Carbothermal Synthesis of Sn-Based Composites as Negative Electrode for Lithium-Ion Batteries

Mouyane, Mohamed; Ruiz, José Marie; Jumas, Jean‐Claude; Olivier‐Fourcade, J.; Artus, Mathieu; Cassaignon, Sophie; Jolivet, Jean‐Pierre; Caillon, Georges; Jordy, Christian; Driesen, Kris; Scoyer, Jean

doi:10.1149/ma2010-03/1/51

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“…Three intense peaks centered at 1334, 1565, and 2664 cm −1 in the Raman spectrum are observed (Figure 1b), corresponding to the disorder-induced D-band (A 1g carbon vibration modes), the graphite G-band (E 2g carbon vibration modes), and the single Lorentzian profile 2D-band of carbon, respectively. 33,34 The G-band is typical for graphite and carbon black, originated from the stretching vibration of any C pairs of sp 2 site. A strong D-peak, normally aroused by the presence of in-plane substitutional heteroatoms, vacancies, grain boundaries, or other defects, indicates a large amount of disordered carbon existing in the CNT.…”

Section: Resultsmentioning

confidence: 99%

Inverse Capacity Growth and Pocket Effect in SnS₂ Semifilled Carbon Nanotube Anode

Jin

Huang

et al. 2018

ACS Nano

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SnS with high theoretical capacity has been impeded from practical applications as the anode of lithium-ion (Li-ion) batteries due to its large volume expansion and fast capacity decay. A nanostructure of the SnS semifilled carbon nanotube (SnS@CNT) has been realized by plasma-assisted fabrication of Sn semifilled CNT (Sn@CNT) followed by post-sulfurization. When serving as the anode of a Li-ion battery, SnS@CNT delivers an initial discharge capacity of 1258 mAh g at 0.3 A g. Instead of capacity fading, SnS@CNT shows inverse capacity growth to 2733 mAh g after 470 cycles. The high-resolution transmission electron microscopy images show that the void in CNTs, after cycling, is fully filled with pulverized SnS grains which have a shortened Li-ion diffusion path and enhanced surface area for interfacial redox reactions. In addition, the CNTs, like a pocket, confine the pulverized SnS, maintain the electric contact and structural integrity, and thus allow the electrodes to work safely under long cyclic loadings and extreme temperature conditions.

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Section: Resultsmentioning

confidence: 99%

Inverse Capacity Growth and Pocket Effect in SnS₂ Semifilled Carbon Nanotube Anode

Jin

Huang

et al. 2018

ACS Nano

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Carbothermal Synthesis of Sn-Based Composites as Negative Electrode for Lithium-Ion Batteries

Abstract: not Available.

Cited by 1 publication

References 3 publications

Inverse Capacity Growth and Pocket Effect in SnS₂ Semifilled Carbon Nanotube Anode

Inverse Capacity Growth and Pocket Effect in SnS₂ Semifilled Carbon Nanotube Anode

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Carbothermal Synthesis of Sn-Based Composites as Negative Electrode for Lithium-Ion Batteries

Abstract: not Available.

Cited by 1 publication

References 3 publications

Inverse Capacity Growth and Pocket Effect in SnS2 Semifilled Carbon Nanotube Anode

Inverse Capacity Growth and Pocket Effect in SnS2 Semifilled Carbon Nanotube Anode

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Inverse Capacity Growth and Pocket Effect in SnS₂ Semifilled Carbon Nanotube Anode

Inverse Capacity Growth and Pocket Effect in SnS₂ Semifilled Carbon Nanotube Anode