Open AccessСоздание анода литий-ионного аккумулятора на основе нанопористого германия, сформированного имплантацией ионами серебра
Author(s) -
Т.П. Гаврилова,
С.М. Хантимеров,
В.И. Нуждин,
В.Ф. Валеев,
А.М. Рогов,
А.Л. Степанов
Publication year - 2022
Publication title -
pisʹma v žurnal tehničeskoj fiziki
Language(s) - English
Resource type - Journals
eISSN - 1726-7471
pISSN - 0320-0116
DOI - 10.21883/pjtf.2022.08.52364.19096
Subject(s) - anode , materials science , ion , nanoporous , electrode , lithium (medication) , ion beam , substrate (aquarium) , layer (electronics) , crystal (programming language) , ion implantation , optoelectronics , analytical chemistry (journal) , nanotechnology , chemistry , medicine , oceanography , organic chemistry , endocrinology , geology , computer science , programming language , chromatography
In this work, we investigated the possibility of using a nanoporous Ge layer (p-Ge) formed by implantation with Ag+ ions on a single crystal c-Ge substrate as an anode electrode for a lithium-ion battery. For this, ion implantation of c-Ge plates was carried out at an energy of E = 30 keV, a current density in the ion beam of J=5 μA/cm2, and a dose of D=1.3·1016 ion/cm2. It is shown that the obtained spongy Ag:p-Ge layers, consisting of intertwining Ge nanowires, demonstrate a high Coulomb efficiency (> 97%) after the first cycle and show up to 79.5% of reversible capacity after 1000 cycles.