Carbon anode materials from polysiloxanes for lithium ion batteries

Ning, Lili; Wu, Yuping; Wang, Lizhao; Fang, Shifeng; Holze, Rudolf

doi:10.1007/s10008-004-0616-8

Cited by 24 publications

(46 citation statements)

References 22 publications

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“…Unexpectedly, we found that LS900 has a smaller capacity (238 mAh g −1 ) than that of graphite (290 mAh g −1 ), which contradicts the common belief suggested by several reports that SiOC is a potential alternative to graphite for LIB applications. [5][6][7]10,[13][14][15][16][17][18][19]21,24 The comparison of SiOC and graphite in these reports is incomplete because the galvanostatic charge/discharge of SiOC and graphite were not compared in the same cutoff voltage range.…”

Section: −1mentioning

confidence: 99%

Pseudocapacitive Characteristics of Low-Carbon Silicon Oxycarbide for Lithium-Ion Capacitors

Halim

Liu

Ardhi

et al. 2017

ACS Appl. Mater. Interfaces

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Lithium-ion capacitors (LICs) and lithium-ion batteries (LIBs) are important energy storage devices. As a material with good mechanical, thermal, and chemical properties, low-carbon silicon oxycarbide (LC-SiOC), a kind of silicone oil-derived SiOC, is of interest as an anode material, and we have examined the electrochemical behavior of LC-SiOC in LIB and LIC devices. We found that the lithium storage mechanism in LC-SiOC, prepared by pyrolysis of phenyl-rich silicon oil, depends on an oxygen-driven rather than a carbon-driven mechanism within our experimental scope. An investigation of the electrochemical performance of LC-SiOC in half- and full-cell LIBs revealed that LC-SiOC might not be suitable for full-cell LIBs because it has a lower capacity (238 mAh g) than that of graphite (290 mAh g) in a cutoff voltage range of 0-1 V versus Li/Li, as well as a substantial irreversible capacity. Surprisingly, LC-SiOC acts as a pseudocapacitive material when it is tested in a half-cell configuration within a narrow cutoff voltage range of 0-1 V versus Li/Li. Further investigation of a "hybrid" supercapacitor, also known as an LIC, in which LC-SiOC is coupled with an activated carbon electrode, demonstrated that a power density of 156 000 W kg could be achieved while maintaining an energy density of 25 Wh kg. In addition, the resulting capacitor had an excellent cycle life, holding ∼90% of its energy density even after 75 000 cycles. Thus, LC-SiOC is a promising active material for LICs in applications such as heavy-duty electric vehicles.

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Section: −1mentioning

confidence: 99%

Pseudocapacitive Characteristics of Low-Carbon Silicon Oxycarbide for Lithium-Ion Capacitors

Halim

Liu

Ardhi

et al. 2017

ACS Appl. Mater. Interfaces

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“…Studies involving solid-state mixing of MWCNT in SiCN ceramic particles have also been encouraging; a 14 % improvement over SiCN was observed with a reversible capacity of ~750 (fi rst cycle) and 400 mAhg −1 (30th cycle) for these composites. 67 A recent study has shown that Si(B)CN-based anodes can outperform SiCN anodes in terms of useful capacity and longer cycle life. One such comparison is shown in Figure 10, where reversible capacity of polysilazane based SiCN has been shown to increase four times on doping with boron.…”

Section: Pdc Carbon Nanomaterials Compositesmentioning

confidence: 99%

Polymer-derived ceramics as anode material for rechargeable Li-ion batteries: a review

Bhandavat

Pei

Singh

2012

Nanomaterials and Energy

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Lithium ion batteries (LIB) is currently the most promising of all battery technologies for effi cient storage of electrical energy and powering of electric vehicles. However, the ongoing LIB research faces multiple issues pertaining to materials, cost and safety. One of the major factors that dictate the performance of LIB is its electrode's Li-storage (anode/ cathode) capacity, cycleability and effi ciency. In this article, the authors evaluate the recent experimental progress made in LIB anode materials prepared from polymer-derived ceramics (PDC). PDCs have several unique characteristics that differentiate them from other conventional carbon or silicon-based anodes. Most notably PDCs exhibit high chemical and thermodynamic stability under adverse operational conditions. Learnings from the analysis of experimental observations can be carried forward to design advanced PDCs, thereby improving overall performance of the battery, particularly for automotive applications.

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“…Silicon oxycarbide (SiOC) ceramics derived from polymers attract great interest because they may potentially replace silicon-based and carbonaceous anodes, because, in charge and discharge, they exhibit good capacity and stability. − SiOCs are commonly produced via pyrolysis using ceramic precursors derived from polymers (PDC), like a mixture of polyphenylmethylsilane pitch, polymethylphenylsiloxane, polyhydrodimethylsiloxane (PHMS)/graphene oxide, polysiloxane, tetra methyl-tetra vinyl cyclotetrasiloxane/dicumyl peroxide, and of PHMS/di vinylbenzene (DVB). , After pyrolysis, SiOC is an amorphous ceramic, where oxygen and carbon are simultaneously bonded to silicon, and a portion of free carbon is dispersed in the glassy phase . The active sites to store lithium ions are the nanovoids, the tetrahedral of SiOC, the C atoms in excess, and the defects at the edge of or within the segregated carbon network in SiOC ceramics.…”

Section: Introductionmentioning

confidence: 99%

Hard SiOC Microbeads as a High-Performance Lithium-Ion Battery Anode

Dong

Han

Wang

et al. 2020

ACS Appl. Energy Mater.

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Silicon oxycarbide (SiOC) ceramics are attractive materials for anodes of lithium-ion batteries, because of their excellent structural stability and high rate capability. Nonetheless, complex production procedures hinder their commercialization. This work proposes a simple emulsion templating method using liquid poreforming agent to prepare hard SiOC microbeads, which feature spherical morphology (∼35 μm in diameter) and large specific surface area (217 m 2 g −1 ). Moreover, the produced SiOC microbeads have a hard and dense surface, which significantly improves the structural stability during the process of lithiation/delithiation. A discharge specific capacity of 805 mAh g −1 was reached after 300 cycles, using a current density of 360 mA g −1 , and 420 mAh g −1 was recorded after 1000 cycles, even at an ultrahigh current density of 3600 mA g −1 . The porous interior structure and the disordered carbon structure of the SiOC microbeads are contributory factors due to the fast mobility of Li + in the SiOC matrix, related to the coefficient of Li + diffusion (4.5 × 10 −6 cm 2 s −1 ) and eventually the rate capability of the material. Consequently, anodes of lithium-ion batteries with high performance can be produced via this fast and simple preparation method.

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Carbon anode materials from polysiloxanes for lithium ion batteries

Cited by 24 publications

References 22 publications

Pseudocapacitive Characteristics of Low-Carbon Silicon Oxycarbide for Lithium-Ion Capacitors

Pseudocapacitive Characteristics of Low-Carbon Silicon Oxycarbide for Lithium-Ion Capacitors

Polymer-derived ceramics as anode material for rechargeable Li-ion batteries: a review

Hard SiOC Microbeads as a High-Performance Lithium-Ion Battery Anode

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