What is the reason behind the voltage drop of Li-ion batteries operated at low temperatures?

I have been testing Li-ion pouch cells at low temperature in the potential window of 2.8-4.1 V. I found that the pouch cell starts its charging from 3.2 V (instead of 2.8 V) and discharging from...

04 May 2019 5,665 4 View

What is the relationship between the resistance and dimensions of the Li-ion batteries?

Is it possible that the dimension of a battery can influence the overall resistance? For example, regarding resistance, are the cylindrical and pouch cell same or different? If it different which...

10 November 2018 6,697 5 View

What is the difference between Galvanostatic Impedance Spectra and Potentiostatic Impedance Spectra?

In Gamry instrument, i found different modes of Impedance spectra analysis. I am curious to know the exact differences.

04 May 2018 2,900 1 View

flexibility of polymers chain

effect of double bond on the flexibility of polymers

07 April 2021 0 0 View

Formulation of polymer color flakes

I am writing to request some information for making polymer color flakes. I would appreciate the help.

17 March 2021 0 0 View

Guidelines for survey (question type) analysis?

Hi. Please tell me what guidelines should i need to follow for questionaries' type research work in India. It is not hospital based work, we are conduction basic institutional based qualitative...

03 March 2021 2,037 3 View

What is the production process of CaFe ferroalloys?

I looking for ferro calcium production process

03 March 2021 1,755 4 View

How to access MSCI KLD Stats and Sustainalytics?

Hello all, I'm currently working on my undergraduate thesis and I'm having difficulties trying to access KLD Stats and Sustainalytics because my campus Airlangga University and apparently other...

02 March 2021 8,525 1 View

Ideas for Phd's Thesis on pricing (Marketing)?

Hi everyone, I'm studying Marketing and I would like to write my PhD thesis on the topic of pricing. Any specific ideas?

02 March 2021 9,706 5 View

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02 March 2021 3,060 3 View

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02 March 2021 932 1 View

12% ledeburitic cold work tool steel, etched for revealing retained austenite, any help for clarifying?

Hello everyone. Given microstructure image belongs to a 12% ledeburitic cold work tool steel (annealed and tempered). The sample was etched with picral (100 mL ethanol and 4 g picric acid). I...

02 March 2021 4,119 3 View

How to calculate BREQ 3 questionnaire?

how to calculate BEHAVIOURAL REGULATION IN EXERCISE QUESTIONNAIRE BREQ 3 ,which contain 24 questions and each question has 5 answers (0- Strongly disagree , 1-disagree, 2- Neither agree nor...

02 March 2021 811 3 View