Cathode electrolyte diagnostics based on scanning probe microscopy

Di Huang; Chaiwat Engtrakul; Sanjini Nanayakkara; Bobby To; Rong He; Meng Zhou; Hongmei Luo; Robert C. Tenent

doi:10.1117/12.2559415

20 May 2020 Cathode electrolyte diagnostics based on scanning probe microscopy

Di Huang, Chaiwat Engtrakul, Sanjini Nanayakkara, Bobby To, Rong He, Meng Zhou, Hongmei Luo, Robert C. Tenent

Proceedings Volume 11387, Energy Harvesting and Storage: Materials, Devices, and Applications X; 113870D (2020) https://doi.org/10.1117/12.2559415
Event: SPIE Defense + Commercial Sensing, 2020, Online Only

Abstract

Various processes lead to degradation of cathodes in lithium-ion batteries. Questions remain regarding mechanisms of many of these processes. Probe microscopy methods including scanning electrochemical microscopy (SECM) are capable of directly probing processes at the cathode/electrolyte interface. SECM uses a small electrode to perform rapid electrochemical analysis of transient species generated at an active cathode/electrolyte interface. This paper discusses the background of the SECM instrument and its application to lithium-ion battery research. We also describe the application of SECM methods to the study of cathode degradation processes observed in lithium-ion batteries. Specifically, we focus on characterizing the dissolution of manganese from LiMn₂O₄ (LMO) based on recent debate in the literature. We describe experiments to observe and characterize the electrochemical properties of manganese complexes emerging from degrading LMO electrode materials.

Conference Presentation

Citation Download Citation

Di Huang, Chaiwat Engtrakul, Sanjini Nanayakkara, Bobby To, Rong He, Meng Zhou, Hongmei Luo, and Robert C. Tenent "Cathode electrolyte diagnostics based on scanning probe microscopy", Proc. SPIE 11387, Energy Harvesting and Storage: Materials, Devices, and Applications X, 113870D (20 May 2020); https://doi.org/10.1117/12.2559415

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available