title: ÐÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ðµ Ð¿ÑÐ¾ÑÐµÑÑÐ° Ð°ÐºÑÐ¸Ð²Ð°ÑÐ¸Ð¸ Ð¾Ð±Ð¾Ð³Ð°ÑÐµÐ½Ð½ÑÑ Ð»Ð¸ÑÐ¸ÐµÐ¼ ÐºÐ°ÑÐ¾Ð´Ð½ÑÑ Ð¼Ð°ÑÐµÑÐ¸Ð°Ð»Ð¾Ð²
title: Ð²ÑÐ¿ÑÑÐºÐ½Ð°Ñ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð±Ð°ÐºÐ°Ð»Ð°Ð²ÑÐ°
titleType: Subtitle
title: Studies of the activation process of lithium-rich cathode materials
Creators: name: Ð§ÐµÑÐ½ÑÐ²ÑÐºÐ¸Ð¹, ÐÐ»Ð°Ð´Ð¸ÑÐ»Ð°Ð²
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2021
Subjects: Ð¾Ð±Ð¾Ð³Ð°ÑÐµÐ½Ð½ÑÐµ Ð»Ð¸ÑÐ¸ÐµÐ¼ Ð¾ÐºÑÐ¸Ð´Ñ
ÑÐ»Ð¾Ð¸ÑÑÑÐµ Ð¾ÐºÑÐ¸Ð´Ñ
Ð»ÐµÐ³Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ðµ ÐºÐ°Ð»Ð¸ÐµÐ¼
Ð½Ð°Ð½ÐµÑÐµÐ½Ð¸Ðµ Ð¿Ð¾ÐºÑÑÑÐ¸Ð¹
Ð°ÑÐ¾Ð¼Ð½Ð¾-ÑÐ»Ð¾ÐµÐ²Ð¾Ðµ Ð¾ÑÐ°Ð¶Ð´ÐµÐ½Ð¸Ðµ
Ð¾ÐºÑÐ¸Ð´ ÑÐ°Ð½ÑÐ°Ð»Ð°
ÑÐ»ÐµÐºÑÑÐ¾Ñ Ð¸Ð¼Ð¸ÑÐµÑÐºÐ¸Ðµ Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ñ
Ð°ÐºÑÐ¸Ð²Ð°ÑÐ¸Ñ
Ð»Ð¸ÑÐ¸Ð¹-Ð¸Ð¾Ð½Ð½ÑÐµ Ð°ÐºÐºÑÐ¼ÑÐ»ÑÑÐ¾ÑÑ
lithium-rich oxides
layered oxides
potassium doping
coating
atomic layer deposition
tantalum oxide
electrochemical research
activation
lithium-ion batteries

description: Ð Ð´Ð°Ð½Ð½Ð¾Ð¹ ÑÐ°Ð±Ð¾ÑÐµ Ð¸ÑÑÐ»ÐµÐ´ÑÑÑÑÑ Ð¾Ð±Ð¾Ð³Ð°ÑÐµÐ½Ð½ÑÐµ Ð»Ð¸ÑÐ¸ÐµÐ¼ ÑÐ»Ð¾Ð¸ÑÑÑÐµ Ð¾ÐºÑÐ¸Ð´Ñ Ð¿ÐµÑÐµÑÐ¾Ð´Ð½ÑÑ Ð¼ÐµÑÐ°Ð»Ð»Ð¾Ð² (Li-rich Ð¾ÐºÑÐ¸Ð´Ñ). ÐÑÐ»Ð¸ Ð¿ÑÐ¾Ð°Ð½Ð°Ð»Ð¸Ð·Ð¸ÑÐ¾Ð²Ð°Ð½Ñ Ð½Ð°Ð¸Ð±Ð¾Ð»ÐµÐµ Ð¿ÐµÑÑÐ¿ÐµÐºÑÐ¸Ð²Ð½ÑÐµ Ð¿ÑÑÐ¸ ÑÐ»ÑÑÑÐµÐ½Ð¸Ñ ÑÐ°ÑÐ°ÐºÑÐµÑÐ¸ÑÑÐ¸Ðº Ð´Ð°Ð½Ð½ÑÑ ÐºÐ°ÑÐ¾Ð´Ð½ÑÑ Ð¼Ð°ÑÐµÑÐ¸Ð°Ð»Ð¾Ð², ÑÐ°ÐºÐ¸Ðµ ÐºÐ°Ðº Ð»ÐµÐ³Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ðµ Ð¸ Ð½Ð°Ð½ÐµÑÐµÐ½Ð¸Ðµ Ð¿Ð¾ÐºÑÑÑÐ¸Ð¹. ÐÑÑÐ¾Ð´Ñ Ð¸Ð· ÑÑÐ¾Ð³Ð¾ Ð±ÑÐ» Ð¿ÑÐ¾Ð¸Ð·Ð²ÐµÐ´ÐµÐ½ ÑÐ¸Ð½ÑÐµÐ· Li-richÐ¾ÐºÑÐ¸Ð´Ð°, ÐµÐ³Ð¾ Ð»ÐµÐ³Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ðµ ÐºÐ°Ð»Ð¸ÐµÐ¼, Ð° ÑÐ°ÐºÐ¶Ðµ Ð½Ð°Ð½ÐµÑÐµÐ½Ð¸Ðµ Ð¿Ð¾ÐºÑÑÑÐ¸Ñ Ð¸Ð· Ð¾ÐºÑÐ¸Ð´Ð° ÑÐ°Ð½ÑÐ°Ð»Ð° Ð¼ÐµÑÐ¾Ð´Ð¾Ð¼ Ð°ÑÐ¾Ð¼Ð½Ð¾-ÑÐ»Ð¾ÐµÐ²Ð¾Ð³Ð¾ Ð¾ÑÐ°Ð¶Ð´ÐµÐ½Ð¸Ñ. ÐÐ¾Ð»ÑÑÐµÐ½Ð½ÑÐµ ÐºÐ°ÑÐ¾Ð´Ð½ÑÐµ Ð¼Ð°ÑÐµÑÐ¸Ð°Ð»Ñ Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð»Ð¸ Ð¼ÐµÑÐ¾Ð´Ð¾Ð¼ ÑÐ¸ÐºÐ»Ð¸ÑÐµÑÐºÐ¾Ð¹ Ð·Ð°ÑÑÐ´ÐºÐ¸/ÑÐ°Ð·ÑÑÐ´ÐºÐ¸ Ð² Ð¸Ð½ÑÐµÑÐ²Ð°Ð»Ðµ Ð½Ð°Ð¿ÑÑÐ¶ÐµÐ½Ð¸Ð¹ Ð¾Ñ 4,2 Ðï­4,8Ð, Ð¿ÑÐ¸ ÑÐ¾ÐºÐ°Ñ Ð¾Ñ 0,2 Ð¼Ð Ð´Ð¾ 1 Ð¼Ð. Ð ÐµÐ·ÑÐ»ÑÑÐ°ÑÑ Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ð¹ Ð±ÑÐ»Ð¸ Ð¿ÑÐ¾Ð°Ð½Ð°Ð»Ð¸Ð·Ð¸ÑÐ¾Ð²Ð°Ð½Ñ, Ñ ÑÐµÐ»ÑÑ Ð²ÑÑÐ²Ð»ÐµÐ½Ð¸Ñ ÑÐµÐ¶Ð¸Ð¼Ð¾Ð², Ð¿ÑÐ¸ ÐºÐ¾ÑÐ¾ÑÑÑ Ð¿ÑÐ¾Ð¸ÑÑÐ¾Ð´Ð¸Ñ Ð°ÐºÑÐ¸Ð²Ð°ÑÐ¸Ñ Ð¼Ð°ÑÐµÑÐ¸Ð°Ð»Ð°, Ð° ÑÐ°ÐºÐ¶Ðµ Ð¾Ð¿ÑÐµÐ´ÐµÐ»ÐµÐ½Ð¸Ñ Ð²Ð»Ð¸ÑÐ½Ð¸Ñ Ð¿Ð¾ÐºÑÑÑÐ¸Ñ Ð¸ Ð»ÐµÐ³Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ñ Ð½Ð° Ð°ÐºÑÐ¸Ð²Ð°ÑÐ¸Ñ. Ð ÑÐµÐ·ÑÐ»ÑÑÐ°ÑÐµ Ð´Ð°Ð½Ð½Ð¾Ð³Ð¾ Ð°Ð½Ð°Ð»Ð¸Ð·Ð° Ð±ÑÐ»Ð¸ Ð¾Ð¿ÑÐµÐ´ÐµÐ»ÐµÐ½Ñ Ð·Ð½Ð°ÑÐµÐ½Ð¸Ñ ÑÐ¼ÐºÐ¾ÑÑÐµÐ¹, Ð° ÑÐ°ÐºÐ¶Ðµ ÑÑÐ¾ÑÐ¼ÑÐ»Ð¸ÑÐ¾Ð²Ð°Ð½ ÐºÑÐ¸ÑÐµÑÐ¸Ð¹ Ð¿Ð¾Ð»Ð½Ð¾Ð¹ Ð°ÐºÑÐ¸Ð²Ð°ÑÐ¸Ð¸ Ð¼Ð°ÑÐµÑÐ¸Ð°Ð»Ð°. Ð¡ Ð¸ÑÐ¿Ð¾Ð»ÑÐ·Ð¾Ð²Ð°Ð½Ð¸ÐµÐ¼ Ð´Ð°Ð½Ð½Ð¾Ð³Ð¾ ÐºÑÐ¸ÑÐµÑÐ¸Ñ Ð±ÑÐ»Ð¸ Ð²ÑÑÐ²Ð»ÐµÐ½Ñ Ð·Ð½Ð°ÑÐµÐ½Ð¸Ñ ÑÐ¾ÐºÐ¾Ð² Ð¸ Ð½Ð°Ð¿ÑÑÐ¶ÐµÐ½Ð¸Ð¹, Ð¿ÑÐ¸ ÐºÐ¾ÑÐ¾ÑÑÑ Ð¿ÑÐ¾Ð¸ÑÑÐ¾Ð´Ð¸Ñ Ð¿Ð¾Ð»Ð½Ð°Ñ Ð°ÐºÑÐ¸Ð²Ð°ÑÐ¸Ñ. Ð¢Ð°ÐºÐ¶Ðµ Ð±ÑÐ»Ð¾ Ð¾Ð¿ÑÐµÐ´ÐµÐ»ÐµÐ½Ð¾ Ð²Ð»Ð¸ÑÐ½Ð¸Ðµ Ð»ÐµÐ³Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ñ ÐºÐ°Ð»Ð¸ÐµÐ¼ Ð½Ð° Ð°ÐºÑÐ¸Ð²Ð°ÑÐ¸Ñ, Ð° ÑÐ°ÐºÐ¶Ðµ Ð·Ð°Ð²Ð¸ÑÐ¸Ð¼Ð¾ÑÑÑ Ð°ÐºÑÐ¸Ð²Ð°ÑÐ¸Ð¸ Ð¾Ñ ÑÐ¾Ð»ÑÐ¸Ð½Ñ Ð¿Ð¾ÐºÑÑÑÐ¸Ñ. Ð¡ÑÐ¾ÑÐ¼ÑÐ»Ð¸ÑÐ¾Ð²Ð°Ð½Ð½ÑÐ¹ ÐºÑÐ¸ÑÐµÑÐ¸Ð¹ Ð¼Ð¾Ð¶ÐµÑ Ð¿Ð¾Ð¼Ð¾ÑÑ Ð² Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ð¸ Ð²Ð»Ð¸ÑÐ½Ð¸Ñ ÑÐ°Ð·Ð»Ð¸ÑÐ½ÑÑ ÑÐ°ÐºÑÐ¾ÑÐ¾Ð² Ð½Ð° Ð°ÐºÑÐ¸Ð²Ð°ÑÐ¸Ñ Ð¼Ð°ÑÐµÑÐ¸Ð°Ð»Ð°.
description: In this work, we investigate lithium-rich layered transition metal oxides (Li-rich oxides). We analyzed the most promising ways to improve the characteristics of these cathode materials, such as alloying and coating. Based on this, was synthesized Li-rich oxide, doped with potassium, and tantalum oxide was coated by atomic layer deposition. The obtained cathode materials were investigated by the cyclic charging / discharging method in the voltage range from 4.2 V to 4.8 V, at currents from 0.2 mA to 1 mA. To identify the activation modes of the material, as well as to determine the effect of coating and alloying on activation analysis of experimental data was carried out. As a result, the values of the capacities were determined, and was formulated the criterion for the complete activation of the material. Using this criterion, were identified the values of currents and voltages at which full activation occurs. The effect of doping with potassium on activation was also determined, as well as the dependence of activation on the thickness of the coating. The formulated criterion can help in studying the influence of various factors on the activation of the material.