Joao Fonseca

5 Questions 3 Answers 0 Followers

Questions related from Joao Fonseca

PTFE as a binder for Lithium ion batteries cathode, how to ?

Numerous articles mention the combination of metal oxide, carbon black, and PTFE as a binder, followed by pressing onto an Al mesh. Yet, I encounter difficulties in achieving uniform pellets using...

08 December 2023 4,257 3 View

How can I accurately calculate the NP Ratio for Li-Ion Batteries, and what's the essential surface area to consider?

Hello, In numerous research papers, they mention N/P ratios, measured in mA/cm2 units. I am curious about the specific area considered in a coin cell. When envisioning the cathode as a cylinder,...

25 July 2023 931 1 View

Lithium ion battery cycling voltages, how to choose ?

Hi all, In electrochemical measurements, it is intriguing to me how different voltage windows are elected for various active materials. Could someone please cite the key parameters to bear in...

12 July 2023 8,362 1 View

Lithium ion batteries cycling voltage ? How do you set the voltage windows ?

Hello all, My question pertains to the rationale behind selecting the lower and upper voltage limits for the electrochemical window in lithium-ion batteries, regardless of the active material...

10 July 2023 1,768 1 View

Can a SiC polytype be determined by RHEED ? If so How ?

The title of the question is self-explanatory

07 January 2023 5,509 3 View