Possibility of voltage prediction from the Coulomb potential created by the atoms of a cathode active material for Li ion cells

Jun Ichi Yamaki; Minato Egashira; Shigeto Okada

doi:10.1016/S0378-7753(00)00456-0

Possibility of voltage prediction from the Coulomb potential created by the atoms of a cathode active material for Li ion cells

Jun Ichi Yamaki, Minato Egashira, Shigeto Okada

Department of Advanced Device Materials

Research output: Contribution to journal › Conference article › peer-review

Abstract

We studied the contribution of internal energy change to cathode voltage assuming that the cathode material was completely ionic and only the Coulomb potential was effective. From the internal energy change caused by one Li⁺ and one electron insertion, we derived a cathode voltage equation related to the Coulomb potential, which we calculated using a personal computer. We calculated the cathode voltage of an ideal structure Li_xMO₂ (R3±m) (Li-O: 2A, Ni-O: 2A), which is a model compound of Li_xNiO₂. From this calculation, we found that Li_xMO₂ has a two-phase co-existence for 0<x<0.25, and one phase for 0.25<x<1.

Original language	English
Pages (from-to)	109-115
Number of pages	7
Journal	Journal of Power Sources
Volume	90
Issue number	1
DOIs	https://doi.org/10.1016/S0378-7753(00)00456-0
Publication status	Published - Sept 2000
Event	The 1999 International Symposium on Rechargeable - Kyoto, Jpn Duration: Nov 14 1999 → Nov 16 1999

All Science Journal Classification (ASJC) codes

Renewable Energy, Sustainability and the Environment
Energy Engineering and Power Technology
Physical and Theoretical Chemistry
Electrical and Electronic Engineering

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This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1016/S0378-7753(00)00456-0

Cite this

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title = "Possibility of voltage prediction from the Coulomb potential created by the atoms of a cathode active material for Li ion cells",

abstract = "We studied the contribution of internal energy change to cathode voltage assuming that the cathode material was completely ionic and only the Coulomb potential was effective. From the internal energy change caused by one Li+ and one electron insertion, we derived a cathode voltage equation related to the Coulomb potential, which we calculated using a personal computer. We calculated the cathode voltage of an ideal structure LixMO2 (R3±m) (Li-O: 2A, Ni-O: 2A), which is a model compound of LixNiO2. From this calculation, we found that LixMO2 has a two-phase co-existence for 0",

author = "Yamaki, {Jun Ichi} and Minato Egashira and Shigeto Okada",

note = "Funding Information: This work was supported by NTT Telecommunications Energy Laboratories. ; The 1999 International Symposium on Rechargeable ; Conference date: 14-11-1999 Through 16-11-1999",

year = "2000",

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doi = "10.1016/S0378-7753(00)00456-0",

language = "English",

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journal = "Journal of Power Sources",

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T1 - Possibility of voltage prediction from the Coulomb potential created by the atoms of a cathode active material for Li ion cells

AU - Yamaki, Jun Ichi

AU - Egashira, Minato

AU - Okada, Shigeto

N1 - Funding Information: This work was supported by NTT Telecommunications Energy Laboratories.

PY - 2000/9

Y1 - 2000/9

N2 - We studied the contribution of internal energy change to cathode voltage assuming that the cathode material was completely ionic and only the Coulomb potential was effective. From the internal energy change caused by one Li+ and one electron insertion, we derived a cathode voltage equation related to the Coulomb potential, which we calculated using a personal computer. We calculated the cathode voltage of an ideal structure LixMO2 (R3±m) (Li-O: 2A, Ni-O: 2A), which is a model compound of LixNiO2. From this calculation, we found that LixMO2 has a two-phase co-existence for 0

AB - We studied the contribution of internal energy change to cathode voltage assuming that the cathode material was completely ionic and only the Coulomb potential was effective. From the internal energy change caused by one Li+ and one electron insertion, we derived a cathode voltage equation related to the Coulomb potential, which we calculated using a personal computer. We calculated the cathode voltage of an ideal structure LixMO2 (R3±m) (Li-O: 2A, Ni-O: 2A), which is a model compound of LixNiO2. From this calculation, we found that LixMO2 has a two-phase co-existence for 0

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DO - 10.1016/S0378-7753(00)00456-0

M3 - Conference article

AN - SCOPUS:0033690354

SN - 0378-7753

VL - 90

SP - 109

EP - 115

JO - Journal of Power Sources

JF - Journal of Power Sources

IS - 1

T2 - The 1999 International Symposium on Rechargeable

Y2 - 14 November 1999 through 16 November 1999

ER -

Possibility of voltage prediction from the Coulomb potential created by the atoms of a cathode active material for Li ion cells

Abstract

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