Preparation and characteristics of (NayAg1-y)2V4O11 for lithium secondary battery cathodes

Jin Kawakita; Koji Makino; Yasushi Katayama; Takashi Miura; Tomiya Kishi

doi:10.1016/S0378-7753(98)00118-9

Preparation and characteristics of (Na_yAg_1-y)₂V₄O₁₁ for lithium secondary battery cathodes

Jin Kawakita, Koji Makino, Yasushi Katayama, Takashi Miura, Tomiya Kishi

Department of Applied Chemistry

Research output: Contribution to journal › Article › peer-review

16 Citations (Scopus)

Abstract

Layered vanadium oxides, (Na_yAg_1-y)₂V₄O₁₁ (y = 0.77-0.98) are prepared by substituting part of the silver ions in Ag₂V₄O₁₁ with sodium ions using an ion-exchange reaction in molten nitrate salts. These oxides exhibit less capacity loss during repeated cycling than non-substituted oxide, Ag₂V₄O₁₁. This is mainly because the structural change into an amorphous state upon lithiation is restricted by the pillar effect in which unextractable sodium ions connect adjacent layers during lithium insertion/extraction.

Original language	English
Pages (from-to)	244-250
Number of pages	7
Journal	Journal of Power Sources
Volume	75
Issue number	2
DOIs	https://doi.org/10.1016/S0378-7753(98)00118-9
Publication status	Published - 1998 Oct 1

Keywords

Discharge capacity
Ion exchange
Lithium
Silver vanadate
Sodium

ASJC Scopus subject areas

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

UN SDGs

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

Access to Document

10.1016/S0378-7753(98)00118-9

Cite this

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abstract = "Layered vanadium oxides, (NayAg1-y)2V4O11 (y = 0.77-0.98) are prepared by substituting part of the silver ions in Ag2V4O11 with sodium ions using an ion-exchange reaction in molten nitrate salts. These oxides exhibit less capacity loss during repeated cycling than non-substituted oxide, Ag2V4O11. This is mainly because the structural change into an amorphous state upon lithiation is restricted by the pillar effect in which unextractable sodium ions connect adjacent layers during lithium insertion/extraction.",

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AU - Kawakita, Jin

AU - Makino, Koji

AU - Katayama, Yasushi

AU - Miura, Takashi

AU - Kishi, Tomiya

PY - 1998/10/1

Y1 - 1998/10/1

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AB - Layered vanadium oxides, (NayAg1-y)2V4O11 (y = 0.77-0.98) are prepared by substituting part of the silver ions in Ag2V4O11 with sodium ions using an ion-exchange reaction in molten nitrate salts. These oxides exhibit less capacity loss during repeated cycling than non-substituted oxide, Ag2V4O11. This is mainly because the structural change into an amorphous state upon lithiation is restricted by the pillar effect in which unextractable sodium ions connect adjacent layers during lithium insertion/extraction.

KW - Discharge capacity

KW - Ion exchange

KW - Lithium

KW - Silver vanadate

KW - Sodium

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