Improved Graphite Anode for Lithium‐Ion Batteries Chemically: Bonded Solid Electrolyte Interface and Nanochannel Formation

Peled, E.; Menachem, C.; Bar‐Tow, D.; Melman, Artem

doi:10.1149/1.1836372

Cited by 439 publications

(215 citation statements)

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“…This is equivalent to about 14 mA/g or 72 µA/cm 2 . This method is used to build-up a smooth stable solid electrolyte interface (SEI) layer by the slow decomposition of the electrolyte solvents on the surface of graphite [9,16,17]. Fig.…”

Section: Formationmentioning

confidence: 99%

The dependence of natural graphite anode performance on electrode density

Shim

Striebel

2004

Journal of Power Sources

106

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The effect of electrode density for lithium intercalation and irreversible capacity loss on the natural graphite anode in lithium ion batteries was studied by electrochemical methods.Both the first-cycle reversible and irreversible capacities of the natural graphite anode decreased with an increase in the anode density though compression. The reduction in reversible capacity was attributed to a reduction in the chemical diffusion coefficient for lithium though partially agglomerated particles with a larger stress. For the natural graphite in this study the potentials for Li (de)insertion shifted between the first and second formation cycles and the extent of this shift was dependent on electrode density. The relation between this peak shift and the irreversible capacity loss are probably both due to the decrease in graphite surface area with compression.

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Section: Formationmentioning

confidence: 99%

The dependence of natural graphite anode performance on electrode density

Shim

Striebel

2004

Journal of Power Sources

106

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“…In most of the conventional Li-ion systems, graphitic anodes are used as an intercalation host for lithium to form LiC 6 , which corresponds to a charge capacity of 372 mAhg -1 . An extensive number of experimental approaches have been proposed to increase the anode's electrochemical capacity [1,2].…”

Section: Introductionmentioning

confidence: 99%

Microwave plasma chemical vapor deposition of nano-structured Sn/C composite thin-film anodes for Li-ion batteries

Marcinek

Hardwick

Richardson

et al. 2007

Journal of Power Sources

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In this paper we report results of a novel synthesis method of thin-film composite Sn/C anodes for lithium batteries. Thin layers of graphitic carbon decorated with uniformly distributed Sn nanoparticles were synthesized from a solid organic precursor Sn(IV) tert-butoxide by a one step microwave plasma chemical vapor deposition (MPCVD). The thin-film Sn/C electrodes were electrochemically tested in lithium half cells and produced a reversible capacity of 440 and 297 mAhg -1 at C/25 and 5C discharge rates, respectively. A long term cycling of the Sn/C nanocomposite anodes showed 40% capacity loss after 500 cycles at 1C rate.

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“…He published his paper just later on stating that "mild oxidation" is very important for the surface cleaning of the carbonaceous materials. 12 The "mild oxidation treatment (MOT)" at an appropriate temperature in the presence of favorable amount of oxygen, is an important method to clean up the surface of the carbonaceous samples by burning off the surface contaminant. In addition to his pointing out, not only the surface but also the internal contaminant causing to the initial capacity loss can be removed, which is shown below.…”

Section: Surface Modification By Heat-treatmentmentioning

confidence: 99%

Characterization of Carbonaceous Active Materials Used for the Negative Electrode of Li-Ion Batteries and Capacitors

Takamura

2012

Electrochemistry

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During the course of investigating carbonaceous materials for the active materials of Li-ion batteries (LIB) or supercapacitors (SPC) we have found interesting properties and behaviors of the carbon in contact with an electrolyte containing Li + . In this article the author would like to exhibit these attractive matters. Especially use of carbon fiber (CF) attracted our attention since we can use a single fiber as the working electrode, which enables us to measure not only the conductivity change but also the volume change during Li insertion/extraction. Determination of the lithium diffusion coefficient in carbon could be performed with ease. Surprisingly propylene carbonate showed no decomposition during cathodic polarization of graphite in propylene carbonate electrolyte when we use a single graphitzed fiber. On the other hand, by the use of rounded graphite particle we suggested presence of holes on the graphene layer. We proved that homogeneous distribution of conductivity over the surface of coated electrode is the key factor to keep long cycle life.

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Improved Graphite Anode for Lithium‐Ion Batteries Chemically: Bonded Solid Electrolyte Interface and Nanochannel Formation

Cited by 439 publications

References 1 publication

The dependence of natural graphite anode performance on electrode density

The dependence of natural graphite anode performance on electrode density

Microwave plasma chemical vapor deposition of nano-structured Sn/C composite thin-film anodes for Li-ion batteries

Characterization of Carbonaceous Active Materials Used for the Negative Electrode of Li-Ion Batteries and Capacitors

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