Effects of activated carbon treatment on Li4Ti5O12 anode material synthesis for lithium-ion batteries

Subhan, Achmad; Oemry, Ferensa; Khusna, Siti Nailul; Hastuti, Hastuti

doi:10.1007/s11581-018-2633-0

Cited by 14 publications

(9 citation statements)

References 45 publications

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“…Other peaks that emerge in the graphs at 2.07 V belong to the TiO2 phase [27]. In addition, the peaks that exist from 0.6 to 0.8 V indicate the working potential of Sn [28] Current Still, we can see that LTO@1%AC/15%Sn (Figure 6a) and LTO@3%AC/15%Sn Figure 6b) have sharper and higher peaks compared to those in LTO@5%AC/15% (Figure 6c), indicating that LTO@1%AC/15%Sn and LTO@3%AC/15%Sn have better fast charging/discharging characteristics due to the faster lithium-ion diffusion rate than those of LTO@5%AC/15% [11]. However, LTO@3%AC/15%Sn still has better reversibility than LTO@1%AC/15%Sn because it has more superimposed curves or more stable cycling.…”

Section: Electrochemical Performance Of Lto@ac/sn Compositesmentioning

confidence: 92%

“…It was because some of the metastable phases underwent thermal decomposition into rutile-TiO2, anatase-TiO2, LTO, or other forms at high calcining temperatures [5], [22]. According to the previous work, the mixture of AC in an appropriate content with TiO2 and LiOH could effectively suppress the formation of the rutile-TiO2 phase at high temperatures [11]. Therefore, we can see from the figure that the peaks of the rutile-TiO2 are shorter in LTO@3%AC/15%Sn and LTO@5%AC/15% compared to those in LTO@1%AC/15%Sn.…”

Section: Physical Characteristics Of Lto@ac/sn Compositesmentioning

confidence: 99%

“…This is because of the cumulative effect of the carbon from the AC and the additive conductive forming highly interconnected carbon networks in the LTO/Sn composite matrix, making the phase incline to agglomerate into particles in the micro-meter range [24]. Excessive AC content might also have hampered interfacial reaction at LiOH/anatase-TiO2 interface, leading to the sluggish formation of metastable Li2TiO3 layer and increased formation rate of anatase-to-rutile TiO2 [11]. To conclude, LTO@3%AC/15%Sn has the best grain morphology and distribution in this work.…”

Section: Physical Characteristics Of Lto@ac/sn Compositesmentioning

confidence: 99%

“…In this study, activated carbon (AC) was used on account of its remarkable electrochemical stability and improved specific surface area (SSA) so which is expected to increase the specific capacity larger than that of graphite [9], [10]. Besides, the AC also functions to control the LTO grain growth by homogenizing LTO powders that further enhance the lithium-ion diffusion into the TiO2 phase, hereafter speeding up the formation of the pristine LTO phase [11]. Still, AC also provides pores that act as paths to supply lithium-ions directly to the LTO phase, allowing rapid lithiumion transport [12].…”

Section: Introductionmentioning

confidence: 99%

“…To make the LTO@AC/Sn, the AC and LTO precursors (titanium tetra-butoxide (Ti(OBu)4) and LiOH powders) were mixed first through the sol-hydrothermal method to produce an LTO@AC mixture. The mixture of AC, TiO2, and LiOH had been expected to effectively suppress the formation of the rutile TiO2 phase [11]. Lastly, the resulting product was then mixed again with Sn powders through the mechanochemical process to produce the desirable LTO@AC/Sn.…”

Section: Introductionmentioning

confidence: 99%

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Activated Carbon-added Li4Ti5O12/Sn Composite Synthesized through Sol-Hydrothermal Method for Anode Active Material in Lithium-ion Battery

Ma'dika¹,

Nabila²,

Syahrial³

2022

Preprint

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Li4Ti5O12 (LTO) exhibits zero-strain behavior, exceptional cycle stability, low cost, and high safety. However, it is still low in electronic and ionic conductivity. Incorporating Sn into LTO materials can increase electronic conductivity and specific capacity. However, Sn still experiences volumetric expansion during the charging/discharging process. Adding activated carbon (AC) into the LTO/Sn composite can help improve the expansion resistance and electronic conductivity. In this work, the AC was first synthesized from charcoals through the carbon activation process and mixed with LTO precursors through the sol-hydrothermal method followed by mixing with Sn through the mechanochemical process to produce LTO@AC/Sn composites. The Sn content was fixed at 15 wt.%, while the AC contents were varied at 1 wt.%, 3 wt.%, and 5 wt.%. The AC specific surface area is increased by more than 100% compared to the non-activated one. The best effects of AC on grain morphology and distribution were found in the LTO/Sn contained 3 wt.% of AC, leading to transfer resistance, ohmic resistance, specific capacity, and coulombic efficiency were found to be 48.1 Ω, 8.5 Ω, 138 mAhg-1, and near 100%, respectively. The result suggests that the LTO@AC/Sn could be a favorable anode active material in lithium-ion batteries.

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Section: Electrochemical Performance Of Lto@ac/sn Compositesmentioning

confidence: 92%

Section: Physical Characteristics Of Lto@ac/sn Compositesmentioning

confidence: 99%

Section: Physical Characteristics Of Lto@ac/sn Compositesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Activated Carbon-added Li4Ti5O12/Sn Composite Synthesized through Sol-Hydrothermal Method for Anode Active Material in Lithium-ion Battery

Ma'dika¹,

Nabila²,

Syahrial³

2022

Preprint

View full text Add to dashboard Cite

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Constructing Flexible All‐Solid‐State Supercapacitors from 3D Nanosheets Active Bricks via 3D Manufacturing Technology: A Perspective Review

et al. 2022

Adv Funct Materials

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Due to the unique geometric characteristics and electronic structure of hierarchical 3D nanosheets, they show excellent electron migration rate, ultra‐high specific surface area, and reliable structural stability. Therefore, 3D nanosheets have great application prospects in the field of electrochemical energy storage. Supercapacitor has attracted extensive attention in recent years due to its merits of fast charge and discharge, long cycle life, safety, and stability. Flexibility, miniaturization, and intelligent integration are the development direction of supercapacitor energy storage devices. The emerging 3D printing technology, especially the ink direct writing mode, has greatly improved the design ability and control accuracy of device microstructures. Based on the research progress of 3D graphene nanosheets and 3D MXene nanosheets in the early stage of the authors’ or other teams, this paper proposes to use advanced 3D printing technology to realize the design of flexible all solid‐state supercapacitors by using 3D nanosheets active materials with high specific capacitance. The design methods of interdigital electrodes, multilayer skeleton electrodes and fiber electrodes by 3D printing technology and the performance evaluation of flexible supercapacitor are systematically analyzed. This perspective review aims to provide new conception and theoretical guidance for the design, preparation, and performance optimization of 3D nanosheets‐built materials by 3D printing for the practical application of flexible all‐solid‐state supercapacitor in the future.

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Biotechnological Applications in Spent Lithium-Ion Battery Processing

Abdollahi,

Saneie,

Rahmanian

et al. 2024

Advances in Science, Technology &Amp; Innovation

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Effects of activated carbon treatment on Li4Ti5O12 anode material synthesis for lithium-ion batteries

Cited by 14 publications

References 45 publications

Activated Carbon-added Li4Ti5O12/Sn Composite Synthesized through Sol-Hydrothermal Method for Anode Active Material in Lithium-ion Battery

Activated Carbon-added Li4Ti5O12/Sn Composite Synthesized through Sol-Hydrothermal Method for Anode Active Material in Lithium-ion Battery

Constructing Flexible All‐Solid‐State Supercapacitors from 3D Nanosheets Active Bricks via 3D Manufacturing Technology: A Perspective Review

Biotechnological Applications in Spent Lithium-Ion Battery Processing

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