Spectroscopic analysis of lithium hydroxide and carbonate in solid state lithium oxide

Oohira, Shigeru; Kakihana, Masato; Fujii, Yasuhiko; Nagumo, Tadashi; Okamoto, Makoto

doi:10.1016/0022-3115(85)90134-5

Cited by 11 publications

(9 citation statements)

References 8 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The previously reported IR data of CoCO 3 (ref. [15][16][17][18] and Li 2 CO 3 (powder 25,26 or SEI components [26][27][28] ) agrees well with the above observations. Except for some broadening of the band at around 400 cm À1 (400-550 cm À1 ), the spectrum of pure CC-PPy shows the typical features of CoCO 3 , with much weaker absorption at 400 cm À1 than at 866 cm À1 , a clear band at 745 cm À1 and one broad band at 1416-1465 cm À1 without splitting (Fig.…”

Section: àsupporting

confidence: 82%

“…The absorption intensity at 400 cm À1 is much less than that at 866 cm À1 . 25 In contrast, the characteristic peak splitting at 420 and 498 cm À1 for Li-O vibration of Li 2 CO 3 (SDBS no. 12694) appears in the 400-700 cm À1 region.…”

Section: àmentioning

confidence: 98%

“…The theoretical capacity of CC and CC-PPy is thus 1448.7 (for 6. 25 Li storage) and 1451.2 mA h g À1 (for 7 Li storage). Here, eqn (1) and ( 2) are named as 'rst-order' reactions while eqn (4) are 'second-order' reactions.…”

Section: Analysis Of the Li-storage Mechanism Of CC And Cc-ppy Based ...mentioning

confidence: 99%

See 2 more Smart Citations

Enhanced rate performance and cycling stability of a CoCO3–polypyrrole composite for lithium ion battery anodes

et al. 2013

View full text Add to dashboard Cite

A CoCO 3 -polypyrrole composite (CC-PPy) for lithium ion battery anodes was prepared by first synthesizing urchin-like CoCO 3 microspheres (CC) via a hydrothermal route and further modifying them with a PPy coating. The resulting CC-PPy exhibits excellent cycling stability, outstanding rate performance and a great recovery capability compared to CC, delivering a reversible capacity of 1070.7, 811.2, 737.6, 518.7, 504.5 and 559 mA h g À1 after 100 cycles at 0.1, 1, 2, 3, 4 and 5 C, respectively, and a recovery capacity of up to 1787 mA h g À1 after 500 cycles from 1 to 5 C. A more comprehensive lithium storage mechanism of CoCO 3 has been proposed to support the experimental data, which includes two-step conversion reactions with a total theoretical value of 7 Li per CoCO 3 . The 'first-order' reaction involves reduction of CoCO 3 to metallic Co and the formation of Li 2 CO 3 , and the second reaction involves the further reduction of Li 2 CO 3 to Li x C 2 (x ¼ 0, 1, 2), along with the formation of Li 2 O. The lithiation and delithiation processes of CC and CC-PPy have been compared based on their potential profiles and CV curves, which show clear two-order character. The kinetic factors for the superior performance of CC-PPy are analyzed based on the Nyquist plots. Furthermore, the transition from CoCO 3 to Li 2 CO 3 to Li 2 O and its reversibility is confirmed by ex situ IR spectra recorded at the different discharge-charge states of CC-PPy.

show abstract

Section: àsupporting

confidence: 82%

Section: àmentioning

confidence: 98%

See 1 more Smart Citation

Enhanced rate performance and cycling stability of a CoCO3–polypyrrole composite for lithium ion battery anodes

et al. 2013

View full text Add to dashboard Cite

show abstract

“…The characteristic peaks in FT-IR PAS spectra were observed around 680, 780, 880, 1090, 1430, 1480, 1570, 3150 and 3450 cm À1 . The 880, 1090, 1430 and 1490 cm À1 peaks are believed to be attributed to Li 2 CO 3 which is one of the raw materials of Li 2 TiO 3 samples and is believed to exist as an impurity in the samples [9]. In comparison to the reported spectra of TiO 2 and Li 2 TiO 3 , 680 and 780 cm À1 peaks are identified as due to Ti-O, and 1570, 3150 and 3450 cm À1 peaks are from the O-H bond in hydroxyls adsorbed on or near the surface [10][11][12].…”

Section: Resultsmentioning

confidence: 98%

Effects of multi-ion irradiation on microstructural changes in lithium titanate

Yamaki

Okubo

Nakazawa

et al. 2009

Journal of Nuclear Materials

View full text Add to dashboard Cite

“…The characteristic peaks in FT-IR PAS spectra were observed around 680, 780, 880, 1090, 1430, 1480, 1570, 3150, 3450 cm À1 . The 880, 1090, 1430 and 1490 cm À1 peaks are believed to be due to Li 2 CO 3 which is one of the raw materials of Li 2 TiO 3 samples and is believed to exist as an impurity in the samples [8]. In comparison to the reported spectra of TiO 2 and Li 2 TiO 3 , 680 and 780 cm À1 peaks are identified as due to Ti-O, and 1570, 3150 and 3450 cm À1 peaks are from the O-H bond in hydroxyls adsorbed on or near the surface [9][10][11].…”

Section: Ft-ir Photoacoustic Spectroscopymentioning

confidence: 99%

Observation of the microstructural changes in lithium titanate by multi-ion irradiation

Yamaki

Nakazawa

Tanifuji

et al. 2004

Journal of Nuclear Materials

View full text Add to dashboard Cite

Spectroscopic analysis of lithium hydroxide and carbonate in solid state lithium oxide

Cited by 11 publications

References 8 publications

Enhanced rate performance and cycling stability of a CoCO3–polypyrrole composite for lithium ion battery anodes

Enhanced rate performance and cycling stability of a CoCO3–polypyrrole composite for lithium ion battery anodes

Effects of multi-ion irradiation on microstructural changes in lithium titanate

Observation of the microstructural changes in lithium titanate by multi-ion irradiation

Contact Info

Product

Resources

About