Atomic/Molecular Layer Deposition of Lithium Terephthalate Thin Films as High Rate Capability Li-Ion Battery Anodes.

Content Provider	Semantic Scholar
Author	Nisula, Mikko Karppinen, Maarit
Copyright Year	2016
Abstract	We demonstrate the fabrication of high-quality electrochemically active organic lithium electrode thin films by the currently strongly emerging combined atomic/molecular layer deposition (ALD/MLD) technique using lithium terephthalate, a recently found anode material for lithium-ion battery (LIB), as a proof-of-the-concept material. Our deposition process for Li-terephthalate is shown to well comply with the basic principles of ALD-type growth including the sequential self-saturated surface reactions, a necessity when aiming at micro-LIB devices with three-dimensional architectures. The as-deposited films are found crystalline across the deposition temperature range of 200-280 °C, which is a trait highly desired for an electrode material but rather unusual for hybrid inorganic-organic thin films. Excellent rate capability is ascertained for the Li-terephthalate films with no conductive additives required. The electrode performance can be further enhanced by depositing a thin protective LiPON solid-state electrolyte layer on top of Li-terephthalate; this yields highly stable structures with capacity retention of over 97% after 200 charge/discharge cycles at 3.2 C.
File Format	PDF HTM / HTML
DOI	10.1021/acs.nanolett.5b04604
PubMed reference number	26812433
Journal	Medline
Volume Number	16
Issue Number	2
Alternate Webpage(s)	https://research.aalto.fi/files/9124869/ERC_14_accepted.pdf
Alternate Webpage(s)	https://doi.org/10.1021/acs.nanolett.5b04604
Journal	Nano letters
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article