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Ultrathin Direct Atomic Layer Deposition on Composite Electrodes for Highly Durable and Safe Li‐Ion Batteries
Author(s) -
Jung Yoon Seok,
Cavanagh Andrew S.,
Riley Leah A.,
Kang SunHo,
Dillon Anne C.,
Groner Markus D.,
George Steven M.,
Lee SeHee
Publication year - 2010
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.200903951
Subject(s) - atomic layer deposition , electrode , materials science , layer (electronics) , composite number , graphite , deposition (geology) , nanotechnology , optoelectronics , composite material , chemistry , sediment , paleontology , biology
Direct atomic layer deposition (ALD) on composite electrodes leads to ultrathin conformal protective coatings without disrupting inter‐particle electronic pathways. Al 2 O 3 ‐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 °C. In sharp contrast, ALD on powder results in poorer cycle retention than bare NG.