Reaction Mechanism of “SiO”-Carbon Composite-Negative Electrode for High-Capacity Lithium-Ion Batteries

Yamada, Masayuki; Inaba, Akira; Ueda, Atsushi; Matsumoto, Koukichi; Iwasaki, Takaya; Ohzuku, Tsutomu

doi:10.1149/2.018210jes

Cited by 59 publications

(61 citation statements)

References 22 publications

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“…The half cells were assembled in an argon-filled glove box and the electrochemical reaction was measured in the voltage range from 0.01 to 1.2 V vs. Li/Li + at a rate of 0.025 mA cm ¹2 at 60°C. Therefore, to try to extract Li electrochemically from Li 4 SiO 4 , which was thought to be a factor with irreversible capacity, 17) Li 4 SiO 4 electrode coated onto an Al foil was charged up to 4.0 V.…”

Section: Methodsmentioning

confidence: 99%

Investigation of the irreversible reaction mechanism and the reactive trigger on SiO anode material for lithium-ion battery

Yamamura

Nobuhara

Nakanishi

et al. 2011

J. Ceram. Soc. Japan

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To clarify the reaction mechanism of SiO anode, the chemical and the electrochemical reactions of SiO and SiO 2 with Li-metal and first principles calculations were investigated. In the chemical reactions, SiO and amorphous SiO 2 formed lithium silicide (Li 44 Si 5 ) and lithium silicate (Li 2 SiO 3 , Li 4 SiO 4 ) by reacting with Li. In the electrochemical reactions, crystalline SiO 2 did not react with Li though amorphous SiO 2 did do so. These results indicated that both Si area and amorphous SiO 2 area in SiO matrix play an important part in SiO chargedischarge process. This suggests that the dangling-bond in amorphous SiO 2 can react with Li easily. This finding was also confirmed by first principles calculations using VASP code.

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Section: Methodsmentioning

confidence: 99%

Investigation of the irreversible reaction mechanism and the reactive trigger on SiO anode material for lithium-ion battery

Yamamura

Nobuhara

Nakanishi

et al. 2011

J. Ceram. Soc. Japan

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“…SiO undergoes structural destruction upon the fi rst discharge process according to the following reaction [ 437,438 ] SiO + 5.75Li + 5.75e SiO undergoes structural destruction upon the fi rst discharge process according to the following reaction [ 437,438 ] SiO + 5.75Li + 5.75e…”

Section: Wileyonlinelibrarycommentioning

confidence: 99%

Research Progress on Negative Electrodes for Practical Li‐Ion Batteries: Beyond Carbonaceous Anodes

