In this problem, we are asked to find the fraction of the lithium in LiMn2O4 that would need to migrate out of the cathode to deliver the same amount of lithium to the graphite anode.
Recall that a battery is a portable, self-contained electrochemical power source that consists of one or more voltaic cells.
To solve this problem:
Step 1. Find the percent of Lithium in each cathode.
Step 2. Compare the percent of lithium content of the two cathodes.
Step 3. Determine the fraction or percent needed.
Li-ion batteries used in automobiles typically use a LiMn2O4 cathode in place of the LiCoO2 cathode found in most Li-ion batteries.
In a battery that uses a LiCoO2 cathode approximately 50% of the lithium migrates from the cathode to the anode on charging. In a battery that uses a LiMn2O4 cathode what fraction of the lithium in LiMn2O4 would need to migrate out of the cathode to deliver the same amount of lithium to the graphite anode?
Frequently Asked Questions
What scientific concept do you need to know in order to solve this problem?
Our tutors have indicated that to solve this problem you will need to apply the Batteries and Electricity concept. You can view video lessons to learn Batteries and Electricity . Or if you need more Batteries and Electricity practice, you can also practice Batteries and Electricity practice problems.
What professor is this problem relevant for?
Based on our data, we think this problem is relevant for Professor Bender's class at LU.