Li-ion batteries used in automobiles typically use aLiMn2O4 cathode in place of the LiCoO2 cathode found in most Li-ion batteries. (a) Calculate the mass percent lithiumin each electrode material. (b) Which material has ahigher percentage of lithium? Does this help to explainwhy batteries made with LiMn2O4 cathodes deliver lesspower on discharging? (c) In a battery that uses a LiCoO2cathode, approximately 50% of the lithium migrates fromthe cathode to the anode on charging. In a battery thatuses a LiMn2O4 cathode, what fraction of the lithium inLiMn2O4 would need to migrate out of the cathode todeliver the same amount of lithium to the graphite anode?

Mass of LiMn2O4 = 180.8 g/mol Mass of LiCoO2 = 97.87 g/mol Mass of Li = 6.941 g/mol a) Mass…

Answered: Li-ion batteries used in automobiles…

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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Li-ion batteries used in automobiles typically use a
LiMn₂O₄ cathode in place of the LiCoO₂ cathode found in most Li-ion batteries. (a) Calculate the mass percent lithium
in each electrode material. (b) Which material has a
higher percentage of lithium? Does this help to explain
why batteries made with LiMn₂O₄ cathodes deliver less
power on discharging? (c) 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?

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