Strategies towards Low‐Cost Dual‐Ion Batteries with High Performance

Zhou, Xiaolong; Liu, Qirong; Jiang, Caihui; Ji, Bifa; Ji, Xiulei; Tang, Yongbing; Cheng, Hui‐Ming

doi:10.1002/anie.201814294

Cited by 295 publications

(188 citation statements)

References 255 publications

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“…However, the development of DIBs is still hindered by the relatively low energy density, which results from the limited theoretical capacity of anions intercalation in graphite (140 mAh g −1 for C 16 PF 6 ), [ 3 ] low tap density, and large consumption of electrolyte. [ 4 ] To address this issue, structural modification of graphite to improve the intercalation capacity of anions and exploring high concentration electrolyte are effective approaches. [ 5 ] An alternative solution is to pair the graphite cathode with compatible high‐capacity anode materials.…”

Section: Figurementioning

confidence: 99%

Flexible Interface Design for Stress Regulation of a Silicon Anode toward Highly Stable Dual‐Ion Batteries

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intercalate into graphite layers of anode and cathode, respectively. Reverse reactions occur during the discharging process. However, the development of DIBs is still hindered by the relatively low energy density, which results from the limited theoretical capacity of anions intercalation in graphiteThe ORCID identification number(s) for the author(s) of this article can be found under https://doi.

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Section: Figurementioning

confidence: 99%

Flexible Interface Design for Stress Regulation of a Silicon Anode toward Highly Stable Dual‐Ion Batteries

et al. 2020

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“…In addition, the Coulombic efficiency is increasing over the cycling, which may be attributed to the following factors. [ 52 ] Initially, due to the large size of the anion, the partially irreversible process occurs during the anion intercalation reaction, causing the trapping effect. Additionally, the unstable solid electrolyte interphase (SEI) film is formed at the electrode, resulting in the irreversible capacity.…”

Section: Resultsmentioning

confidence: 99%

A Tetrakis(terpyridine) Ligand–Based Cobalt(II) Complex Nanosheet as a Stable Dual‐Ion Battery Cathode Material

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Deng

Meng

et al. 2020

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“…It is estimated that 1/3 of the world's Li storage could be consumed by 2050. [ 14,15 ] Therefore, seeking suitable alternatives for Li is an urgent task.…”

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confidence: 99%

A Ternary Hybrid‐Cation Room‐Temperature Liquid Metal Battery and Interfacial Selection Mechanism Study

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uniformizing the current, stabilizing the solid electrolyte interphase (SEI), releasing the mechanical stress on electrodes, etc., to eliminate the danger of dendrite and the successive problems like continuous electrolyte/Li consumption. [6][7][8][9][10][11][12][13] Not only the intrinsic properties make the use of Li metal a problem, there is growing concern about Li storage in the future considering the rapid growth of the electric vehicle market and the uneven distribution of Li resources. It is estimated that 1/3 of the world's Li storage could be consumed by 2050. [14,15] Therefore, seeking suitable alternatives for Li is an urgent task.Differing from Li in solid state, liquid metals or alloys (LMs), due to the fluidity and high surface tension allowing spontaneous release of the surface strain, are intrinsically free of dendrites. In early years, the LM battery was proposed and reported, with molten LMs as electrodes and molten-salt or solid ceramic electrolytes. [16,17] Due to large bond strengths of metallic bonds, this type of batteries normally needs very high temperature to melt metals, which could cause further issues related to sealing, corrosion, and high cost for rigorous thermal and sealing management. Recently, fusible alloys, maintaining liquid phase under room temperature, have been reported as electrode materials. Fusible alloys including Ga-based alloys (Ga-In, Ga-Sn, etc.) and alkali-based alloys (Na-K, Na-Cs, etc.) are reported as conversion-based alkali-ion anodes or direct anodes containing two or more alkali metal species. [18][19][20][21][22][23][24] Due to the high earth abundance, potentially low cost, and comparably low potentials (−2.71 V for Na and −2.92 V for K) relative to the −3.01 V for Li, the Na-K liquid alloy becomes an ideal choice to replace Li. [25] These two species are fusible to form a liquid alloy by direct contact, and the resulting alloy has a large liquidus range from around 15% to 70% atomic concentration of Na at room temperature, and a eutectic point as low as −12.6 °C at 32% atomic percent of Na. [26] It indicates a 78.6% of consumable alloy content to remain the alloy in liquid phase as anode at room temperature.Although Na-K alloy has many advantages, the challenges are clear-the complex battery chemistry with more than one species of cation in the system has not been completely understood and the cathodes for neither of the two species are as stable or well-studied as Li-ion cathodes. Because of the larger size of Na and K ions, some of the previously studied Li ion cathodes are not applicable for Na or K in most cases, and the Adv. Mater. 2020, 32, 2000316

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Strategies towards Low‐Cost Dual‐Ion Batteries with High Performance

Cited by 295 publications

References 255 publications

Flexible Interface Design for Stress Regulation of a Silicon Anode toward Highly Stable Dual‐Ion Batteries

Flexible Interface Design for Stress Regulation of a Silicon Anode toward Highly Stable Dual‐Ion Batteries

A Tetrakis(terpyridine) Ligand–Based Cobalt(II) Complex Nanosheet as a Stable Dual‐Ion Battery Cathode Material

A Ternary Hybrid‐Cation Room‐Temperature Liquid Metal Battery and Interfacial Selection Mechanism Study

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