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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 6,402 1 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 5,354 9 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 2,157 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 8,747 3 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 5,875 4 View
Apart from conductivity of current collectors, what is the other property that can have impact on Battery performance and how? Thanks in advance
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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...
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