Tantalum oxide nanosheets/polypropylene composite separator constructing lithium-ion channels for stable lithium metal batteries

Chen, Long; Lin, Xiaohui; Dang, Weiqi; Liu, Guoxia; Yang, Zhenyu

doi:10.1007/s42114-022-00589-x

Cited by 30 publications

(17 citation statements)

References 44 publications

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“…The small overpotential and high Li + conductivity demonstrate the inhibition of anion migration, which significantly regulates Li + flow and provides a more reversible LMB. The electrochemical performance of symmetrical LMB is summarized in Figure e, where the LMB performance shown in this work is better than those of previously reported works using septal modification. − …”

Section: Resultsmentioning

confidence: 99%

Stabilizing Lithium Metal Batteries by Synergistic Effect of High Ionic Transfer Separator and Lithium–Boron Composite Material Anode

Naren,

Jiang,

Qing

et al. 2023

ACS Nano

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The development of lithium (Li) metal batteries (LMBs) has been limited by problems, such as severe dendrite growth, drastic interfacial reactions, and large volume change. Herein, an LMB (8AP@LiB) combining agraphene oxide-poly(ethylene oxide) (PEO) functionalized polypropylene separator (8AP) with a lithium−boron (LiB) anode is designed to overcome these problems. Raman results demonstrate that the PEO chain on 8AP can influence the Li + solvation structure in the electrolyte, resulting in Li + homogeneous diffusion and Li + deposition barrier reduction. 8AP exhibits good ionic conductivity (4.9 × 10 −4 S cm −1 ), a high Li + migration number (0.88), and a significant electrolyte uptake (293%). The 3D LiB skeleton can significantly reduce the anode volume changes and local current density during the charging/discharging process. Therefore, 8AP@LiB effectively regulates the Li + flux and promotes the uniform Li deposition without dendrites. The Li||Li symmetrical cells of 8AP@LiB exhibit a high electrochemical stability of up to 1000 h at 1 mA cm −2 and 5 mAh cm −2 . Importantly, the Li||LiFePO 4 full cells of 8AP@LiB achieve an impressive 2000 cycles at 2C, while maintaining a high-capacity retention of 86%. The synergistic effect of the functionalized separator and LiB anode might provide a direction for the development of high-performance LMBs.

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Section: Resultsmentioning

confidence: 99%

Stabilizing Lithium Metal Batteries by Synergistic Effect of High Ionic Transfer Separator and Lithium–Boron Composite Material Anode

Naren,

Jiang,

Qing

et al. 2023

ACS Nano

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“…[6][7][8] Due to the characteristics of its own molecular structure, polypropylene has excellent insulation, corrosion resistance and good mechanical properties. 9 It is widely used in vehicle parts and some construction buildings and has the advantages of easy processing and low cost. 10 Polypropylene random copolymer (PP-R) is a kind of polypropylene.…”

Section: Introductionmentioning

confidence: 99%

Effect of hydrophobic nano‐silica/β‐nucleating agent on the crystallization behavior and mechanical properties of polypropylene random copolymers

Chen,

Bai,

Wang

et al. 2023

Polymer International

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In this work, hydrophobic nano‐silica (SiO2) and β‐nucleating agent are incorporated into polypropylene random copolymer (PP‐R) matrix by melt blending. The effect of nano‐SiO2/β‐nucleating agents content on crystallization and mechanical behaviors of polypropylene random copolymer was investigated in detail. When the nano‐SiO2 was 0.5 wt% and the β‐nucleating agent content was 0.5 wt%, the tensile strength and impact strength of the composite were in a more balanced position. Regarding isothermal and non‐isothermal crystallization experiments, nano‐SiO2/β‐nucleating agent significantly accelerated the nucleation and growth of crystallites with a synergistic nucleation effect. Also, the crystallization kinetics of PP‐R/nano‐SiO2 /β‐nucleating agent, PP‐R/nano‐SiO2 and PP‐R/β‐nucleating agent composites were analyzed and compared by Avrami equation. The results showed that the PP‐R/nano‐SiO2/β‐nucleating agent composites have better crystallization rate and shorter semi‐crystallization time. This study shows that it has far‐reaching theoretical and practical implications for accelerating the development of new high‐performance PP‐R materials.This article is protected by copyright. All rights reserved.

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“…[1][2][3][4][5][6][7] Lead-acid batteries and lithium-ion batteries currently lead the market for secondary batteries. [8][9][10][11][12] However, due to the toxic substances contained in organic electrolytes of lead metal and Li-ion batteries, 13,14 they do not meet the core principle of carbon neutrality. As such, aqueous batteries have gradually emerged as potential alternatives in electrochemical storage systems.…”

Section: Introductionmentioning

confidence: 99%

Ostwald ripening mechanism-derived MnOOH induces lattice oxygen escape for efficient aqueous MnO₂–Zn batteries

Zheng,

Qin,

Chen

et al. 2023

J. Mater. Chem. A

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Tantalum oxide nanosheets/polypropylene composite separator constructing lithium-ion channels for stable lithium metal batteries

Cited by 30 publications

References 44 publications

Stabilizing Lithium Metal Batteries by Synergistic Effect of High Ionic Transfer Separator and Lithium–Boron Composite Material Anode

Stabilizing Lithium Metal Batteries by Synergistic Effect of High Ionic Transfer Separator and Lithium–Boron Composite Material Anode

Effect of hydrophobic nano‐silica/β‐nucleating agent on the crystallization behavior and mechanical properties of polypropylene random copolymers

Ostwald ripening mechanism-derived MnOOH induces lattice oxygen escape for efficient aqueous MnO₂–Zn batteries

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Tantalum oxide nanosheets/polypropylene composite separator constructing lithium-ion channels for stable lithium metal batteries

Cited by 30 publications

References 44 publications

Stabilizing Lithium Metal Batteries by Synergistic Effect of High Ionic Transfer Separator and Lithium–Boron Composite Material Anode

Stabilizing Lithium Metal Batteries by Synergistic Effect of High Ionic Transfer Separator and Lithium–Boron Composite Material Anode

Effect of hydrophobic nano‐silica/β‐nucleating agent on the crystallization behavior and mechanical properties of polypropylene random copolymers

Ostwald ripening mechanism-derived MnOOH induces lattice oxygen escape for efficient aqueous MnO2–Zn batteries

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Ostwald ripening mechanism-derived MnOOH induces lattice oxygen escape for efficient aqueous MnO₂–Zn batteries