How to start making Li-ion batteries in lab?

I am about to start making Li-ion battery, but I want an idea to start with. Should I make electrode material, binders and slurry or what is the best way?

10 November 2017 4,730 2 View

How does the catalyst amount affects the polymer growth?

Catalyst affects the growth of polymer, but how does the amount of catalyst affects the polymer growth?

10 November 2017 206 4 View

In what condition can the stress triaxiality be greater than 1?

Why and How the stress triaxiality in a material becomes greater than 1? What is the physical significance of it? Kindly throw a light on it. Regards Aditya

06 July 2017 7,606 13 View

Can u please descibe about stacking fault energy of alloy 617?

In Alloy 617, in its as-received condition the twins are more prominent, but as aging proceeds twins disappear, Why? Can one measure stacking fault energy (SFE) with TEM?

05 June 2017 1,212 3 View

Can Super-alloys have strain hardening value > 0.6?

31 December 2016 4,851 2 View

Why polycrystalline material have a tendency to get more brittle when their strength is increased?

The origin of loss of ductility is primarily due to intergranular fracture. When such fracture occurs, polycrystalline material shows a severe brittleness & poor ductility, irrespective of...

07 August 2016 5,239 6 View

How to maximize the tensile data output?

The Engineering Stree/Strain, true stress/ strain are normal values one get from tensile data. What other material properties can be obtained from tensile data?

07 August 2016 6,234 6 View

What is grain in metallurgy?

How to define a grain in relation to metallurgy? Is it a right to say :a grain consists of crystals oriented in a particular direction ?

07 August 2016 6,008 4 View

Can Luders band appear in Super alloys?

Luders band arises in low carbon steels and these bands then requires less stress for their propagation than for their formation because of the freeing of dislocations from their solute atmospheres.

07 August 2016 1,407 4 View

What is the role of Ni3Si in Nickel based Superalloy?

03 April 2016 9,262 1 View

Is there any tutorial for comsol general projections?

Hi, im trying to make a projection in a 3d comsol model. I have a non uniforme chanel and my intention is to get the average tempreture in the y-z cross section and se the average tempreture...

02 March 2021 4,624 4 View

Is it possible to do piezoelectric coupling in ANSYS-APDL or COMSOL between tapered substrate and rectangular piezoelectric patch?

How to do Piezoelectric coupling in ANSYS-APDL or COMSOL between tapered substrate and rectangular piezoelectric patch? Piezoelectric coupling between the rectangular substrate and rectangular...

02 March 2021 9,833 3 View

Timeout error!! Processor in the loop (PIL) using STM32F4 Matlab 2018a?

Dear Researchers I am trying to perform a PIL simulation using STM32F4 Discovery board and comunication serial USB TO TTL. During simulation I receive the following timeout error: An error...

01 March 2021 2,327 1 View

How to size battery banks?

I am designing a small grid connected solar PV power-plant. As the battery's capacity is specified in Ah and demand in kWh. What is the best way to size the battery bank? I have battery price in...

28 February 2021 1,638 3 View

How can i resolve the "final solutuin is not converged" error in Comsol for my heat transfer simulation??

I have been trying to simulate heat transfer problem in Comsol 5.5 for long time but it always throw an error stating: "Failed to find a solution. Maximum number of Newton iterations...

28 February 2021 8,626 3 View

How to model the battery pack in PSIM or PSCAD?

Hello, I have simulated a single battery cell using Thevenin equivalent circuit. For a battery pack, I have a large number of cells connected in series and parallel connections. Is there any way...

28 February 2021 2,116 1 View

How to eliminate Steady state error from Reinforcement learning genetic algorithm code?

The following code (see 1st 2 images attached) is used to produce PID controller values that are designed to control the system (G). The code finds the PID controller values (noted as k) by using...

28 February 2021 6,560 14 View

How to prevent ANFIS Model from negative prediction values in MATLAB?

I have input and output data set for "ANFIS modeling in MATLAB", and I am getting some negative predicted values of output in testing. However, the predicted values of output in training are...

28 February 2021 3,459 3 View

How to use measure capacitance change in COMSOL time dependent study ?

I want to measure change of capacitance due to relative displacement between two parallel plates in COMSOL. Distance between two plates changes with time. So I'm using a time dependent study but...

26 February 2021 8,567 3 View

How does an AC-DC power supply Flyback Converter Based USB Charger Model using Matlab/Simulink looks like?

I am required to learn about Flyback converters and I got stuck not knowing to full design of the power supply flyback converter Based USB Charger Model using Simulink, especially the design model...

25 February 2021 5,435 2 View