In-situ electropolymerized bipolar organic cathode for stable and high-rate lithium-ion batteries

Wang, Wei; Zhao, Chen; Yang, Jixing; Su, Hai; Xu, Yunhua

doi:10.1007/s40843-021-1689-4

Cited by 28 publications

(14 citation statements)

References 44 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The rising demand for distributed and portable energy storage systems has been fueling the growth of rechargeable batteries [1][2][3][4][5]. Metal batteries, powered by metal stripping and plating, have been passionately focused upon, as they are capable of offering specific energy much higher than their rechargeable ion counterparts [6][7][8][9][10][11][12].…”

Section: Introductionmentioning

confidence: 99%

Rooting Zn into metallic Na bulk for energetic metal anode

Cheng

Wang

et al. 2022

Sci. China Mater.

View full text Add to dashboard Cite

Metallic Na with high theoretical capacity and low redox potential is an attractive anode material for highenergy rechargeable metal batteries. The poor wettability of Na on current collectors and the weak interaction between Na atoms lead to uneven plating/stripping of Na and dendrite formation. Here, we report an encouraging strategy to tackle these issues by rooting Zn into metallic Na bulk through a molten infusion process. The introduction of Zn not only tunes molten Na into highly sodiophilic Na(Zn) but also guides the uniform nucleation of Na through a much stronger interaction. As a result, smooth Na plating and stripping with a low energy barrier and homogeneous current distribution are simultaneously accomplished. Stable galvanostatic cycling over 3000 h in symmetric Na(Zn) cells and low voltage hysteresis below 15 mV at a rate of 5 mA cm −2 have been recorded. When coupled with a Na 3 V 2 (PO 4 ) 2 O 2 F cathode, the Na(Zn)-Na 3 V 2 (PO 4 ) 2 O 2 F full cell demonstrates an energetic performance, highlighting the strategy of rooting Zn into alkali metal bulk for rechargeable metal batteries.

show abstract

Section: Introductionmentioning

confidence: 99%

Rooting Zn into metallic Na bulk for energetic metal anode

Cheng

Wang

et al. 2022

Sci. China Mater.

View full text Add to dashboard Cite

show abstract

“…The oxygen and nitrogen atoms in organic materials are often serve as redox active centers in organic batteries. However, according to previous works, 41,50 the discharge voltage platform of the carbonyls in the benzene-based imide units was below 2.5 V and the nitrogen atoms in the imide rings were not activated even at high voltages up to 4.4 V. Thus, as shown in Fig. 3a, the nitrogen atoms from the TPPDA units were speculated as active sites in the TPPDA-PICOF.…”

Section: Resultsmentioning

confidence: 75%

A star-shaped polyimide covalent organic framework for high-voltage lithium-ion batteries

Hao

Chen

et al. 2022

Mater. Chem. Front.

View full text Add to dashboard Cite

show abstract

“…[15,18,27,39,16] New peaks COLi and LiO centered at 1387 and 1060 cm −1 appeared, respectively, which is mainly attributed to the lithiation of CO and the formation of SEI films. [40][41][42] It is demonstrated that the insertion of Li + into CO results in the formation of COLi bond. [43] In addition, a small peak of sp 2 -hybridized carbon (1500-1400 cm −1 ) appeared in such initial discharging process.…”

Section: Ex Situ Spectroscopic Characterizations Of Redox Reactions O...mentioning

confidence: 99%

Eight‐Electron Redox Cyclohexanehexone Anode for High‐Rate High‐Capacity Lithium Storage

Lin

Zhang

et al. 2022

Advanced Energy Materials

View full text Add to dashboard Cite

delivery capacity. [1,2] As an essential component of LIBs, anode materials have continuously been one of the hotspots in battery research to boost the energy density and lifespan. To date, inorganic electrode materials have been dominant in battery anodes. [3] However, inorganic anode materials, especially commercial graphite anodes, suffer from limited theoretical capacity (372 mAh g −1 ) and low rate capability due to conventional Li + intercalation/de-intercalation mechanisms, which inevitably restricts the development of high-energy and high-power density LIBs. [4] As an alternative, high-capacity alloying-type anode materials (e.g., Si, Ge, and Sn), especially silicon-carbon composite and silicon monoxide (SiO), have gained extensive attention and achieved initial applications in recent years. [5] However, these novel anode materials still face great challenges in terms of cycling durability and rate performance, mainly caused by drastic volume variation, severe mechanical pulverization, and cumulative growth of solid electrolyte interphase (SEI) layer upon cycling. [6,7] It should be noted that, in addition to the performance bottleneck, the high carbon emission caused by the high-energy synthesis route is also a serious issue that deserves more attention for inorganic anodes.Replacing inorganic anodes with organic electrode materials is an extremely attractive direction for future LIBs. Organic compounds offer significant merits, including structural diversity, processing compatibility, easy recycling/disposal, and low environmental footprint. [8,9] More importantly, organic anode materials endowed abundant redox-active sites may achieve high capacity, and even make it possible to explore the intriguing energy storage mechanisms towards electrochemical process (e.g., superlithiation). [10,11] Among all organic electroactive anode materials, carbonyl (CO) group-based compounds are being explored as the main candidates for LIBs owing to their high theoretical capacity, accessible active sites, easy synthesis, and availability from natural resources. [12][13][14] In particular, cyclohexanehexone (C 6 O 6 ), as a perfect structure composed entirely of six CO groups, can theoretically contribute the largest number of reactive sites and the highest specific capacity when used as an anode material. However, the research of C 6 O 6 as the anode material for LIBs has not been Replacing inorganic anodes with organic electrode materials is an attractive direction for future green Li-ion batteries (LIBs). Carbonyl compounds are being explored as leading anode candidates for organic LIBs. In particular, cyclohexanehexanone (C 6 O 6 ), as a perfect structure composed entirely of six CO groups, can theoretically contribute to the most reactive sites and the highest specific capacity, but has not been used as an anode material so far owing to its high solubility in carbonate-based electrolytes and extremely low electronic conductivity. Herein, C 6 O 6 is first revealed as an ultra-high capacity and high-rate anode ...

show abstract

In-situ electropolymerized bipolar organic cathode for stable and high-rate lithium-ion batteries

Cited by 28 publications

References 44 publications

Rooting Zn into metallic Na bulk for energetic metal anode

Rooting Zn into metallic Na bulk for energetic metal anode

A star-shaped polyimide covalent organic framework for high-voltage lithium-ion batteries

Eight‐Electron Redox Cyclohexanehexone Anode for High‐Rate High‐Capacity Lithium Storage

Contact Info

Product

Resources

About