Aravindan

Lee

Srinivasan

2015

Advanced Energy Materials

433

319

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3 of 43) 1402225 wileyonlinelibrary.comhost matrix is observed and this process is called "topotactic reaction", which is either chemically or thermally reversible; a perfect example is Li-intercalation into a graphite matrix. Such intercalation chemistry has been successfully used in Li-ion batteries for both anode and cathode materials and has also been commercialized (i.e., LiCoO 2 /Li x C 6 and LiFePO 4 /Li x C 6 ). [ 4,5 ] The insertion type materials, i.e., metal oxides have several advantages over graphitic anodes when used in practical cells; these include a negligible amount of ICL, no Li-platting issues, no solvent co-intercalation, no electrolyte decomposition, no SEI required for the safe operation of the cell, it is capable of delivering high power density, and has an easy synthesis protocol. On the other hand, less reversible capacity and higher intercalation potential are the notable setbacks compared to graphite. Although numerous Li-intercalating materials are proposed as possible anodes for LIB applications, few of them have only been tested or commercialized in the "rocking-chair" confi guration, for instance Li 4 Ti 5 O 5 anode. Apart from the mentioned anode, few other insertion type materials have been also evaluated in the rocking-chair confi guration for LIBs. Accordingly, the next section describes the structural and electrochemical performance of various intercalation anodes evaluated in the rocking-chair confi guration. TiO 2The existence of several polymorphs is reported for the case of TiO 2 , but anatase, rutile, brookite, and bronze phases have only been reported for Li-storage. [ 26 ] Reversible insertion of one mole of Li is theoretically possible, independent of the polymorph, with a capacity of ≈335 mAh g −1 . However, variation in the Liinsertion potential and reaction mechanism has been observed for such polymorphs. Easy synthesis protocols, scalability, inexpensiveness, ease of tailoring the desired morphology, and eco-friendliness are other key features for utilizing TiO 2 polymorphs for the construction of Li-ion power packs. [27][28][29] AnataseThe anatase phase is one of the widely investigated polymorphs of TiO 2 for Li-storage. [ 27 ] Theoretically, one mole of Li is possible, but practically only ≈0.5 mole Li is reversible upon cycling. Several research attempts have been carried out to improve the reversible capacity, including utilizing high energy (0 0 1) facets because of their dominant higher surface energy (0.90 J m −2 ) compared to (1 0 0) facets (0.44 J m −2 ) and using thermodynamically more stable (1 0 1) facets (0.53 J m −2 ). [ 30,31 ] Although high Li-reversibility could be achieved for such (0 0 1) facets, capacity fading remains an issue upon cycling. [ 32 ] Li-diffusion co-effi cient ( D Li ) values for anatase phase are in the range of 1 × 10 −17 to 4 × 10 −17 cm 2 s −1 for Li-insertion and extraction processes, respectively. [ 27 ] In the crystal chemistry of the anatase phase, TiO 6 octahedra sharetwo adjacent edges with two other octahedral so that...

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“…Electrode.-Anode.-The carbon-coated SiO powder (C-SiO) was prepared by a CVD method 19,27,28 and used as anode materials. The C-SiO powder in this study consisted of crystalline Si and amorphous SiO 2 .…”

Section: Methodsmentioning

confidence: 99%

“…[8][9][10][11][12][13] Recently, half-cell fabricated from SiO, which is covered by the conductive carbon indicated the remarkable cycle performance. [14][15][16][17][18][19][20][21][22][23][24][25][26] Although cycle properties of LIBs using the SiO anode have been improved gradually, deterioration analysis during cycles at high temperature have been not performed sufficiently. Here, we investigated about the deterioration of cell at high temperature, i.e., 60 • C, when the upper voltage such as 4.0, 4.1 and 4.2 V was changed for the cycles.…”

mentioning

confidence: 99%

Deterioration Analysis in Cycling Test at High Temperature of 60°C for Li-Ion Cells Using SiO Anode

Kajita

Yuge

Nakahara

et al. 2014

J. Electrochem. Soc.

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We carried out a deterioration analysis in Li-ion cells using SiO anode at high temperature, i.e., 60 • C. The capacity retention at the upper cutoff voltage (UCV) of 4.0, 4.1, and 4.2 V after 400 cycles was about 80, 80, and 20%, respectively. The cell deterioration depended strongly on the upper cutoff voltage and proceeded drastically at 4.2 V. This was because the internal resistance of cell increased by the decomposition of the electrolytic solution during cycles. From depth profile of XPS on the anode, the thick layer containing Li and F has been formed only for UCV = 4.2 V, implying that the electrolyte of LiPF 6 is enough to break down carbonate electrolyte at 60 • C. Therefore, we found that the optimization of the threshold of UCV for high temperature need to attain the good cycle performance at high temperature in a Li-ion battery using a SiO anode.

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Reaction Mechanism of “SiO”-Carbon Composite-Negative Electrode for High-Capacity Lithium-Ion Batteries

Cited by 59 publications

References 22 publications

Investigation of the irreversible reaction mechanism and the reactive trigger on SiO anode material for lithium-ion battery

Investigation of the irreversible reaction mechanism and the reactive trigger on SiO anode material for lithium-ion battery

Research Progress on Negative Electrodes for Practical Li‐Ion Batteries: Beyond Carbonaceous Anodes

Deterioration Analysis in Cycling Test at High Temperature of 60°C for Li-Ion Cells Using SiO Anode

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