Page 31 - Guide to Lithium-ion Battery Solutions

Microanalysis
各種部材の微小領域の形状観察および導電性分布測定

Purpose Purpose

Surface shape observation in electrolyte Force curve measurement in electrolyte
solution solution

Samples Samples

Binder for negative electrode Binder for negative electrode

Data

(1) (2)

Data

(1) (2) (3)

Protuberant Flat

(3)

Sample Provision:Komaba Lab of Tokyo University of Science
Flat
Sample Provision:Komaba Lab of Tokyo University of Science
Result

Result The deflection of the cantilever was measured when the probe was pushed into the sample by about 15 nm, and a
force curve was obtained. Point B on the force curve indicates the start of the depression, and point A indicates a 15 nm
depression from point B. The amount of binder deformation can be obtained from the difference between the amount
It was confirmed that the flat binders (2) and (3) were uniformly gelled in the electrolyte. of indentation and the amount of deflection from point B to point A. From the data obtained, the amount of binder
SPM enables observation of an electrolyte in a real-world environment!
deformation indicates that (2) is the least rigid and (3) is the most rigid.

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