Porous carbon derived from Sunflower as a host matrix for ultra-stable lithium–selenium battery

Jia, Min; Niu, Yubin; Mao, Chunxu; Liu, Sangui; Zhang, Yan; Bao, Shu‐Juan; Xu, Maowen

doi:10.1016/j.jcis.2016.12.012

Cited by 22 publications

(9 citation statements)

References 25 publications

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“…Rechargeable lithium–selenium (Li–Se) batteries have recently attracted considerable attention as potential energy storage devices for portable electronics and electric vehicles because Se has a high volumetric capacity (3253 mAh cm −3 ), which is comparable to that of sulfur (3467 mAh cm −3 ) [ 1 – 5 ], and has a relatively high electronic conductivity among nonmetallic materials (1 × 10 −3 S m −1 ) [ 2 , 6 ]. Despite these advantages of Li–Se batteries, great challenges regarding the cathode impede their practical applications.…”

Section: Introductionmentioning

confidence: 99%

Highly Reversible Li–Se Batteries with Ultra-Lightweight N,S-Codoped Graphene Blocking Layer

Xin

et al. 2018

Nano-Micro Lett.

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The desire for practical utilization of rechargeable lithium batteries with high energy density has motivated attempts to develop new electrode materials and battery systems. Here, without additional binders we present a simple vacuum filtration method to synthesize nitrogen and sulfur codoped graphene (N,S-G) blocking layer, which is ultra-lightweight, conductive, and free standing. When the N,S-G membrane was inserted between the catholyte and separator, the lithium–selenium (Li–Se) batteries exhibited a high reversible discharge capacity of 330.7 mAh g−1 at 1 C (1 C = 675 mA g−1) after 500 cycles and high rate performance (over 310 mAh g−1 at 4 C) even at an active material loading as high as ~ 5 mg cm−2. This excellent performance can be ascribed to homogenous dispersion of the liquid active material in the electrode, good Li+-ion conductivity, fast electronic transport in the conductive graphene framework, and strong chemical confinement of polyselenides by nitrogen and sulfur atoms. More importantly, it is a promising strategy for enhancing the energy density of Li–Se batteries by using the catholyte with a lightweight heteroatom doping carbon matrix. Electronic supplementary materialThe online version of this article (10.1007/s40820-018-0213-5) contains supplementary material, which is available to authorized users.

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Section: Introductionmentioning

confidence: 99%

Highly Reversible Li–Se Batteries with Ultra-Lightweight N,S-Codoped Graphene Blocking Layer

Xin

et al. 2018

Nano-Micro Lett.

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“…Similarly, all kinds of biowaste have been carbonized and used as host materials in the cathodes of lithium–sulfur, lithium–selenium, or lithium–oxygen batteries. Within recent years, for example, carbons made from waste materials such as fruit stones or peels, algae, nutshells, soybean hulls, grain waste, other plant waste, saw dust, and lignin have been described in this regard.…”

Section: Electrodesmentioning

confidence: 99%

“…Because of the latter, carbon as a conductive support is not mandatory, however, it helps to prevent dissolution and volume expansion issues . Impregnation of biomass‐based carbons with selenium proceeds in a similar manner to impregnation with sulfur, that is, usually by mixing both components and heating them above the melting point of selenium . Specific capacities are lower than in lithium–sulfur batteries (typically 500–700 mAh g selenium −1 , decaying by 20–50 % within the first 100 cycles), owing to the lower theoretical capacity.…”

Section: Electrodesmentioning

confidence: 99%

Sustainable Battery Materials from Biomass

Liedel

2020

ChemSusChem

131

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Sustainable sources of energy have been identified as a possible way out of today's oil dependency and are being rapidly developed. In contrast, storage of energy to a large extent still relies on heavy metals in batteries. Especially when built from biomass‐derived organics, organic batteries are promising alternatives and pave the way towards truly sustainable energy storage. First described in 2008, research on biomass‐derived electrodes has been taken up by a multitude of researchers worldwide. Nowadays, in principle, electrodes in batteries could be composed of all kinds of carbonized and noncarbonized biomass: On one hand, all kinds of (waste) biomass may be carbonized and used in anodes of lithium‐ or sodium‐ion batteries, cathodes in metal–sulfur or metal–oxygen batteries, or as conductive additives. On the other hand, a plethora of biomolecules, such as quinones, flavins, or carboxylates, contain redox‐active groups that can be used as redox‐active components in electrodes with very little chemical modification. Biomass‐based binders can replace toxic halogenated commercial binders to enable a truly sustainable future of energy storage devices. Besides the electrodes, electrolytes and separators may also be synthesized from biomass. In this Review, recent research progress in this rapidly emerging field is summarized with a focus on potentially fully biowaste‐derived batteries.

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“…Selenium possesses a higher electrical conductivity (≈10 −3 S m −1 ), meaning it has a better utilization ratio of active material than sulfur . Lithium–selenium batteries have received much attention, and the low efficiency of selenium's electrical conductivity has not seemed to slow scientific researchers’ steps in exploiting it as an optimal cathode material …”

Section: Introductionmentioning

confidence: 99%

“…[22] Lithium-selenium batteries have received much attention,a nd the low efficiency of selenium's electricalc onductivityh as not seemedt os low scientific researchers' steps in exploitingi ta sa no ptimal cathode material. [23][24][25] Additionally,t ellurium, the last non-radioactive element of the chalcogen family,s hows great potential as an ew cathode material. Located at the bottom of the periodic table, Te tends to be am ore metallict han non-metallice lement.…”

Section: Introductionmentioning

confidence: 99%

Nitrogen‐Doped Carbon as a Host for Tellurium for High‐Rate Li–Te and Na–Te Batteries

Zhang

et al. 2019

ChemSusChem

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A nitrogen‐doped hierarchical porous carbon sponge, used as a matrix for tellurium accommodation, was designed and prepared in this work. The porosity of the matrix played an important role in enhancing the electrochemical performance of Li/Na–Te batteries. Specifically, the mesopores could accommodate active materials whereas the macropores provided sufficient space for partial Te accommodation and volume expansion in discharge. In addition, N heteroatoms in carbon species could enhance the electrical conductivity and widen its application in lithium/sodium storage. The monolithic and flaky architecture of the nitrogen‐doped hierarchical porous carbon sponge/tellurium composite offered a highly conductive network for fast electron transportation. As a result, the nitrogen‐doped hierarchical porous carbon sponge/tellurium composite achieved a superior rate performance for Li–Te and Na–Te batteries.

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Porous carbon derived from Sunflower as a host matrix for ultra-stable lithium–selenium battery

Cited by 22 publications

References 25 publications

Highly Reversible Li–Se Batteries with Ultra-Lightweight N,S-Codoped Graphene Blocking Layer

Highly Reversible Li–Se Batteries with Ultra-Lightweight N,S-Codoped Graphene Blocking Layer

Sustainable Battery Materials from Biomass

Nitrogen‐Doped Carbon as a Host for Tellurium for High‐Rate Li–Te and Na–Te Batteries

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