High loading cotton cellulose-based aerogel self-standing electrode for Li-S batteries

Mao, Heng; Liu, Limin; Shi, Lei; H, Wu; Lang, Jinxin; Wang, Ke; Zhu, Tianli; Gao, Yiyang; Sun, Zixiong; Zhao, Jing; Gao, Guoxin; Zhang, Dongyang; Yan, Wei; Ding, Shi‐Jin

doi:10.1016/j.scib.2020.01.021

Cited by 39 publications

(25 citation statements)

References 49 publications

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“…CCA (cellulose/graphene carbon composite aerogel) was prepared by the sol‐gel method described in our previous work [36] . A simple schematic illustration of preparation is shown in Figure S1and Figure S2.…”

Section: Resultsmentioning

confidence: 99%

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Current‐Density Regulating Lithium Metal Directional Deposition for Long Cycle‐Life Li Metal Batteries

Mao

Cai

et al. 2021

Angewandte Chemie

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Uncontrolled dendrite formation in the high energy density of lithium (Li) metal batteries (LMBs) may pose serious safety risks. While numerous studies have attempted to protect separators, these proposed methods fail to effectively inhibit upward dendrite growth that punctures through the separator. Here, we introduce a novel “orientated‐growth” strategy that transfers the main depositional interface to the anode/current collector interface from the anode/separator interface. We placed a layer of cellulose/graphene carbon composite aerogel (CCA) between the current collector and the anode (LCL‐bottom). This layer works as a charge organizer that induces a high current density and encourages Li to deposit at the anode/current collector interface. Both in situ and ex situ images of the electrode demonstrate that the anode part of the cell has been flipped; with the newly deposited particles facing the current collector and the smooth surface facing the separator. The electrode in half and full cells showed outstanding cyclic stability and rate capability, with the LCL‐bottom/LFP full cell capable of maintaining 94 % of its initial capacity after 1000 cycles.

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Section: Resultsmentioning

confidence: 99%

“…Based on previous work, [6–10, 32, 36–39] mechanism analysis diagrams of LCL‐without, LCL‐interlayer, and LCL‐melting electrodes are shown in Figure 1 a, b, and c, respectively. During the cycling of the Li metal electrode, the stripping/plating of Li ions occurs only at the anode/separator interface (Figure 1 a).…”

Section: Resultsmentioning

confidence: 99%

Current‐Density Regulating Lithium Metal Directional Deposition for Long Cycle‐Life Li Metal Batteries

Mao

Cai

et al. 2021

Angewandte Chemie

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“…Besides, the common filter paper derived carbon microfiber meshs, [44] the cotton based 3D carbon@graphene composite, [45] freestanding Cellulose(CMK‐3/S)carbon‐black electrode, [46] bamboo derived 3D cable‐like N‐doped graphene foam, [47] as well as the cellulose‐nanofiber based composite [48] were demonstrated to be excellent electrode materials for the Li−S batteries with improved electrochemical performances, which were mainly attributed to contributions provided by the natural cellulose substances.…”

Section: Natural Cellulose Substances Based Carbon Materials For Lithmentioning

confidence: 99%

Natural Cellulose Substance Based Energy Materials

Lin

Huang

2021

Chemistry An Asian Journal

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Natural cellulose substances have been proven to be ideal structural templates and scaffolds for the fabrication of artificial functional materials with designed structures, psychochemical properties and functionalities. They possess unique hierarchically porous network structures with flexible, biocompatible, and environmental characteristics, exhibiting great potentials in the preparation of energy‐related materials. This minireview summarizes natural cellulose‐based materials that are used in batteries, supercapacitors, photocatalytic hydrogen generation, photoelectrochemical cells, and solar cells. When natural cellulose substances are employed as the structural template or carbon sources of energy materials, the three‐dimensional porous interwoven structures are perfectly replicated, leading to the enhanced performances of the resultant materials. Benefiting from the mechanical strengths of natural cellulose substances, wearable, portable, free‐standing, and flexible materials for energy storage and conversion are easily obtained by using natural cellulose substances as the substrates.

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“…Ding and co‐workers explored a low‐cost raw material, cotton, which is extensively used in our daily life, for synthesizing a cellulose carbon aerogel (CA). [ 112 ] In this work, the cotton was treated via a NaOH solution to form a cellulose solution. After mixing with GO, the cellulose‐based graphene hydrogel was freeze dried and carbonized to obtain the self‐standing 3D carbon composite aerogel (CCA).…”

Section: Carbonaceous Materials For Li–s Batteriesmentioning

confidence: 99%

“…[ 109 ] Ding and coworkers’ 3D CCA electrode could be extremely folded over 500 times, and it remained intact and no carbon debris fell off (Figure 8d). [ 112 ] These works demonstrated a certain degree of durability and flexibility of the corresponding flexible electrodes. However, because the flexible devices will experience tens of thousands of different deformations through their lifetime, such works are still insufficient for the investigation of the flexibility and durability.…”

Section: Flexibility Of Lithium–sulfur Batteriesmentioning

confidence: 99%

Carbonaceous and Polymer Materials for Li–S Batteries with an Emphasis on Flexible Devices

Chen

et al. 2021

Adv Energy and Sustain Res

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Flexible energy storage devices have received tremendous attention with the rapid development of wearable electronics. Commercial lithium‐ion batteries are gradually reaching their theoretical capacity, which is still unable to meet the requirements of flexible electronics for high energy density. Lithium–sulfur batteries with a high theoretical capacity of 1675 mA h g−1 are regarded as the most promising next‐generation high‐energy‐density power source. Herein, the various recent efforts in the development of lithium–sulfur batteries based on carbonaceous and polymer materials are summarized, with an emphasis on flexible systems. Flexible lithium–sulfur batteries based on carbonaceous materials such as carbon nanotubes, graphene, and carbonized polymer or biomass, polymers, and solid‐state electrolytes are reviewed. Finally, the challenges and further improvements of lithium–sulfur batteries are summarized and prospected.

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High loading cotton cellulose-based aerogel self-standing electrode for Li-S batteries

Cited by 39 publications

References 49 publications

Current‐Density Regulating Lithium Metal Directional Deposition for Long Cycle‐Life Li Metal Batteries

Current‐Density Regulating Lithium Metal Directional Deposition for Long Cycle‐Life Li Metal Batteries

Natural Cellulose Substance Based Energy Materials

Carbonaceous and Polymer Materials for Li–S Batteries with an Emphasis on Flexible Devices

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