room temperature and elevated temperature.

IONICS (2022)

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Article Engineering, Environmental

An ion conducting ZIF-8 coating protected PEO based polymer electrolyte for high voltage lithium metal batteries

Jinlai Shen et al.

Summary: In this study, an ion conducting asymmetric poly(ethylene oxide) (PEO) based electrolyte was prepared with a zeolitic imidazolate framework (ZIF-8)@ionic liquid protective coating on the cathode surface and ZIF-8 nanofillers in the lithium metal anode. The composite electrolyte exhibited high ionic conductivity and broad electrochemical stability window, effectively preventing electrolyte oxidation, transition metal dissolution, and lithium dendrite growth and penetration.

CHEMICAL ENGINEERING JOURNAL (2022)

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Article Chemistry, Physical

Li6.4La3Zr1.4Ta0.6O12 Reinforced Polystyrene-Poly(ethylene oxide)-Poly (propylene oxide)-Poly(ethylene oxide)-Polystyrene pentablock copolymer-based composite solid electrolytes for solid-state lithium metal batteries

Xiaorong Zhang et al.

Summary: The demand for lithium-ion batteries with high safety and high energy density has led to research on solid electrolytes. Composite solid electrolytes (CSEs) are a combination of inorganic solid electrolytes and polymer electrolytes, and have shown improved ionic conductivity and lithium ion transfer capacity. By incorporating LLZTO nanoparticles into a polymer matrix, a novel CSE with high lithium ion conductivity and electrochemical stability was successfully fabricated.

JOURNAL OF POWER SOURCES (2022)

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Article Chemistry, Physical

Two-Dimensional Fluorinated Graphene Reinforced Solid Polymer Electrolytes for High-Performance Solid-State Lithium Batteries

Pengbo Zhai et al.

Summary: This paper reports the design of 2D fluorinated graphene-reinforced PVDF-HFP-LiTFSI polymer electrolytes for improving the mechanical properties and electrode/electrolyte interfacial reaction in solid-state lithium batteries. The use of this polymer electrolyte enables long-term Li plating/stripping and stable cycling, promoting the applications of solid polymer electrolytes in high-performance solid-state lithium batteries.

ADVANCED ENERGY MATERIALS (2022)

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Article Materials Science, Multidisciplinary

High-Energy Metallic Lithium Batteries Enabled by Polymer-in-Salt Electrolytes of Cyclic Carbonate Substituted Polyethers

Donglei You et al.

Summary: A polymer-in-salt electrolyte based on cross-linkable polyethers with cyclic carbonate groups has been developed. The electrolyte shows improved ion conductivity and lithium ion transference number. It effectively suppresses dendrite growth from the lithium-metal anode and enables uniform lithium deposition. The in situ cross-linking results in a flexible thin film with fast lithium ion conduction, leading to high cycling stability in all-solid-state lithium batteries.

ACS APPLIED POLYMER MATERIALS (2022)

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Article Engineering, Environmental

Stabilizing solid electrolyte/Li interface via polymer-in-salt artificial protection layer for high-rate and stable lithium metal batteries

Long Pan et al.

Summary: This study introduces a novel artificial protection layer PiSPL for solid-state Li-metal batteries, which improves the contact, ionic conductivity, and inhibits interfacial reactions between the solid electrolyte and Li metal. This design results in small overpotentials, long lifetime, and excellent rate capability and cyclability.

CHEMICAL ENGINEERING JOURNAL (2022)

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Article Chemistry, Physical

Polypropylene separator-reinforced polymer-in-salt solid composite electrolytes for high-performance lithium ion batteries at room temperature

Kun Shi et al.

Summary: In this study, polymer-in-salt sandwich-like solid composite electrolytes (SSCEs) were prepared using a polypropylene separator (PP) as a mechanical reinforcement framework. The designed SSCEs exhibited improved mechanical properties, high ionic conductivity, and excellent cycling stability, making them promising for high-performance room-temperature solid-state lithium ion batteries.

SUSTAINABLE ENERGY & FUELS (2022)

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Article Chemistry, Applied

Functional-selected LiF-intercalated-graphene enabling ultra-stable lithium sulfur battery

Haoliang Lu et al.

Summary: By utilizing a functionally selective solid electrolyte interphase as an anodic protection layer, the settlement of uneven lithium electrodeposits in lithium sulfur batteries can be effectively avoided. The novel LiF-intercalated-graphene SEI exhibits a high elastic modulus, mechanical strength, and repulsive capability towards polysulfides, leading to the effective protection of lithium anodes and remarkable electrochemical performance in Li-S batteries.

