Boron‐Doped Electrolytes as Interfacial Modifiers for High‐Rate Stable Lithium Metal Batteries

Zhu, Dawei; Xu, Jizheng; Ding, Kan; Xu, Qing; Shi, Penghui; Min, Yulin

doi:10.1002/adfm.202213822

Cited by 5 publications

(1 citation statement)

References 25 publications

(28 reference statements)

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“…[ 5–9 ] To solve this problem, all‐solid‐state batteries (ASSBs) with solid electrolyte have been developed. [ 10–15 ] The nature of the solid‐state electrolyte (SSE) determines the kinetic properties of batteries. Among the three main types of SSEs, polymer, inorganic oxide and sulfide electrolytes, oxide SSEs exhibit excellent compatibility with commercial oxide cathode materials, but their large interfacial resistances remain the major challenge.…”

Section: Introductionmentioning

confidence: 99%

Thermal‐Induced Structure Evolution at the Interface between Cathode and Solid‐State Electrolyte

Lei,

Wang,

et al. 2023

Small Structures

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The interfaces between the electrode and solid‐state electrolyte play a decisive role in the performance of all‐solid‐state batteries. For example, the formation of the interphase between cathode and solid‐state electrolyte can affect interfacial impedance and thus the rate capability. Herein, the thermal stability at the solid–solid interface between LiMn2O4 cathode and garnet electrolyte LLZTO via combined in situ techniques is studied, including in situ X‐Ray diffraction, in situ transmission electron microscopy, and in situ Raman. The dynamic process of interfacial reaction at different scales is elucidated. Starting from 300 °C, Mn ions from LiMn2O4 would migrate into the solid‐state electrolyte, accompanied with the formation of LiMn3O4 interphase. As the temperature increases to 500 °C, the LiMn3O4 interphase transforms to MnO structure which hinders Li‐ion transportation and therefore increases the interfacial impedance. Although both LiMn2O4 and LLZTO could withstand continuous heating, their interface is inherently thermally unstable at relatively low temperature, which requires special attention during thermal treatment for practical fabrication. Findings provide mechanistic insights into the interfacial reaction which serves as a guidance for the design and manufacturing of all‐solid‐state batteries.

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Section: Introductionmentioning

confidence: 99%

Thermal‐Induced Structure Evolution at the Interface between Cathode and Solid‐State Electrolyte

Lei,

Wang,

et al. 2023

Small Structures

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Fast Charging Lithium Metal Batteries with Liquid and Solid‐State Electrolytes

Park,

Song,

Lee

2023

Batteries & Supercaps

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The advent of fast charging technologies has revolutionized the field of energy storage, promising shorter charging times for lithium metal batteries. However, the pursuit of rapid charging capabilities presents several challenges, primarily due to the formation of lithium dendrites, which in turn, can lead to thermal runaway and safety risks. In this review, we first discuss the growth behaviour of lithium metal in both liquid and solid‐state electrolytes. Then, we outline the challenges and recent progress in lithium metal batteries, particularly under fast charging conditions. Furthermore, we present comprehensive summary of the literatures on lithium metal batteries cycled at high current densities, investigating their performance with both liquid and solid‐state electrolytes. Finally, we propose perspectives on various strategies aimed at addressing the challenges associated with lithium metal batteries under fast charging conditions.

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Ultrafine Iron Boride as a Highly Efficient Nanocatalyst Expedites Sulfur Redox Electrochemistry for High‐Performance Lithium‐Sulfur Batteries

Chen,

Li,

Wang

et al. 2024

Batteries & Supercaps

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Lithium‐sulfur (Li‐S) batteries have garnered significant interest as a strong contender for future energy storage, characterized by their remarkable energy density and cost‐effectiveness. However, the sluggish conversion kinetics of the polysulfide intermediates, compounded with their shuttling behaviors, pose considerable challenges in sulfur electrochemistry. Herein, we develop a novel iron monoboride (FeB) electrocatalyst for boosting sulfur reactions and enhancing Li‐S battery performance. The ultrafine powdery FeB affords abundant and fully exposed active interfaces for host‐guest interactions. Meanwhile, the intrinsic high conductivity of FeB, combined with its strong adsorption and catalytic activity to polysulfides, enables substantial inhibition of the shuttle effect and enhancement of conversion kinetics. As a result, sulfur electrodes equipped with the FeB nanocatalyst realize excellent cyclability with a minimal capacity fading of 0.04 % per cycle over 500 cycles, as well as favorable rate capability up to 7 C. Moreover, decent areal capacity and cycling stability can be also achieved under high‐loading (5.1 mg cm‐2) and limited‐electrolyte (7.0 mL g‐1) configurations. This study presents a facile approach and insightful perspective on nanostructured metal boride for highly efficient sulfur electrocatalysis, holding good promise for the advancement of high‐performance Li‐S batteries.

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Boron‐Doped Electrolytes as Interfacial Modifiers for High‐Rate Stable Lithium Metal Batteries

Cited by 5 publications

References 25 publications

Thermal‐Induced Structure Evolution at the Interface between Cathode and Solid‐State Electrolyte

Thermal‐Induced Structure Evolution at the Interface between Cathode and Solid‐State Electrolyte

Fast Charging Lithium Metal Batteries with Liquid and Solid‐State Electrolytes

Ultrafine Iron Boride as a Highly Efficient Nanocatalyst Expedites Sulfur Redox Electrochemistry for High‐Performance Lithium‐Sulfur Batteries

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