15 Questions 24 Answers 0 Followers
Questions related from Fatemeh Shekofteh
In the context of Lithium-Ion battery, the words mass trasfer/transport and charge transfer are often used. Could anyone explain these two concept?
20 September 2024 3,386 4 View
I have access to a device that only has the LSV technique in its software. I think it is possible to take a CV test with this device, because by defining two consecutive LSV tests, one should have...
29 August 2023 4,841 3 View
When making a lithium-ion half coin cell, the first thing that is done is to measure its ocv, but it differs from one cell to another, although both are cut from the same electrode, for example,...
10 August 2023 947 2 View
Why the "formation" process of a lithium-ion coin cell called so? Also please recommend some good articles about formation protocoles or processes for research coin cells (full cells and half...
24 July 2023 2,100 2 View
We see some times the data changed in cyclability curves of Lithium-ion cells, as shown by red arrows in the attached picture. What reasons could we give for these changes?
04 July 2023 4,913 0 View
For the lithium-ion cells, what determines the OCV (open circuit voltage) of a fresh assembly half coin cell? how much must it be for anode type active materials and cathode type active...
29 June 2023 1,050 2 View
I want to know the storage condition (like temperature, humidity,etc) of some materials in the field of Lithium-Ion battery. The materials are: 1. SBR 2. CMC 3. NMP 4. PVDF 5. Electrolyte (LiPF6...
05 May 2023 9,650 7 View
When I coated copper foil with anode slurry, the surface seemed uneven, and tiny grains were seen. like the following image. I can't understand why. I tried to solve this problem (for example by...
07 February 2023 3,300 8 View
What does it mean if the OCV of a lithium-ion half-cell decreases after assembly in the glove box? Because usually it should be close to 3V, but when we tested our cell, their OCV was around 2.3V...
16 January 2023 8,343 7 View
It is an easy question but the answer could help me a lot. I am going to make the electrodes for a lithium ion coin cell. I want to know what are the necessary steps to clean the aluminum and...
26 November 2022 2,553 5 View
Is it possible to have different relative peak intensities in the xrd patterns of a sample taken with two different instruments and consequently with two different operators?And how is it...
24 October 2022 6,646 6 View
I asked this question about XRD analysis and it was answered very well. (https://www.researchgate.net/post/Is_it_essential_to_activate_MOFs_before_XRD_analysis) Now I want to know for which one...
22 April 2022 1,258 0 View
Is it essential to activate MOFs before XRD analysis? if yes what is the difference between two XRD patterns of activated MOFs and non-activated one?
22 February 2022 6,959 18 View
I want to calculate the yield percent of ZIF-67. In the attached image there are a experimental route for synthesis of ZIF-67. I want to know how it calculate the yield percent is 73%?
30 November 2021 9,988 4 View
What is the mean percent for production yield in co-prcipitation synthesis methods? And how we can to Maximize production yield in co-precipitation synthesis method? Thanks
20 October 2021 8,900 4 View
