Processing robust lithium metal anode for high-security batteries: A minireview

Wang, Zhenkang; Cao, Yufeng; Zhou, Jinqiu; Liu, Jie; Shen, Xiaowei; Ji, Haoqing; Yan, Chenglin; Qian, Tao

doi:10.1016/j.ensm.2022.01.049

Cited by 31 publications

(18 citation statements)

References 103 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In addition, Li dendrites pierce the separator, resulting in thermal runaway and a series of safety hazards. These problems have brought severe challenges to the commercial application of LMBs. − …”

Section: Introductionmentioning

confidence: 99%

N-Doped C/ZnO-Modified Cu Foil Current Collector for a Stable Anode of Lithium-Metal Batteries

Zhang

Chen

et al. 2022

Ind. Eng. Chem. Res.

View full text Add to dashboard Cite

The security concerns and poor stability caused by lithium (Li) dendrites and volume changes are the main obstacles posed by the Li-metal batteries (LMBs). These serious issues need to be addressed before LMBs can be commercialized. Herein, a simple way to process the ZIF-8 precursor was designed to oxidize Zn to ZnO; at the same time, the surface of ZnO was coated with a layer of N-doped carbon material to prepare N-doped C/ZnO (NCZ) composite anode. As a lithiophilic framework, the NCZ composite anode acts as a steady Li "host" during the deposition/stripping process of Li. N doping not only improves the conductivity but also provides additional active sites for the deposition of Li. The LiZn alloy formed by ZnO and Li + promotes the uniform deposition and distribution of Li and mitigates the Li dendrite formation caused by an uneven Li-ion distribution. The conductive carbon interconnection framework provides convenient electron/ion transmission channels and alleviates the volume change. Combined with the above strengths, the Li/CF@NCZ composite symmetrical cell has a good cycle endurance of over 1600 h with an ultralow voltage hysteresis (22 mV) at 5 mA cm −2 with 5 mAh cm −2 . This study presents a facile strategy for developing dendrite-free Li-metal anodes.

show abstract

Section: Introductionmentioning

confidence: 99%

N-Doped C/ZnO-Modified Cu Foil Current Collector for a Stable Anode of Lithium-Metal Batteries

Zhang

Chen

et al. 2022

Ind. Eng. Chem. Res.

View full text Add to dashboard Cite

show abstract

“…[ 25 ] On the other hand, the 3D hosts could reduce the volume fluctuation by several times and improve stability by localizing the overall volume variation (10–60 µm for 2–10 mAh cm −2 ), improving the electrochemical properties of lithium metal anodes. [ 26,27 ] Nevertheless, in most instances, the 3D hosts are relatively thick (over 100 µm) and with randomly arranged structures. [ 28–31 ] According to the diffusion coefficient equation

\left( {{D_{{\rm{eff}}}} = D \times \frac{\varepsilon }{\tau }} \right)

(ε is porosity and τ is tortuosity), the conductive pathways is decided by the ε and τ.…”

Section: Introductionmentioning

confidence: 99%

“…[25] On the other hand, the 3D hosts could reduce the volume fluctuation by several times and improve stability by localizing the overall volume variation (10-60 µm for 2-10 mAh cm −2 ), improving the electrochemical properties of lithium metal anodes. [26,27] Nevertheless, in most instances, the 3D hosts are relatively thick (over 100 µm) and with randomly arranged structures. [28][29][30][31] According to the diffu-…”

mentioning

confidence: 99%

Low‐Tortuous MXene (TiNbC) Accordion Arrays Enabled Fast Ion Diffusion and Charge Transfer in Dendrite‐Free Lithium Metal Anodes

