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Chemical and Structural Stability of Lithium-Ion Battery Electrode Materials under Electron Beam

Journal Article · · Scientific Reports
DOI:https://doi.org/10.1038/srep05694· OSTI ID:1371720
 [1];  [2];  [1];  [3]
  1. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Environmental Energy Technologies Division
  2. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Environmental Energy Technologies Division; Univ. of California, Berkeley, CA (United States). Dept. of Materials Science and Engineering
  3. Brookhaven National Lab. (BNL), Upton, NY (United States). Center for Functional Nanomaterials
+ Show Author Affiliations
Our investigation of chemical and structural dynamics in battery materials is essential to elucidation of structure-property relationships for rational design of advanced battery materials. Spatially resolved techniques, such as scanning/transmission electron microscopy (S/TEM), are widely applied to address this challenge. But, battery materials are susceptible to electron beam damage, complicating the data interpretation. In this study, we demonstrate that, under electron beam irradiation, the surface and bulk of battery materials undergo chemical and structural evolution equivalent to that observed during charge-discharge cycling. In a lithiated NiO nanosheet, a Li2CO3-containing surface reaction layer (SRL) was gradually decomposed during electron energy loss spectroscopy (EELS) acquisition. For cycled LiNi0.4Mn0.4Co0.18Ti0.02O2 particles, repeated electron beam irradiation induced a phase transition from an R$$\bar{3}$$m layered structure to an rock-salt structure, which is attributed to the stoichiometric lithium and oxygen removal from R$$\bar{3}$$m 3a and 6c sites, respectively. Nevertheless, it is still feasible to preserve pristine chemical environments by minimizing electron beam damage, for example, in using fast electron imaging and spectroscopy. Finally, the present study provides examples of electron beam damage on lithium-ion battery materials and suggests that special attention is necessary to prevent misinterpretation of experimental results.
Research Organization:
Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
Sponsoring Organization:
USDOE Office of Energy Efficiency and Renewable Energy (EERE), Vehicle Technologies Office (EE-3V); USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
Grant/Contract Number:
AC02-05CH11231; AC02-98CH10886
OSTI ID:
1371720
Report Number(s):
LBNL--181657; ir:181657
Journal Information:
Scientific Reports, Journal Name: Scientific Reports Journal Issue: 1 Vol. 4; ISSN 2045-2322
Publisher:
Nature Publishing GroupCopyright Statement
Country of Publication:
United States
Language:
English

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Cited By (13)

Multifunctionality of silver closo-boranes journal April 2017
Unravelling structural ambiguities in lithium- and manganese-rich transition metal oxides journal October 2015
Discrete Li-occupation versus pseudo-continuous Na-occupation and their relationship with structural change behaviors in Fe2(MoO4)3 journal March 2015
Structural and morphological peculiarities of hybrid Au/nanodiamond engineered nanostructures journal August 2016
High-Performance Solar-Blind Deep Ultraviolet Photodetector Based on Individual Single-Crystalline Zn 2 GeO 4 Nanowire journal December 2015
Atomic-Scale Structure Evolution in a Quasi-Equilibrated Electrochemical Process of Electrode Materials for Rechargeable Batteries journal February 2015
Electrochemical and Structural Analysis in All‐Solid‐State Lithium Batteries by Analytical Electron Microscopy: Progress and Perspectives journal October 2019
Solving Key Challenges in Battery Research Using In Situ Synchrotron and Neutron Techniques journal March 2017
Narrowing the Gap between Theoretical and Practical Capacities in Li-Ion Layered Oxide Cathode Materials journal July 2017
Oxygen Release Degradation in Li‐Ion Battery Cathode Materials: Mechanisms and Mitigating Approaches journal April 2019
Cryo-STEM mapping of solid–liquid interfaces and dendrites in lithium-metal batteries journal August 2018
Thermally driven mesoscale chemomechanical interplay in Li 0.5 Ni 0.6 Mn 0.2 Co 0.2 O 2 cathode materials journal January 2018
Electrochemical Kinetics of SEI Growth on Carbon Black: Part I. Experiments journal January 2019

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Related Subjects

25 ENERGY STORAGE
36 MATERIALS SCIENCE
batteries
optical spectroscopy