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Questions related from Asla Bish
Sometimes before charge/discharge Li ion half cells do measure negative OCV open circuit voltage ( ~ -1.5 V). It's very rare but did came across some of the cells. Could you please share your...
04 November 2019 6,480 1 View
In transition metal oxide compounds (Eg.NaNi0.5Mn0.5O2, layered structure), each transition metal is co-ordinated with 6 oxygen atoms (octahedral coordination type ). However i have seen in many...
15 February 2018 9,750 2 View
I want to measure the impedance of a Sodium ion coin cell battery. However i was wondering which mode to use? Which is the most common mode? I tried with potentiostatic mode but my plot below 1Hz...
27 August 2017 4,780 7 View
Thank you for your time.
18 August 2017 7,045 7 View
I have noticed in many papers of Li/Na ion battery, they provide 5mV voltage for EIS test. Thank you for your time.
10 August 2017 1,216 9 View
I am heating my sample (NaNiCoMnO2) at 900 deg. C in presence of air for 12 hours to form metal oxide. After heating to 900 deg. C the quartz tube becomes whitish (See the attached picture) ....
10 June 2017 5,406 9 View
After assembling the coin cell (half cell), is there a way to detect/ predict the bad cell without charging the cell? So that we can reduce the possibility of coin cell getting explode during...
25 May 2017 827 13 View
In Li-Ion Battery papers i have seen in Nyquist plot (EIS plot) they categorize different resistance depending upon the frequency. Low frequency region is Warburg impedance, high frequency region...
22 March 2017 2,207 7 View
I am trying to synthesize NaNi1/3Co1/3Mn1/3O2 material. I used sol-gel method maintaining pH of 10 and citric acid as chelating agent. I used sodium acetate, manganese acetate, cobalt acetate and...
12 March 2017 8,790 3 View
Gaussian System in the sense that all the variables involve to define the system should be Gaussian distribution? I read so many papers using Kalman Filter for Battery modeling, SOC...
15 February 2017 5,870 0 View
We always observe a gap between the charging and discharging curve for different Li-ion battery cathode materials. I read in literature that polarization and overpotential is the main reason for...
12 February 2017 5,931 4 View
Please see the attached picture for the equation. Value of x ranges from 0 to 1. Reason for equivalency?
02 November 2015 4,219 5 View
Apart from conductivity of current collectors, what is the other property that can have impact on Battery performance and how? Thanks in advance
15 October 2015 5,844 18 View
Is there any specific test method to prove that battery has 1C capability (Charge C rate @1C, Discharge C-rate @1C, Cycle life @1C)? Any testing method that would confirm the battery technology...
01 January 1970 8,702 3 View
