Operando electron magnetic measurements of Li-ion batteries

被引：55

作者：

Gershinsky, Gregory ^{[1
]}

Bar, Elad ^{[2
]}

Monconduit, Laure ^{[3
]}

Zitoun, David ^{[1
]}

机构：

[1] Bar Ilan Inst Nanotechnol & Adv Mat BINA, Dept Chem, IL-52900 Ramat Gan, Israel

[2] Bar Ilan Inst Nanotechnol & Adv Mat BINA, Dept Phys, IL-52900 Ramat Gan, Israel

[3] Univ Montpellier 2, ALISTORE European Res Inst CNRS AIME 3104, Inst Charles Gerhardt UMR CNRS 5253, F-34095 Montpellier 5, France

来源：

ENERGY & ENVIRONMENTAL SCIENCE | 2014年 / 7卷 / 06期

基金：

以色列科学基金会;

关键词：

IN-SITU; ANODE MATERIALS; ELECTROCHEMICAL LITHIATION; CATHODE MATERIALS; FESB2; NMR;

D O I：

10.1039/c4ee00490f

中图分类号：

O6 [化学];

学科分类号：

070301 [无机化学];

摘要：

One of the challenges in the development of batteries consists of investigating new electrode materials and comprehending the mechanism of lithium uptake. Herein, we report on the first operando measurements of electron magnetism in a battery during cycling. We have succeeded in designing a non-magnetic cell and have investigated the lithiation mechanism of FeSb2, a high energy density anode material. The stepwise increase of the magnetic moment reveals an increase of amorphous Fe nanoparticle size, while Sb undergoes reversible alloying with Li.

引用

页码：2012 / 2016

页数：5

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