Cao

Chen

et al. 2022

Advanced Energy Materials

View full text Add to dashboard Cite

The widespread implementation of lithium metal anodes is indispensable for reviving high energy density lithium metal batteries. However, the sluggish ion diffusion and high charge‐transfer resistance in metallic lithium anodes hamper their rate capability and practical applications. Here, low tortuous MXene arrays are developed through the ultrafast spreading of an aqueous accordion‐like TiNbC‐MXene dispersion onto a hydrophobic surface. The low tortuous MXene arrays facilitate the fast infiltration of electrolytes, enabling the rapid diffusion of lithium ions. The MXene arrays with Nb species significantly improve the charge transfer in the electrode, homogenizing the electric field. Thus, the low tortuous MXene arrays constructed electrode without lithium dendrites delivers a high‐rate capability (20 mA cm−2) with a long cycle life (2500 cycles). Full cells with the dendrite, low tortuosity MXene arrays as anode show a high rate cycle stability up to 1000 cycles (4 C) under conditions of low negative/positive capacity ratio (2.0).

show abstract

“…However, the internal resistance containing the additional cladding layer gradually increases during the plating/stripping process after building an artificial film on the surface of Li metal. The thicker solid interphase film also brings the sluggish transport of Li ions and aggravates long-cycle stability. , Designing an effective artificial film with functional groups that have a high affinity to lithium metal or the liquid electrolyte on the surface Li anode to guide the Li-ion flux can greatly avoid this situation. , Especially, the anion groups of sulfonate, phosphate, and nitrate have strong electronegativity, which can dissolve lithium salts well and reduce Li nucleation. The artificial film containing ionic groups not only slows the liquid electrolyte degradation near the electrode to reduce side reaction on the surface of the Li anode but also regulates Li-ion flux to eliminate the production of Li dendrites. , …”

Section: Introductionmentioning

confidence: 99%

“…17,18 Designing an effective artificial film with functional groups that have a high affinity to lithium metal or the liquid electrolyte on the surface Li anode to guide the Li-ion flux can greatly avoid this situation. 19,20 Especially, the anion groups of sulfonate, 21 phosphate, 22 and nitrate 23 have strong electronegativity, which can dissolve lithium salts well and reduce Li nucleation. The artificial film containing ionic groups not only slows the liquid electrolyte degradation near the electrode to reduce side reaction on the surface of the Li anode but also regulates Li-ion flux to eliminate the production of Li dendrites.…”

Section: Introductionmentioning

confidence: 99%

Rapid Formation of an Artificial Polymer Cladding on a Lithium Metal Anode by In Situ Ultraviolet Curing to Regulate Lithium Ion Flux

Quan

Zhu

et al. 2022

ACS Appl. Energy Mater.

View full text Add to dashboard Cite

As an ideal anode material of lithium metal for highenergy-density batteries, the development of lithium metal batteries (LMBs) has been limited by the Li dendrite's growth and accumulation of dead Li. To solve this problem, a highly elastic artificial polymer layer coated on the surface Li anode by rapid ultraviolet radical polymerization is developed. The clad poly-(methyl methacrylate-acrylic acid-sulfobetaine methacrylate) (P-(MMA-AA-SBMA)) terpolymer not only shows good interfacial compatibility with Li metal due to the surface formation process by in situ light solidification but also contains functional anion groups of −COO − and −SO 3 − , contributing the convenient channels to regulate the transport of Li ions. Ascribed from the stable interface of clad Li and the suppressed decomposition reaction of the liquid electrolyte in the later cycle stage, the Li||LiCoO 2 full cell exhibits good cycle stability, maintaining 96% of initial capacity after 100 cycles in 1C rate between 3 and 4.35 V, compared with that of 67% for bare Li. Thus, the artificial polymer cladding promotes the electrochemical stability of Li metal, providing a facile way for application in high-energy-density LMBs.

show abstract

Processing robust lithium metal anode for high-security batteries: A minireview

Cited by 31 publications

References 103 publications

N-Doped C/ZnO-Modified Cu Foil Current Collector for a Stable Anode of Lithium-Metal Batteries

N-Doped C/ZnO-Modified Cu Foil Current Collector for a Stable Anode of Lithium-Metal Batteries

Low‐Tortuous MXene (TiNbC) Accordion Arrays Enabled Fast Ion Diffusion and Charge Transfer in Dendrite‐Free Lithium Metal Anodes

Rapid Formation of an Artificial Polymer Cladding on a Lithium Metal Anode by In Situ Ultraviolet Curing to Regulate Lithium Ion Flux

Contact Info

Product

Resources

About