Doping effects of metal cation on sulfide solid electrolyte/lithium metal interface

Wang, Zhixuan; Jiang, Yong; Wu, Juan; Jiang, Yi; Ma, Wencheng; Shi, Yaru; Liu, Xiaoyu; Zhao, Bing; Xu, Yi; Zhang, Jiujun

doi:10.1016/j.nanoen.2021.105906

Cited by 74 publications

(27 citation statements)

References 42 publications

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“…[296][297][298] Nevertheless, theoretically, this strategy may be best used with electrolytes that are relatively stable toward lithium metal, such as LLZO, because that highly electronic conductivity of alloy phase will facilitate the parasitic reaction proceeding continuously in case the SEs are thermodynamically unstable against lithium metals (e.g., LGPS). 136,299,300 For example, Wang et al 301 systematically studied the effect of various elements (Mo, Zn, Fe, Sn, and Si) doping Li 7 P 3 S 11 on the interfacial properties of SE/Li. In their conclusions, despite that some element doping (e.g., Mo) can broaden Li + channels and create Li vacancies to promote ionic conduction of SEs, the doping of metallic elements (Mo, Zn, Fe, Sn) can lead to the formation of MIECs interfaces, resulting in the reduction of interfacial energy and migration rate of Li atoms at SEI, as well as the accumulation of electrons, thereby accelerating the SEI growth and lithium dendrites growth.…”

Section: Li-alloy Anodes or Alloy Interlayermentioning

confidence: 99%

“…Reproduced with permission. 301 Copyright 2021, Elsevier. (B) Illustration of in situ formation of the Li x Mg/LiF/polymer SEI between Li and LGPS; galvanostatic cycling of Li/LGPS/Li cells using LGPS with and without Mg(TFSI) 2 -LiTFSI treatment at step-increased current densities.…”

Section: Chemical Instability In Ambient Airmentioning

confidence: 99%

“…(A) Schematic diagrams of Li stripping behavior of LPS‐Mo solid electrolyte; galvanostatic discharge/charge voltage profiles of Li symmetric; diagram of the CCD of the doped LPS and the resistivity of the doping mental element. Reproduced with permission 301 . Copyright 2021, Elsevier.…”

Section: Interface Engineeringmentioning

confidence: 99%

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Challenges, interface engineering, and processing strategies toward practical sulfide‐based all‐solid‐state lithium batteries

Liang

Liu

Wang

et al. 2022

InfoMat

150

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All‐solid‐state lithium batteries have emerged as a priority candidate for the next generation of safe and energy‐dense energy storage devices surpassing state‐of‐art lithium‐ion batteries. Among multitudinous solid‐state batteries based on solid electrolytes (SEs), sulfide SEs have attracted burgeoning scrutiny due to their superior ionic conductivity and outstanding formability. However, from the perspective of their practical applications concerning cell integration and production, it is still extremely challenging to constructing compatible electrolyte/electrode interfaces and developing available scale processing technologies. This review presents a critical overview of the current underlying understanding of interfacial issues and analyzes the main processing challenges faced by sulfide‐based all‐solid‐state batteries from the aspects of cost‐effective and energy‐dense design. Besides, the corresponding approaches involving interface engineering and processing protocols for addressing these issues and challenges are summarized. Fundamental and engineering perspectives on future development avenues toward practical application of high energy, safety, and long‐life sulfide‐based all‐solid‐state batteries are ultimately provided.

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Section: Li-alloy Anodes or Alloy Interlayermentioning

confidence: 99%

Section: Chemical Instability In Ambient Airmentioning

confidence: 99%

See 1 more Smart Citation

Challenges, interface engineering, and processing strategies toward practical sulfide‐based all‐solid‐state lithium batteries

Liang

Liu

Wang

et al. 2022

InfoMat

150

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“…Tremendous strategies have been raised to tackle with the above thorny issues, including electrolyte additives, [ 12 , 13 , 14 ] solid‐state electrolytes, [ 15 , 16 ] artificial solid electrolyte interlayers (SEI). [ 17 , 18 , 19 ] Despite the electrochemical performance of Li metal can be enhanced to some extent, the dramatic volume change caused by the “hostless” nature of Li is also a seriously encountered challenge.…”

