Could you please tell about the percentage of active material,binder and solvent used in lithium ion coating?

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Madhu Chennabasappa

Hi Vallivel, the percentage or composition of cell depends on several factors. Most important on your active materials both cathode and anode, for instance, in case of NMC(LiNi1/3Mn1/3Co1/3) cathode ratio of active material: carbon black: binder:PVDF = 96%: 2%: 2% this can be cycled against anode combination of graphite:carbon black: carboxymethyl cellulose-styrene-butadiene rubber = 96%: 2%: 2%.

Vallivel Jegatheesh

Thank you Mr. Madhu for your valuable answer

Dear sir,

It is necessary to incorporate acetylene black in coating?now a days people are using SBR instead of PVDF. why cant we use SBR in cathode?

Hi,

SRB is good option as it is believed to be environmental friendly and low cost, compared to PVDF. As I mentioned, the combination I wrote is just one of the option. You can find several combination of binder-solvent for battery application in literature. Also you can work out the ratio of active material: binder: solvent (I gave example of 96:2:2) to get better performance, good consistent and reliable film coatings/electrodes.

Thank you sir