High Capacity, Dendrite‐Free Growth, and Minimum Volume Change Na Metal Anode

Zhao, Yang; Yang, Xiaofei; Kuo, Liang-Yin; Kaghazchi, Payam; Sun, Qian; Liang, Jianneng; Wang, Biqiong; Sun, Xueliang; Li, Ruying; Zhang, Huamin

doi:10.1002/smll.201703717

Cited by 113 publications

(78 citation statements)

References 36 publications

(47 reference statements)

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“…The full survey spectrum verifies high doping level of N (3.80%) and S (3.44%), where N‐doping is derived from the dopamine precursor and S originates from the CdS template (Figure S4 and Table S1, Supporting Information). High‐resolution N 1s XPS spectrum can be fitted into three peaks, assigning to quaternary N (402.6 eV, 19.89 atomic%), pyrrolic N (400.5 eV, 45.55 atomic%), and pyridinic N (397.9 eV, 34.56 atomic%) (Figure d and Table S2, Supporting Information) . The peaks observed at 163.9 eV (S 2p 3/2 ) and 162.7 eV (S 2p 1/2 ) from S 1s spectrum correspond to the C‐S‐C functional group, proving as a direct evidence of S doping into the carbon skeleton (Figure e).…”

Section: Resultsmentioning

confidence: 99%

Boosting the Reversibility of Sodium Metal Anode via Heteroatom‐Doped Hollow Carbon Fibers

Zheng

Cao

et al. 2019

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Sodium (Na) metal anodes stand out with their remarkable capacity and natural abundance. However, the dendritic Na growth, infinite dimensional changes, and low Coulombic efficiency (CE) present key bottlenecks plaguing practical applications. Here, heteroatom‐doped (nitrogen, sulfur) hollow carbon fibers (D‐HCF) are rationally synthesized as a nucleation‐assisting host to enable a highly reversible Na metal. The “sodiophilic” functional groups introduced by the heteroatom‐doping and large surface area (≈1052 m2 g−1) synchronously contribute to a homogenous plating morphology with dissipated local current density. High “sodiophilicity” of the D‐HCF is confirmed by first‐principle calculations and experimental results, where strong adsorption energy of −3.52 eV with low Na+ nucleation overpotential of 3.2 mV at 0.2 mA cm−2 is realized. As such, highly reversible plating/stripping is achieved at 1.0 mA cm−2 with average CE approximating 99.52% over 600 cycles. The as‐assembled Na@D‐HCF symmetric cells exhibit a prolonged lifetime for 1000 h. A full‐cell paired with Na3V2(PO4)3 cathode further demonstrates stable electrochemical behavior for 200 cycles at 1 C along with excellent rate performance (102 mAh g−1 at 5 C). The results clearly show the effectiveness of the D‐HCF in manipulating Na+ deposition and thus the significance of nucleation control in realizing dendrite‐free metal anodes.

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Section: Resultsmentioning

confidence: 99%

Boosting the Reversibility of Sodium Metal Anode via Heteroatom‐Doped Hollow Carbon Fibers

Zheng

Cao

et al. 2019

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“…Moreover, wood‐derived porous carbon materials with vertical channels were reported by Hu and co‐workers as a 3D porous host for Na metal . Sun and co‐workers further developed this infusion strategy and prepared Na/N‐doped carbon nanotube (NCNT) decorated carbon paper (CP) (Na@CP‐NCNTs) anodes for Na‐metal batteries …”

Section: Strategies For Efficient Use Of Na Metal Anodesmentioning

confidence: 99%

Design Strategies to Enable the Efficient Use of Sodium Metal Anodes in High‐Energy Batteries

et al. 2019

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Sodium-based batteries have attracted considerable attention and are recognized as ideal candidates for large-scale and low-cost energy storage. Sodium (Na) metal anodes are considered as one of the most promising anodes for next-generation, high-energy, Na-based batteries owing to their high theoretical specific capacity (1166 mA h g −1 ) and low standard electrode potential. Herein, an overview of the recent developments in Na metal anodes for high-energy batteries is provided. The high reactivity and large volume expansion of Na metal anodes during charge and discharge make the electrode/electrolyte interphase unstable, leading to the formation of Na dendrites, short cycle life, and safety issues. Design strategies to enable the efficient use of Na metal anodes are elucidated, including liquid electrolyte engineering, electrode/electrolyte interface optimization, sophisticated electrode construction, and solid electrolyte engineering. Finally, the remaining challenges and future research directions are identified. It is hoped that this progress report will shape a consistent view of this field and provide inspiration for future research to improve Na metal anodes and enable the development of high-energy sodium batteries.

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“…92,93 Thirdly, the infinite volume change of metal anodes during the plating/stripping has also been observed recently and considered a significant problem for the ''hostless'' metal anodes. 88,94,95 To solve the issues and enhance the performance for Li metal anodes, different strategies have been developed to stabilize the SEI. One effective approach is to create an artificial SEI film through surface coating.…”

Section: Ald/mld To Address Interfacial Problems In Ssbsmentioning

confidence: 99%

Addressing Interfacial Issues in Liquid-Based and Solid-State Batteries by Atomic and Molecular Layer Deposition

Zhao

Zheng

Sun

2018

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Solid-state batteries (SSBs) have attracted increasing attention as one of the most promising next-generation batteries. However, various challenges remain for SSBs toward practical applications. Particularly, the interfacial issues between solid-state electrolyte (SSEs) and electrodes are critical factors affecting the performances of SSBs. Atomic and molecular layer deposition (ALD and MLD) are considered as ideal strategies for overcoming the interfacial issues facing SSBs. In the past years, promising progress has been reported using ALD/MLD to overcome the interfacial drawbacks in SSBs. In this Review, we summarize the recent progress of ALD/MLD techniques in the application of Li batteries, with a special focus on current progress in the shift from liquid to solid cells. Different sections, including the fabrication of interfacial materials, interfacial engineering on SSEs and electrodes, and thinfilm/3D SSBs, are discussed in detail. Moreover, the future directions and perspectives of ALD/MLD in interface engineering for SSBs are disclosed.

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High Capacity, Dendrite‐Free Growth, and Minimum Volume Change Na Metal Anode

Cited by 113 publications

References 36 publications

Boosting the Reversibility of Sodium Metal Anode via Heteroatom‐Doped Hollow Carbon Fibers

Boosting the Reversibility of Sodium Metal Anode via Heteroatom‐Doped Hollow Carbon Fibers

Design Strategies to Enable the Efficient Use of Sodium Metal Anodes in High‐Energy Batteries

Addressing Interfacial Issues in Liquid-Based and Solid-State Batteries by Atomic and Molecular Layer Deposition

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