Section: Introductionmentioning

confidence: 99%

“…[8,9] Also, the infinite volume change during the charging/discharging process is still another crucial issue to be solved, which will cause serious interfacial contact failure. [10,11] Tremendous strategies have been raised to tackle with the above thorny issues, including electrolyte additives, [12][13][14] solidstate electrolytes, [15,16] artificial solid electrolyte interlayers (SEI). [17][18][19] Despite the electrochemical performance of Li metal can be enhanced to some extent, the dramatic volume change caused by the "hostless" nature of Li is also a seriously encountered challenge.…”

Section: Introductionmentioning

confidence: 99%

In Situ Construction of Efficient Interface Layer with Lithiophilic Nanoseeds toward Dendrite‐Free and Low N/P Ratio Li Metal Batteries

et al. 2022

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Li metal is considered as one of the most promising candidates for constructing advanced high‐energy energy storage due to its ultrahigh theoretical capacity and lowest electrochemical potential. However, its practical commercialization is seriously hindered by the challenges of Li dendrite growth, low Coulombic efficiency, and huge volumetric variation. Herein, an efficient in situ generated Li2S‐rich interface layer joint with preplanted Sb nano active sites in hosted Li metal anode is easily achieved with the nanosized Sb2S3 decorated carbonaceous network. The yielded CC@Sb2S3@Li anode demonstrates uniform Li deposition, high Coulombic efficiency, and alleviated volumetric variation. Therefore, the Li symmetric cells show ultralong lifespan stable cycling over 3200 cycles with a very low voltage hysteresis (≈18 mV) at 5 mA cm−2. Impressively, the Li|LiFePO4 full cell delivers an exceptionally prolonged cycling over 180 cycles with a superior capacity retention as high as ≈90% even under the harsh condition of an extremely low negative to positive capacity ratio of ≈0.44 with lean electrolyte (4.4 µL mAh−1). Moreover, the Li|LiNi0.5Co0.2Mn0.3O2 full cell also maintains an excellent cycling performance under the more realistic harsh conditions. This work provides a new avenue and significant step paving the Li metal toward the practical application.

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High Air Stability and Excellent Li Metal Compatibility of Argyrodite‐Based Electrolyte Enabling Superior All‐Solid‐State Li Metal Batteries

Liu

Zhu

Wang

et al. 2022

Adv Funct Materials

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Sulfide solid electrolytes (SSEs) for all‐solid‐state Li metal batteries (ASSLMBs) are attracting increasing attention due to their ultrahigh ionic conductivity and good machinability. However, current SSEs generally suffer from inferior Li metal compatibility and poor air‐stability, which severely impede their practical applications for ASSLMBs. Herein, novel argyrodite‐based SSEs of Li6+2xP1−xBixS5−1.5xO1.5xCl are synthesized via the Bi, O co‐doping the Li6PS5Cl for the first time. By adjusting the concentrations of dopant, the optimized Li6.04P0.98Bi0.02S4.97O0.03Cl presents an ultrahigh ionic conductivity (3.4 × 10−3 S cm−1). Moreover, such electrolyte displays splendid structural stability after exposure to humid air and chlorobenzene, demonstrating admirable air‐stability and solvent‐stability. The mechanism of the enhanced air‐stability of oxide‐doped SSEs is profoundly understood by conducting first‐principles density functional theory calculations. In addition, the Li6.04P0.98Bi0.02S4.97O0.03Cl electrolyte triggers the generation of LiBi alloy at the anode interface, which plays a crucial role in reducing Li+ diffusion energy barriers and improving interfacial compatibility, leading to an ultrahigh critical current density of 1.1 mA cm−2 and splendid cyclic stability in Li symmetric cell. As a result, ASSLMBs equipped with either pristine or air‐exposed Li6.04P0.98Bi0.02S4.97O0.03Cl can deliver satisfying discharge specific capacity at room temperature.

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Doping effects of metal cation on sulfide solid electrolyte/lithium metal interface

Cited by 74 publications

References 42 publications

Challenges, interface engineering, and processing strategies toward practical sulfide‐based all‐solid‐state lithium batteries

Challenges, interface engineering, and processing strategies toward practical sulfide‐based all‐solid‐state lithium batteries

In Situ Construction of Efficient Interface Layer with Lithiophilic Nanoseeds toward Dendrite‐Free and Low N/P Ratio Li Metal Batteries

High Air Stability and Excellent Li Metal Compatibility of Argyrodite‐Based Electrolyte Enabling Superior All‐Solid‐State Li Metal Batteries

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