Poly(phenanthrenequinone) as a conductive binder for nano-sized silicon negative electrodes

Kim, Sangmo; Kim, Myeong Hak; Choi, Sung Yeol; Lee, Jae-Gil; Jang, Jihyun; Lee, Jeong Beom; Ryu, Ji Heon; Hwang, Seung Sik; Park, Jin-Hwan; Shin, Kyusoon; Kim, Young Gyu; Oh, Seung M.

doi:10.1039/c5ee00472a

Cited by 76 publications

(50 citation statements)

References 28 publications

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“…This research provides an avenue for further research not merely for Si-based materials. Besides conductive binders, 60 some works also focus on binders which can transport Li +61 or embed nano-Si particles into a Li + -conductive polymer 62 , showing stable cycling with a great prospect for battery application. These conductive polymers could effectively enhance the cycle stability and restrain swelling of Si-based anodes.…”

Section: Conductive-type Bindermentioning

confidence: 99%

The progress of novel binder as a non-ignorable part to improve the performance of Si-based anodes for Li-ion batteries

Huang

Ren²,

Liu

et al. 2017

Int J Energy Res

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Summary In this review, we highlight recent achievements of polymer binders used for Si‐based anodes in Li‐ion batteries. We classify the polymer binders, depending on their polymer structures and the function on performances of Si‐based anodes, into 3 types: cellulose‐type, conductive‐type and self‐healing‐type binders. The relationship between polymer structures and enhanced electrochemical performances of Si‐based anodes is discussed in details. We investigate how the binders make an extraordinary improvement on the specific capacity, cycling stability and rate performances of Si‐based anodes. The reasons of the noticeable effect on Si‐based anodes especially the controlling of swelling during cycling are also researched. In a word, the main aim of this review is to analyze recent research achievements and propose perspectives of polymer binders used for Si‐based anodes in promising Li‐ion batteries.

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Section: Conductive-type Bindermentioning

confidence: 99%

The progress of novel binder as a non-ignorable part to improve the performance of Si-based anodes for Li-ion batteries

Huang

Ren²,

Liu

et al. 2017

Int J Energy Res

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“…Conducting polymers, such as conjugated polymers, have been the subject of recent interest due to the high conductivity and the designability of the electronic property, making them broad applications as conductive binders, surface functional materials and electrode materials in rechargeable batteries . Recent studies revealed that promising energy storage performance can be achieved for conducting polymers as LIB electrodes.…”

Section: Introductionmentioning

confidence: 99%

Toward High Performance Thiophene‐Containing Conjugated Microporous Polymer Anodes for Lithium‐Ion Batteries through Structure Design

Zhang

Pan

et al. 2017

Adv Funct Materials

167

146

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Poly(thiophene) as a kind of n-doped conjugated polymer with reversible redox behavior can be employed as anode material for lithium-ion batteries (LIBs). However, the low redox activity and poor rate performance for the poly(thiophene)-based anodes limit its further development. Herein, a structure-design strategy is reported for thiophene-containing conjugated microporous polymers (CMPs) with extraordinary electrochemical performance as anode materials in LIBs. The comparative study on the electrochemical performance of the structure-designed thiophene-containing CMPs reveals that high redox-active thiophene content, highly crosslinked porous structure, and improved surface area play significant roles for enhancing electrochemical performances of the resulting CMPs. The all-thiophenebased polymer of poly(3,3′-bithiophene) with crosslinked structure and a high surface area of 696 m 2 g −1 exhibits a discharge capacity of as high as 1215 mAh g −1 at 45 mA g −1 , excellent rate capability, and outstanding cycling stability with a capacity retention of 663 mAh g −1 at 500 mA g −1 after 1000 cycles. The structure-performance relationships revealed in this work offer a fundamental understanding in the rational design of CMPs anode materials for high performance LIBs.

