Li-B Alloy as an Anode Material for Stable and Long Life Lithium Metal Batteries

Liu, Qiang; Zhou, Sisi; Cong, Tao; Zhai, Qiaoling; Zhang, Xianggong; Wang, Rui

doi:10.3390/en11102512

Cited by 20 publications

(11 citation statements)

References 23 publications

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“…The presence of Li 3 N, LiNO 2, and LiNO 3 in the modification layer may enhance the ionic conductivity, improve the stability of SEI film, and ensure the uniform and rapid deposition of Li ions. According to previous reports on LiM (M = Ga, Al, [ 40,51 ] In, [ 21 ] B, [ 60 ] Sn, [ 61 ] Bi, and Zn),the liquid Ga alloy can act as a nuclear agent to reduce the overpotential and relieve the dendrite growth. In addition, the low‐melting‐point Ga alloy may further introduce self‐healing effect.…”

Section: Resultsmentioning

confidence: 99%

In Situ‐Formed Dual‐Conductive Protecting Layer for Dendrite‐Free Li Metal Anodes in All‐Solid‐State Batteries

et al. 2021

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Lithium metal anode is regarded as one of the most promising electrode materials for high energy‐rechargeable batteries. Nevertheless, the utilization of lithium metal anode suffers from the detrimental lithium dendrite growth caused by uneven lithium deposition. Herein, a dual‐conductive protecting layer is formed in situ on a lithium metal surface as an artificial solid electrolyte interface, which is composed of electronic‐conductive lithiophilic lithium–gallium alloy and lithium‐ion‐conductive lithium nitride. The protective layer can not only ensure uniform lithium‐ion diffusion but also act as a nuclear agent to lower the deposition overpotential. With this artificial solid–electrolyte interface, the dendrite growth of lithium is significantly suppressed. Symmetric half cells and full cells with a modified lithium metal anode exhibit significantly improved electrochemical performance compared with the bare lithium metal anode.

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Section: Resultsmentioning

confidence: 99%

In Situ‐Formed Dual‐Conductive Protecting Layer for Dendrite‐Free Li Metal Anodes in All‐Solid‐State Batteries

et al. 2021

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“…With the entrapment of free lithium in a 3D fibrous Li7B6 framework as an anode, a Li-S cell demonstrated a capacity retention of 2000 cycles at 1C (1C = 1675 mAh g −1 ) with a CE of 91-92%. A full cell comprising an anode with Li embedded in Li7B6 and LiFePO4 cathode retained 95% capacity after 300 cycles at 0.5C [298]. A Li-S cell with an Al-Li alloy anode delivered an average capacity of 480 mAh g −1 with a CE close to 100% over 200 cycles at 200 mA g −1 (see Figure 22) [299].…”

Section: Other Li-metal Alloyingmentioning

confidence: 99%

Remedies to Avoid Failure Mechanisms of Lithium-Metal Anode in Li-Ion Batteries

Mauger

Julien

2021

Inorganics

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Rechargeable lithium-metal batteries (LMBs), which have high power and energy density, are very attractive to solve the intermittence problem of the energy supplied either by wind mills or solar plants or to power electric vehicles. However, two failure modes limit the commercial use of LMBs, i.e., dendrite growth at the surface of Li metal and side reactions with the electrolyte. Substantial research is being accomplished to mitigate these drawbacks. This article reviews the different strategies for fabricating safe LMBs, aiming to outperform lithium-ion batteries (LIBs). They include modification of the electrolyte (salt and solvents) to obtain a highly conductive solid–electrolyte interphase (SEI) layer, protection of the Li anode by in situ and ex situ coatings, use of three-dimensional porous skeletons, and anchoring Li on 3D current collectors.

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“…So, the ever-increasing demand for higher energy densities has promoted the research using lithium metal as anode electrode [7]. However, the development of Li-metal batteries using traditional liquid electrolyte is plagued by the side reaction between electrolyte and lithium metal and the growth of lithium dendrites [8,9]. In this respect, all-solid-state lithium-metal batteries (ASSLMBs) with solid-state electrolytes (SSEs) are considered next generation battery technology to meet the needs of high energy density and safety [10].…”

Section: Introductionmentioning

confidence: 99%

An All-Solid-State Lithium Metal Battery Based on Electrodes-Compatible Plastic Crystal Electrolyte

et al. 2021

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Solid-state plastic crystal electrolytes (SPCEs) have attracted much attention due to their high ionic conductivity at room temperature and polymer-like plasticity. Herein, we made a LiFePO4||Li solid state battery based on SPCEs. A SPCE film is made up of glass fiber, succinonitrile (SN), lithium bis (triflu-romethanesulphonyl) imid (LiTFSI), and LiNO3. Glass fiber is introduced to improve the mechanical property, and LiNO3 served as an additive to stabilize electrolyte/Li interface. The SPCE film delivers a high ionic conductivity of 7.3 × 10−4 S cm−1 at room temperature and has excellent stability with Li-metal anode. SPCE is also infused into cathode electrode and used as the interface with cathode particles, which can access a large interface contact area and deform reversibly with volume change. The LiFePO4||Li solid state battery based on SPCE can work well at ambient temperature, which shows a high initial specific capacity of 121.4 mAh g−1 and has 86.9% retention after 90 cycles at 0.5 C.

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Li-B Alloy as an Anode Material for Stable and Long Life Lithium Metal Batteries

Cited by 20 publications

References 23 publications

In Situ‐Formed Dual‐Conductive Protecting Layer for Dendrite‐Free Li Metal Anodes in All‐Solid‐State Batteries

In Situ‐Formed Dual‐Conductive Protecting Layer for Dendrite‐Free Li Metal Anodes in All‐Solid‐State Batteries

Remedies to Avoid Failure Mechanisms of Lithium-Metal Anode in Li-Ion Batteries

An All-Solid-State Lithium Metal Battery Based on Electrodes-Compatible Plastic Crystal Electrolyte

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