JOURNAL OF ENERGY CHEMISTRY (2021)

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Article Engineering, Chemical

Fire-retardant sp3 boron-based single ion conducting polymer electrolyte for safe, high efficiency and dendrite-free Li-metal batteries

Yunfeng Zhang et al.

Summary: This study developed a fully aromatic sp(3) boron-based single lithium ion conducting polymer electrolyte with high lithium ion transference number, high ionic conductivity, excellent thermal stability, and flame-retardant properties. By providing a porous structure, excellent lithium ion transport channels, and effectively suppressing lithium dendrite growth in lithium metal batteries, the material demonstrated superior cycling performance.

JOURNAL OF MEMBRANE SCIENCE (2021)

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Article Chemistry, Multidisciplinary

Designing Polymer-in-Salt Electrolyte and Fully Infiltrated 3D Electrode for Integrated Solid-State Lithium Batteries

Wenyi Liu et al.

Summary: A solid-state lithium battery with high room-temperature ionic conductivity was designed, achieving faster Li+ transport and superior electrochemical performance through the construction of an integrated model SSLB.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2021)

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Article Chemistry, Physical

Ultrastable Lithium-Ion Batteries Prepared by Introducing γ-LiAlO2 in a Gel Polymer Electrolyte at 50 °C Working Temperature

Caihong Xue et al.

Summary: The study developed a novel GPE, PHOP-LAO, with improved ionic conductivity and thermal stability due to the addition of gamma-LiAlO2. This new GPE shows potential for achieving ultra-stable and safe LIBs in the future, with outstanding cycling performance and power capability retention rates.

ACS APPLIED ENERGY MATERIALS (2021)

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Article Nanoscience & Nanotechnology

Styrene-Based Poly(ethylene oxide) Side-Chain Block Copolymers as Solid Polymer Electrolytes for High-Voltage Lithium-Metal Batteries

Andreas J. Butzelaar et al.

Summary: In this study, a novel polymer electrolyte with microphase separation, high ionic conductivity, and good mechanical stability was designed and studied for its application in high-voltage lithium-metal batteries. Experimental results demonstrated that this new polymer electrolyte can effectively suppress dendrite growth in lithium batteries and improve oxidative stability.

ACS APPLIED MATERIALS & INTERFACES (2021)

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Article Nanoscience & Nanotechnology

A Polymer-in-Salt Electrolyte with Enhanced Oxidative Stability for Lithium Metal Polymer Batteries

Haiping Wu et al.

Summary: The newly developed polymer-in-salt electrolyte (PISE) provides a method to improve the oxidative stability of lithium metal polymer batteries (LMPBs) while maintaining high charge capacity. The solid-state PISEs prepared with a special process exhibit excellent performance, offering a promising pathway towards high-voltage stable LMPBs.

ACS APPLIED MATERIALS & INTERFACES (2021)

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Article Chemistry, Multidisciplinary

Developing Polymer-in-Salt High Voltage Electrolyte Based on Composite Lithium Salts for Solid-State Li Metal Batteries

Hao Li et al.

Summary: A novel polymer-in-salt solid electrolyte was developed through a supramolecular strategy, showing high ionic conductivity, wide electrochemical window, superior lithium-ion transference number, and good interface compatibility with electrodes. It provides a promising solution to high voltage compatibility and interfacial issues in solid-state batteries.

ADVANCED FUNCTIONAL MATERIALS (2021)

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Article Chemistry, Multidisciplinary

Li2S6-Integrated PEO-Based Polymer Electrolytes for All-Solid-State Lithium-Metal Batteries

Ruyi Fang et al.

Summary: The integration of Li2S6 within a PEO-based polymer electrolyte improves its ionic conductivity and stability of Li/electrolyte interface, suppressing lithium dendrite growth. This results in impressive electrochemical performance in various Li-ion battery systems.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2021)

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Review Chemistry, Multidisciplinary

Molecular engineering of carbonyl organic electrodes for rechargeable metal-ion batteries: fundamentals, recent advances, and challenges

Haoqi Yang et al.

Summary: This review summarizes molecular engineering strategies for enhancing the electrochemical performance of carbonyl organic compounds, focusing on the advantages and disadvantages of each strategy. Key investigations on the reaction mechanism of carbonyl organic electrodes have been highlighted, along with a deeper evaluation of critical challenges and future perspectives for practical battery systems.

ENERGY & ENVIRONMENTAL SCIENCE (2021)

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Article Nanoscience & Nanotechnology