Spray Drying Method for Large-Scale and High-Performance Silicon Negative Electrodes in Li-Ion Batteries

Jung, Dae Soo; Hwang, Tae Hoon; Park, Seung Bin; Choi, Jang Wook

doi:10.1021/nl400437f

Cited by 239 publications

(163 citation statements)

References 41 publications

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“…After HCl treatment, the void space inside and among the CVS nanobeads can be formed, which can better accommodate the huge volume change of Si NPs during the cycling processes. [ 27 ] Figure S1 (Supporting Information) clearly shows that all the translucent CVS nanobeads were well coated by the thin and homogeneous outer carbon coatings and supported by a wellconnected 3D carbon network.…”

Section: Introductionmentioning

confidence: 99%

A Green and Facile Way to Prepare Granadilla‐Like Silicon‐Based Anode Materials for Li‐Ion Batteries

Zhang

Rajagopalan

Guo

et al. 2015

Adv Funct Materials

204

109

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A yolk-shell-structured carbon@void@silicon (CVS) anode material in which a void space is created between the inside silicon nanoparticle and the outer carbon shell is considered as a promising candidate for Li-ion cells. Untill now, all the previous yolk-shell composites were fabricated through a templating method, wherein the SiO2 layer acts as a sacrificial layer and creates a void by a selective etching method using toxic hydrofluoric acid. However, this method is complex and toxic. Here, a green and facile synthesis of granadillalike outer carbon coating encapsulated silicon/carbon microspheres which are composed of interconnected carbon framework supported CVS nanobeads is reported. The silicon granadillas are prepared via a modified templating method in which calcium carbonate was selected as a sacrificial layer and acetylene as a carbon precursor. Therefore, the void space inside and among these CVS nanobeads can be formed by removing CaCO3 with diluted hydrochloric acid. As prepared, silicon granadillas having 30% silicon content deliver a reversible capacity of around 1100 mAh g−1 at a current density of 250 mA g−1 after 200 cycles. Besides, this composite exhibits an excellent rate performance of about 830 and 700 mAh g−1 at the current densities of 1000 and 2000 mA g−1, respectively. (≈4200 mAh g −1 ), relatively low discharge potential (≈0.5V vs Li/Li + ), abundance, and environmental benignity. [1][2][3][4][5][6] However, the dramatic volume change (>300%) during lithiation and delithiation processes leads to severe pulverization and continual formation of solid electrolyte interphase (SEI) on the newly formed silicon surfaces, resulting in a large capacity loss. [7][8][9][10][11] Therefore, the cycling performance of silicon-based anodes is still far from satisfactory from a commercial point of view. [ 12 ] Silicon nanoparticles (Si NPs) have been found to tolerate extreme changes in volume with cycling. [ 13 ] Hence, great efforts have been made to improve the cycling stability and electrical conductivity by using various Si-based nanostructures, including Si nanowires, [ 3,14,15 ] porous Si, [16][17][18][19] and conductive agent coated Si such as carbon, [ 18,20,21 ] Ag, [ 22,23 ] and conducting polymer. [ 24 ] Among them, a yolkshell-structured carbon@void@silicon (CVS) composite [ 25,26 ] is quite promising for practical applications, because the void space between the outer carbon shell and the inside Si NP allows the room for volume changes of Si NP without deforming the carbon shell and SEI fi lm, which in turn allows for the growth of a stable SEI on the surface of the outer carbon shell. [ 26 ] Besides, the homogeneous carbon coating shell can prevent the electrolyte ingress and the direct contact of Si NPs with the electrolyte, so the SEI will only be formed on the outer surface of the carbon shell, leading to the high Coulombic effi ciency and improved cycling stability. [ 25 ] For instance, Cui and co-workers achieved a high capacity of ≈2800 mAh g −1 with a very good cycling s...

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Section: Introductionmentioning

confidence: 99%

A Green and Facile Way to Prepare Granadilla‐Like Silicon‐Based Anode Materials for Li‐Ion Batteries

Zhang

Rajagopalan

Guo

et al. 2015

Adv Funct Materials

204

109

View full text Add to dashboard Cite

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“…For example, Si is a particularly attractive anode material, owing to its high specific capacity of B4,200 mAh g À 1 , excellent material abundance and well-developed industrial infrastructure for manufacturing 16,18 . In the past several years, there has been exciting progress in addressing the issues associated with large volume change (4300%) during lithium insertion and extraction by designing nanostructured Si including nanowires and coreshell nanowires [19][20][21][22] , hollow particles and tubes [23][24][25] , porous materials 26,27 , Si/C nanocomposites [28][29][30] and by using novel binders [31][32][33][34] . One of the remaining issues for Si anodes is the large capacity loss in the first cycle.…”

mentioning

confidence: 99%

Dry-air-stable lithium silicide–lithium oxide core–shell nanoparticles as high-capacity prelithiation reagents

et al. 2014

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Rapid progress has been made in realizing battery electrode materials with high capacity and long-term cyclability in the past decade. However, low first-cycle Coulombic efficiency as a result of the formation of a solid electrolyte interphase and Li trapping at the anodes, remains unresolved. Here we report Li x Si-Li 2 O core-shell nanoparticles as an excellent prelithiation reagent with high specific capacity to compensate the first-cycle capacity loss. These nanoparticles are produced via a one-step thermal alloying process. Li x Si-Li 2 O core-shell nanoparticles are processible in a slurry and exhibit high capacity under dry-air conditions with the protection of a Li 2 O passivation shell, indicating that these nanoparticles are potentially compatible with industrial battery fabrication processes. Both Si and graphite anodes are successfully prelithiated with these nanoparticles to achieve high first-cycle Coulombic efficiencies of 94% to 4100%. The Li x Si-Li 2 O core-shell nanoparticles enable the practical implementation of high-performance electrode materials in lithium-ion batteries.

