Rapid SECM probing of dissolution of LiCoO2 battery materials in an ionic liquid

Snook, Graeme A.; Huynh, Thuy Diem; Hollenkamp, Anthony F.; Best, Adam S.

doi:10.1016/j.jelechem.2012.08.021

Cited by 31 publications

(30 citation statements)

References 29 publications

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“…Snook et al. also performed SECM on LiCoO 2 , but focused on the behavior of the material in the presence of room‐temperature ionic liquids (RTILs), thus providing information about possible electrode degradation mechanisms . It was concluded that the reduction of Co 3+ to Co + , entailing dissolution, is a major contributor to the loss of capacity.…”

Section: Spm Studies Of the Positive Electrode Materials In Libsmentioning

confidence: 99%

Nanoscale Measurements of Lithium‐Ion‐Battery Materials using Scanning Probe Techniques

et al. 2016

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State‐of‐the‐art scanning probe microscopy (SPM) methods as applied to energy conversion and storage devices, specifically lithium‐ion batteries, are reviewed with an emphasis on the electroactive elements. The unique ability of SPM‐based methods to provide localized information has proven highly valuable for the in‐depth understanding of the fundamental mechanisms, processes, and degradation of lithium‐ion batteries (LIBs). As such, SPM analysis is poised to play a strong role in the competition for new higher performing LIBs, especially given the unprecedented choice and availability of SPM techniques tailored to provide physical and chemical information at the nanoscale.

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Section: Spm Studies Of the Positive Electrode Materials In Libsmentioning

confidence: 99%

Nanoscale Measurements of Lithium‐Ion‐Battery Materials using Scanning Probe Techniques

et al. 2016

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“…SEI growth is dynamic in that the formation, precipitation, and dissolution of SEI components take place simultaneously in the outer layer . The dissolution of SEI components is triggered by secondary reactions with HF and metal ions as, for instance,Co 2+ from the LiCoO 2 positive electrode …”

Section: Interfaces In Lithium‐ion Batteriesmentioning

confidence: 99%

“…[24,37] Thed issolution of SEI components is triggered by secondary reactions with HF [38] andm etal ions as,f or instance,Co 2 + from the LiCoO 2 positive electrode. [39] Thes tructure of the SEI has an impacto ni ts properties (e.g.,c ompactness, morphology and flexibility) influencing key performance data of LIBs. [19,24] However, the SEI composition is still ah ighly debated subject [19] and there is no detailed structural model of the SEI accounting for all experimental results,a nd the significance of the structural details remainsunclearinmany cases.Despite substantial efforts devoted to SEI investigation, [19,29,40] Winter [29] described the SEI as "the most importanta nd the least understood solid-electrolyte in rechargeable Li batteries".…”

Section: Structural Models For the Solid-electrolyte Interphasementioning

confidence: 99%

Review of Local In Situ Probing Techniques for the Interfaces of Lithium‐Ion and Lithium–Oxygen Batteries

et al. 2016

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Electrodes in lithium‐ion and post‐lithium‐ion batteries are made of composite materials exposing a variety of different surfaces towards the electrolyte. This causes a distribution of current densities and consequently locally different changes of interfaces and bulk materials that might be critical for the performance and durability of secondary batteries. The optimization of local structures of battery materials is hindered by a lack of local techniques that provide in situ reactivity information from such hidden interfaces. A variety of new electrochemical scanning probe techniques are currently adapted to the investigation of battery materials under near‐realistic environmental conditions. The review provides a critical assessment of this development with a particular emphasis on the assessment of the passivating properties of solid–electrolyte interphases, the extension of the concepts to lithium–oxygen cells, and attempts to image ion intercalation reactions.

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“…Snook et al [91] utilized SECM to investigate the mechanism for capacity fading of the LiCoO 2 electrode in ionic liquid. The probe tip of SECM was capable of detecting the soluble species released from the cathode, which is supposed to be the main cause for the degradation of LiCoO 2 .…”

Section: Cathode/electrolyte Interfacementioning

confidence: 99%

Progress of electrode/electrolyte interfacial investigation of Li-ion batteries via in situ scanning probe microscopy

2015

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Rapid SECM probing of dissolution of LiCoO2 battery materials in an ionic liquid

Cited by 31 publications

References 29 publications

Nanoscale Measurements of Lithium‐Ion‐Battery Materials using Scanning Probe Techniques

Nanoscale Measurements of Lithium‐Ion‐Battery Materials using Scanning Probe Techniques

Review of Local In Situ Probing Techniques for the Interfaces of Lithium‐Ion and Lithium–Oxygen Batteries

Progress of electrode/electrolyte interfacial investigation of Li-ion batteries via in situ scanning probe microscopy

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