Transfer of lithium foil under inert conditions using CleanConnect inert gas transfer system

Neelisetty, Krishna Kanth; Stetina, Jakub; Vondruška, Jindřich; Trenz, Milos; Kazda, Tomáš; Hrouzek, Michal; Wandrol, Petr

doi:10.1017/s1431927621008941

Cited by 3 publications

(3 citation statements)

References 2 publications

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“…The sample was then transferred back to a glovebox using the IM4000Plus air protection capsule. The cross-sections were then transferred without air exposure to a Thermo Fisher Scientific Scios Dualbeam using the CleanConnect inert gas transfer system [69] for imaging. Secondary electron (SE) images were acquired using accelerating voltage and beam current of 2 kV and 100 pA, respectively.…”

Section: Scanning Electron Microscopymentioning

confidence: 99%

Quantifying Electrochemical Degradation in Single-crystalline LiNi0.8Mn0.1Co0.1O2–Graphite pouch cells through Operando X-ray and Post-mortem Investigations

S. Menon,

Shah,

A. Gott

et al. 2023

Preprint

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Layered nickel-rich lithium transition metal oxides (LiNixMnyCo1−x−yO2; where x ≥ 0.8), with single-crystalline morphology, are promising future high-energy-density Li-ion battery cathodes due to their ability to mitigate particle-cracking-induced degradation. This is due to the absence of grain boundaries in these materials, which prevents the build-up of bulk crystallographic strain during electrochemical cycling. Compared to their polycrystalline counterparts, there is a need to study single-crystalline Ni-rich cathodes using operando X-ray methods in uncompromised machine-manufactured industry-like full cells to understand their bulk degradation mechanisms as a function of different electrochemical cycling protocols. This can help us identify factors to improve their long-term performance. Here, through in-house operando X-ray studies of pilot-line-built LiNi0.8Mn0.1Co0.1O2–Graphite A7 pouch cells, it is shown that their electrochemical capacity fade under harsh conditions (2.5–4.4 V and 40 °C for 100 cycles at C/3 rate) primarily stems from the high-voltage reconstruction of the cathode surface from a layered to a cubic (rock salt) phase that impedes Li+ kinetics and increases cell impedance. Post-mortem electron and X-ray microscopy show that these cathodes can withstand severe anisotropic structural changes and show no cracking when cycled under such conditions. Comparing these results to those from commercial Li-ion cells with surface-modified single-crystalline Ni-rich cathodes, it is identified that cathode surface passivation can mitigate this type of degradation and prolong cycle life. In addition to furthering our understanding of degradation in single-crystalline Ni-rich cathodes, this work also accentuates the need for practically relevant and reproducible fundamental investigations of Li-ion cells and presents a methodology for achieving this.

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Section: Scanning Electron Microscopymentioning

confidence: 99%

Quantifying Electrochemical Degradation in Single-crystalline LiNi0.8Mn0.1Co0.1O2–Graphite pouch cells through Operando X-ray and Post-mortem Investigations

S. Menon,

Shah,

A. Gott

et al. 2023

Preprint

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show abstract

“…Two different transfer modules were designed for airless transfer of the electrical testing holder from glove box to SEM and back. First module, which is shown in Figure 1, is based on the Clean Connect device [4]. The modified shuttle contains the electrical testing holder and a stub for bulk material, from which the battery can be created by FIB.…”

mentioning

confidence: 99%

“…The battery testing holder was electrically connected with a SEM feedthrough via a SEM stage adapter. A shuttle containing the testing holder and a stub for bulk battery materials was transferred to SEM under argon using Clean Connect transfer device[4].…”

mentioning

confidence: 99%

Battery in situ Electrical Testing in FIB-SEM

Novák

Glajc

Klvac

2022

Microscopy and Microanalysis

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Quantifying Electrochemical Degradation in Single-Crystalline LiNi0.8Mn0.1Co0.1O
Menon,
Shah,
Gott
et al. 2024
PRX Energy
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Transfer of lithium foil under inert conditions using CleanConnect inert gas transfer system

Cited by 3 publications

References 2 publications

Quantifying Electrochemical Degradation in Single-crystalline LiNi0.8Mn0.1Co0.1O2–Graphite pouch cells through Operando X-ray and Post-mortem Investigations

Quantifying Electrochemical Degradation in Single-crystalline LiNi0.8Mn0.1Co0.1O2–Graphite pouch cells through Operando X-ray and Post-mortem Investigations

Battery in situ Electrical Testing in FIB-SEM

Quantifying Electrochemical Degradation in Single-Crystalline LiNi0.8Mn0.1Co0.1O
Menon,
Shah,
Gott
et al. 2024
PRX Energy
2
0
0
0
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Transfer of lithium foil under inert conditions using CleanConnect inert gas transfer system

Cited by 3 publications

References 2 publications

Quantifying Electrochemical Degradation in Single-crystalline LiNi0.8Mn0.1Co0.1O2–Graphite pouch cells through Operando X-ray and Post-mortem Investigations

Quantifying Electrochemical Degradation in Single-crystalline LiNi0.8Mn0.1Co0.1O2–Graphite pouch cells through Operando X-ray and Post-mortem Investigations

Battery in situ Electrical Testing in FIB-SEM

Quantifying Electrochemical Degradation in Single-Crystalline LiNi0.8Mn0.1Co0.1OMenon, Shah, Gott et al. 2024PRX Energy2000View full textAdd to dashboardCite

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Quantifying Electrochemical Degradation in Single-Crystalline LiNi0.8Mn0.1Co0.1O
Menon,
Shah,
Gott
et al. 2024
PRX Energy
2
0
0
0
View full text Add to dashboard Cite