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Title: Atomic structure of sensitive battery materials and interfaces revealed by cryo–electron microscopy

Journal Article · · Science
ORCiD logo [1]; ORCiD logo [1]; ORCiD logo [1];  [1]; ORCiD logo [1]; ORCiD logo [1]; ORCiD logo [2];  [1]; ORCiD logo [1];  [3]; ORCiD logo [2]; ORCiD logo [4]; ORCiD logo [5]; ORCiD logo [6]
  1. Stanford Univ., Stanford, CA (United States)
  2. Stanford Univ. School of Medicine, Stanford, CA (United States)
  3. ShanghaiTech Univ., Shanghai (China)
  4. Stanford Univ., Stanford, CA (United States); Univ. Siegen, Siegen (Germany)
  5. Stanford Univ., Stanford, CA (United States); Stanford Univ. School of Medicine, Stanford, CA (United States)
  6. Stanford Univ., Stanford, CA (United States); SLAC National Accelerator Lab., Menlo Park, CA (United States)

Whereas standard transmission electron microscopy studies are unable to preserve the native state of chemically reactive and beam-sensitive battery materials after operation, such materials remain pristine at cryogenic conditions. It is then possible to atomically resolve individual lithium metal atoms and their interface with the solid electrolyte interphase (SEI). We observe that dendrites in carbonate-based electrolytes grow along the < 111 > (preferred), < 110 >, or < 211 > directions as faceted, single-crystalline nanowires. These growth directions can change at kinks with no observable crystallographic defect. As a result, we reveal distinct SEI nanostructures formed in different electrolytes.

Research Organization:
SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States)
Sponsoring Organization:
USDOE
Grant/Contract Number:
AC02-76SF00515
OSTI ID:
1463306
Journal Information:
Science, Vol. 358, Issue 6362; ISSN 0036-8075
Publisher:
AAASCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 777 works
Citation information provided by
Web of Science

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