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“…Jung et al reported a silicon-porous carbon composite, which capacitated scalable production by means of industrially available spray drying process. [53] The composite electrode exhibited superior electrochemical performance of 1956 mAh g À1 at 0.1 A g À1 and still maintained 91% capacity retention after 150 cycles. Xu et al introduced a mesoporous Si/C sphere with well-designed void space.…”

Section: Si-carbon Compositesmentioning

confidence: 93%

“…The carbon matrix can (i) accommodate the volume variation of Si nanoparticles upon charge/discharge procedures; (ii) improve the electronic conductivity of the whole composite; (iii) allow efficient transport of Li ions and electrons among the electrode and electrolyte; and (iv) low cost and convenient manufacture. Multifarious carbon materials with different configuration have been employed to synthesis Si-carbon composite, such as carbon frameworks, [42,52] porous carbon substrates, [10,28,[53][54][55][56][57][58] carbon nanotubes. [59,60] Recently, Xu et al proposed a watermelon-inspired Si/carbon (Si/C) microspheres with ingenious hierarchical buffer structure through a combination of spray drying and CVD method.…”

Section: Si-carbon Compositesmentioning

confidence: 99%

“…[66][67][68][69][70] Scientists have developed several methods to produce Si/graphene composites for LIBs. In 2015, Feng et al proposed a facial way to fabricate of [46] Si NPs Ball milling -50 1354 (M-Si) 980 (F-Si) 41.5% (M-Si) 44.6% (F-Si) [45] Si NPs/C Spray drying 83.5 150 1366 (4 A g À1 ) 91% [53] Si NPs/C Hydrothermal 90.4 100 1607 (0.4 A g À1 ) 85% [56] Si NPs/C electrospinning 87.5 100 1305 (0.24 A g À1 ) %100% [59] Si NPs/C Mg reduction/CVD -500 1199 (0.5 A g À1 ) 86% [58] Si NPs /G/C Freeze drying/CVD 76.8 300 840 (1.4 A g À1 ) 76% [71] Si NPs /G Solvent evaporation/ reduction 47 50 1118 (0.05 A g À1 ) 66.3% [75] Si NPs/G Gel/coating/reduction 54 1300 668 (0.4 A g À1 ) 49.5% [69] Si NPs/G Freeze casting/ freezing drying/ reduction 78 1200 1170 (1 A g À1 ) 93% [92] Si NPs/PPy/CNT in situ polymerization 78.2 1000 1600 (3.3 A g À1 ) 86% [82] Si NPs/PANi in situ polymerization 70 1000 550 (6 A g À1 ) 91% [79] Si NPs/PEDOT: PSS in situ secondary doping 77.6 100…”

Section: Si-graphene Compositesmentioning

confidence: 99%

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Rationally Designed Silicon Nanostructures as Anode Material for Lithium‐Ion Batteries

et al. 2017

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Silicon (Si) is promising for high capacity anodes in lithium-ion batteries due to its high theoretical capacity, low working potential, and natural abundance. However, there are two main drawbacks that impede its further practical applications. One is the huge volume expansion generating during lithiation and delithiation progresses, which leads to severe structural pulverization and subsequently rapid capacity fading of the electrode. The other is the relatively low intrinsic electronic conductivity, therefore, seriously impacting the rate performance. In the past decades, numerous efforts have been devoted for improving the cycling stability and rate capability by rational designs of different nanostructures of Si materials and incorporations with some conductive agents. In this review, the authors summarize the exciting recent research works and focus on not only the synthesis techniques, but also the composition strategies of silicon nanostructures. The advantages and disadvantages of the nanostructures as well as the perspective of this research field are also discussed. We aim to give some reference for engineering application on Si anodes in lithium ion batteries.

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Spray Drying Method for Large-Scale and High-Performance Silicon Negative Electrodes in Li-Ion Batteries

Cited by 239 publications

References 41 publications

A Green and Facile Way to Prepare Granadilla‐Like Silicon‐Based Anode Materials for Li‐Ion Batteries

A Green and Facile Way to Prepare Granadilla‐Like Silicon‐Based Anode Materials for Li‐Ion Batteries

Dry-air-stable lithium silicide–lithium oxide core–shell nanoparticles as high-capacity prelithiation reagents

Rationally Designed Silicon Nanostructures as Anode Material for Lithium‐Ion Batteries

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