Plunkett, Samuel T.’s team published research in ACS Applied Energy Materials in 2020-12-28 | CAS: 143-24-8

ACS Applied Energy Materials published new progress about Battery cathodes. 143-24-8 belongs to class ethers-buliding-blocks, name is 2,5,8,11,14-Pentaoxapentadecane, and the molecular formula is C10H22O5, COA of Formula: C10H22O5.

Plunkett, Samuel T. published the artcileCharge Transport Properties of Lithium Superoxide in Li-O2 Batteries, COA of Formula: C10H22O5, the main research area is charge transport property lithium superoxide lithium oxygen battery.

The theor. energy d. of lithium-oxygen (Li-O2) batteries is extremely high, although there are many challenges that must be overcome to achieve high energy d. in a manufactured cell. For example, little is known about the properties of one of the key intermediates, lithium superoxide (LiO2), which until recently had not been stabilized in bulk form. In this work, lithium superoxide was deposited onto iridium-reduced graphene oxide (Ir-rGO) cathodes in a Li-O2 system under a flow of O2. Lithium peroxide (Li2O2) was subsequently produced on the cathode surface in an inert Ar atm. Based on a detailed anal. of electrochem. impedance spectroscopy data, it was demonstrated exptl. for the first time that the charge transport resistance through LiO2 was much lower than for Li2O2 and correlated with lower LiO2 charge overpotentials. This result indicates that LiO2 has good electronic conductivity and confirms previous theor. predictions that bulk LiO2 has better charge transport properties than Li2O2. In addition, impedance and other characterization of Li2O2 formation from LiO2 in an Ar atm. revealed that when surface-mediated Li2O2 formation occurs, it has a significantly lower discharge potential than when it forms through a solution-phase-mediated process. These significant findings will contribute to the development of Li-O2 batteries through better understanding of LiO2 properties and formation mechanisms.

ACS Applied Energy Materials published new progress about Battery cathodes. 143-24-8 belongs to class ethers-buliding-blocks, name is 2,5,8,11,14-Pentaoxapentadecane, and the molecular formula is C10H22O5, COA of Formula: C10H22O5.

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem