Ultrathin Direct Atomic Layer Deposition on Composite Electrodes for Highly Durable and Safe Li-Ion Batteries

被引：512

作者：

Jung, Yoon Seok ^{[1
]}

Cavanagh, Andrew S. ^{[5
]}

Riley, Leah A. ^{[1
]}

Kang, Sun-Ho ^{[4
]}

Dillon, Anne C. ^{[6
]}

Groner, Markus D. ^{[7
]}

George, Steven M. ^{[2
,3
]}

Lee, Se-Hee ^{[1
]}

机构：

[1] Univ Colorado, Dept Mech Engn, Boulder, CO 80309 USA

[2] Univ Colorado, Dept Chem & Biochem, Boulder, CO 80309 USA

[3] Univ Colorado, Dept Chem & Biol Engn, Boulder, CO 80309 USA

[4] Argonne Natl Lab, Argonne, IL 60439 USA

[5] Univ Colorado, Dept Phys, Boulder, CO 80309 USA

[6] Natl Renewable Energy Lab, Golden, CO 80401 USA

[7] ALD NanoSolut Inc, Broomfield, CO 80020 USA

来源：

ADVANCED MATERIALS | 2010年 / 22卷 / 19期

关键词：

LITHIUM SECONDARY BATTERIES; NATURAL GRAPHITE ANODE; BINARY REACTION SEQUENCE; SURFACE MODIFICATION; ELECTROCHEMICAL PROPERTIES; CATHODE MATERIAL; INTERCALATION; INTERPHASE; CHEMISTRY; STABILITY;

D O I：

10.1002/adma.200903951

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Direct atomic layer deposition (ALD) on composite electrodes leads to ultrathin conformal protective coatings without disrupting inter-particle electronic pathways. Al2O3-coated natural graphite (NG) electrodes obtained by direct ALD on the as-formed electrode show exceptionally durable capacity retention even at an elevated temperature of 50 degrees C. In sharp contrast, ALD on powder results in poorer cycle retention than bare NC.

引用

页码：2172 / +

页数：6

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