A highly stable and flexible zeolite electrolyte solid-state Li–air battery

Chi, Xiwen; Li, Ma‐Lin; Di, Jiancheng; Bai, Pu; Song, Lina; Wang, Xiaoxue; Li, Fēi; Liang, Shuang; Xu, Ji‐Jing; Yu, Jihong

doi:10.1038/s41586-021-03410-9

Cited by 411 publications

(268 citation statements)

References 49 publications

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“…They store energy via insertion/extraction of Li ions, which highly depends on the crystal structure and limits their capacities and energy densities (<300 mAh⋅g −1 with energy density of <1,000 Wh⋅kg −1 ). Some new battery systems with conversion reaction cathodes, such as Li-S (2,600 Wh⋅kg −1 ) and Li-O 2 (3,450 Wh⋅kg −1 ) batteries ( 13 – 19 ), have been extensively investigated due to their high theoretical energy densities. However, they suffer from serious dissolution, interfacial stability, and/or side reaction issues, and the practical energy densities are much lower than their theoretical values.…”

mentioning

confidence: 99%

A nitroaromatic cathode with an ultrahigh energy density based on six-electron reaction per nitro group for lithium batteries

Chen

Sun

et al. 2022

Proc. Natl. Acad. Sci. U.S.A.

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Organic electrode materials have emerged as promising alternatives to conventional inorganic materials because of their structural diversity and environmental friendliness feature. However, their low energy densities, limited by the single-electron reaction per active group, have plagued the practical applications. Here, we report a nitroaromatic cathode that performs a six-electron reaction per nitro group, drastically improving the specific capacity and energy density compared with the organic electrodes based on single-electron reactions. Based on such a reaction mechanism, the organic cathode of 1,5-dinitronaphthalene demonstrates an ultrahigh specific capacity of 1,338 mAh⋅g−1 and energy density of 3,273 Wh⋅kg−1, which surpass all existing organic cathodes. The reaction path was verified as a conversion from nitro to amino groups. Our findings open up a pathway, in terms of battery chemistry, for ultrahigh-energy-density Li-organic batteries.

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mentioning

confidence: 99%

A nitroaromatic cathode with an ultrahigh energy density based on six-electron reaction per nitro group for lithium batteries

Chen

Sun

et al. 2022

Proc. Natl. Acad. Sci. U.S.A.

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“…The prepared GPE was then infiltrated into the porous cathode through ultraviolet radiation, resulting in the formation of an integrated cathode of a Co 3 O 4 nanoscale sheet array and gel polymer electrolyte. In the new integration architecture, the carbon cloth and small particles of Co 3 O 4 were conducive to electron transport and Co 3 O 4 was also a promising catalyst for the OER process [50,51] . The use of nanoarrays not only increased the surface area, but also provided a location for the deposition of discharge products.…”

Section: Mixing Of Cathode and Electrolytementioning

confidence: 99%

Critical advances in re-engineering the cathode-electrolyte interface in alkali metal-oxygen batteries

Peng¹,

Wang²,

Liu³

et al. 2022

Energy Mater

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Due to its porous structure and special reaction characteristics, the cathode-electrolyte interface in alkali metal-oxygen batteries (AMOBs) has a substantial impact on their electrochemical performance. However, in traditional sandwich-like battery structures, the reaction position in the cathode is restricted to the finite planar cathode-electrolyte interface, leading to AMOBs with limited performance. As a result, a growing number of research studies have sought to re-engineer the cathode-electrolyte interface to enhance the performance of AMOBs. This review summarizes the latest methods published in recent years in this field and compares a variety of different techniques. Regardless of the method used, the ultimate goal is to expand the cathode-electrolyte interface to create more triple reaction activity sites for ions, oxygen and electrons. The most important performance improvement of AMOBs is reflected by the increased specific capacity. Additional challenges valuable for the further development of alkali metal-oxygen batteries are also discussed

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“…145 However, these batteries are plagued by problems such as low charge/discharge efficiency, unstable electrolyte of partial discharge products, and dendrite formation of unstable anodes. 146,147 Many studies have focused on overcoming these issues. For example, Feng and co-workers developed a foldable Li-air battery (LAB) using two approach strategies (Fig.…”

Section: Air Batteriesmentioning

confidence: 99%