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“…[6,7] However, the bulk silicon anodes experience over 300% volume change during the lithiation and delithiation processes, which leads to particle pulverization, loss of interparticle electrical contact, and instability of the solid electrolyte interphase (SEI), resulting in repeating chemical side reactions with the electrolyte and fast capacity fading. [8][9][10] To address these issues, a wide range of strategies have been developed to improve the electrochemical performances of Si-based anodes, including: (1) decreasing the size of Si-based materials to the nano-scale; [11,12] (2) coating protective materials as a buffer layer to mitigate the considerably large volume expansion; [13][14][15][16] (3) designing porous structure, hollow structure, core-shell structure Si materials. [17,18] Nanocrystallization and protective materials coating has been widely researched to show that they are able to address the issues of Si-based anodes.…”

Section: Introductionmentioning

confidence: 99%

A facile in situ synthesis of nanocrystal-FeSi-embedded Si/SiOx anode for long-cycle-life lithium ion batteries

Liang

Tian

et al. 2017

Energy Storage Materials

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A facile in situ synthesis of nanocrystal-FeSiembedded Si/SiO x anode for long-cycle-life lithium ion batteries, Energy Storage Materials, http://dx. AbstractA cost-effective, environmentally friendly and industrialized method of using low-grade sources to prepare high-performance anode material for lithium ion batteries (LIBs) with high energy density and long cycle life is both appealing and challenging. Herein, we present a low-cost, scalable and controllable approach for preparing unique sub-micrometer core-shell structure nanocrystal-FeSi-embedded Si/SiO x (FSO) anode material directly from a low-grade Fe-Si alloy. The sub-micrometer FSO anode materials are controlled by in-situ reaction of the Fe-Si-O in the Fe-Si alloy according to the phase diagram. The XRD and Rietveld refinement results indicate that when the treatment temperature increase, (i) FeSi phase appears together with Si and FeSi 2 , and then (ii)Fe 3 Si phase appears together with Si and FeSi. Most importantly, benefited from the formation of the amorphous SiO x as buffer layer and self-conductive nanocrystal-FeSi as a robust skeleton to mechanically support the large volume change of Si during cycling, the sub-micrometer core-shell structure FSO anode exhibits a high capacity (931.3 mAh g -1 ) at 50 mA g -1 and a prolonged cycle performance with 86% capacity retention over 1000 cycles at 1 A g -1 . The full cell with prelithiated FSO as the anode and commercial LiCoO 2 as the cathode delivers a high energy density of 467.5 Wh kg -1 at the 0.05 C. This work provides a promising route for commercial production of high-performance Si/SiO x -based anode materials in LIBs. Structure CharacterizationXRD measurements were performed with a Bruker D8 Advance powder diffractometer using CuKα sealed tube radiation (λ = 1.5418 Å) and Ni β-filter and equipped with LynxEye position sensitive detector. Rietveld refinement was conducted to determine the composition of the powders using Topas-5 software from Bruker. Thermogravimetric analysis (TGA) was carried out using a Perkin Elmer Diamond TG/DTA instrument at a heating rate of 10 o C min -1 under ambient conditions. X-ray photoelectron spectroscopy (XPS) measurements were carried out on an Axis Ultra DLD imaging photoelectron spectrometer. The samples were characterized by using scanning electron microscopy (FESEM and HR-SEM, Hitachi, S-4800) and transmission electron microscopy (TEM, FEI Ltd., Tecnai F20).

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Poly(phenanthrenequinone) as a conductive binder for nano-sized silicon negative electrodes

Abstract: The n-doped poly(phenanthrenequinone) is electrically conductive to be successfully used as the binder for nano-silicon negative electrodes.

Cited by 76 publications

References 28 publications

The progress of novel binder as a non-ignorable part to improve the performance of Si-based anodes for Li-ion batteries

The progress of novel binder as a non-ignorable part to improve the performance of Si-based anodes for Li-ion batteries

Toward High Performance Thiophene‐Containing Conjugated Microporous Polymer Anodes for Lithium‐Ion Batteries through Structure Design

A facile in situ synthesis of nanocrystal-FeSi-embedded Si/SiOx anode for long-cycle-life lithium ion batteries

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