Study on the thermal reduction effect of organic components in spent ternary lithium battery cathode active materials

阴极 材料科学 X射线光电子能谱 化学工程 炭黑 煅烧 无机化学 化学 复合材料 有机化学 催化作用 天然橡胶 物理化学 工程类
作者
Haidi Jiang,Zhaohui Li,Weining Xie,Guangwen Zhang,Zhaoyi Yu,Qichang Lu,Yaqun He
出处
期刊:Waste Management [Elsevier BV]
卷期号:148: 33-42 被引量:17
标识
DOI:10.1016/j.wasman.2022.05.011
摘要

To improve the adhesion between cathode materials and current collector, and increase the electronic conductivity among electroactive substances, a certain proportion of conductive agents (acetylene black) and agglomerant (PVDF) are usually added in the battery manufacturing process. However, these conductive agents have negative effects on the recovery of cathode materials by pyrolysis or calcination. Recognizing this issue, a method based on the concept of "treating spent with spent" was developed in this paper. Organic matters contained in cathode active materials functioned as the reduction reagents, which can reduce the valence state of transition metals, resulting in the breakdown of the strong chemical bond and the stable layered structure of cathode materials. In this study, the thermal reduction effect of different organic components on cathode active materials was analyzed respectively to evaluate the reduction function of each component. XRD, XPS and ICP-MS were used to compare and analyze changes of phase, element compound state and ion leaching efficiencies of different cathode materials before and after thermal reduction under different amounts of reducing agents. The results show that both PVDF and acetylene black reduced the high-valent metals to low-valent oxides or elemental substances, demonstrating their thermal reduction capabilities. Comparisons of the XRD, XPS analysis and ion leaching results of thermal reduced products suggest that acetylene black has a stronger thermal reduction ability than that of PVDF. The results also show that the reduction of the high nickel cathode material (NCM811) is easier than that of the low nickel cathode material (NCM111).
最长约 10秒,即可获得该文献文件

科研通智能强力驱动
Strongly Powered by AbleSci AI
更新
PDF的下载单位、IP信息已删除 (2025-6-4)

科研通是完全免费的文献互助平台,具备全网最快的应助速度,最高的求助完成率。 对每一个文献求助,科研通都将尽心尽力,给求助人一个满意的交代。
实时播报
科研通AI2S应助科研通管家采纳,获得10
刚刚
Owen应助科研通管家采纳,获得10
刚刚
乐乐应助科研通管家采纳,获得10
刚刚
科研通AI5应助科研通管家采纳,获得10
刚刚
YamDaamCaa应助科研通管家采纳,获得50
刚刚
科研通AI5应助科研通管家采纳,获得10
刚刚
科目三应助科研通管家采纳,获得10
1秒前
爆米花应助科研通管家采纳,获得10
1秒前
稳重淇完成签到 ,获得积分10
1秒前
1秒前
2秒前
3秒前
daaarrr完成签到,获得积分10
6秒前
非一发布了新的文献求助10
9秒前
9秒前
10秒前
11秒前
乐乐应助事在人为采纳,获得10
12秒前
13秒前
jisujun完成签到,获得积分20
13秒前
41应助momo采纳,获得10
14秒前
DijiaXu应助jszhoucl采纳,获得10
16秒前
热爱科研的小白鼠完成签到,获得积分10
16秒前
16秒前
爱穿毛袜完成签到,获得积分10
17秒前
大模型应助LJJ采纳,获得10
17秒前
spirit完成签到 ,获得积分10
18秒前
思源应助hhh采纳,获得10
18秒前
19秒前
正直的魔镜完成签到 ,获得积分10
20秒前
22秒前
KM比比发布了新的文献求助10
23秒前
如此完成签到,获得积分10
23秒前
qq完成签到 ,获得积分10
24秒前
qqq发布了新的文献求助10
25秒前
火星上鑫鹏完成签到,获得积分10
25秒前
事在人为发布了新的文献求助10
25秒前
沉默的婴发布了新的文献求助20
26秒前
杨涵完成签到 ,获得积分10
27秒前
ponysmile完成签到,获得积分20
28秒前
高分求助中
A new approach to the extrapolation of accelerated life test data 1000
ACSM’s Guidelines for Exercise Testing and Prescription, 12th edition 500
‘Unruly’ Children: Historical Fieldnotes and Learning Morality in a Taiwan Village (New Departures in Anthropology) 400
Indomethacinのヒトにおける経皮吸収 400
Phylogenetic study of the order Polydesmida (Myriapoda: Diplopoda) 370
基于可调谐半导体激光吸收光谱技术泄漏气体检测系统的研究 350
Robot-supported joining of reinforcement textiles with one-sided sewing heads 320
热门求助领域 (近24小时)
化学 材料科学 医学 生物 工程类 有机化学 生物化学 物理 内科学 纳米技术 计算机科学 化学工程 复合材料 遗传学 基因 物理化学 催化作用 冶金 细胞生物学 免疫学
热门帖子
关注 科研通微信公众号,转发送积分 3989334
求助须知:如何正确求助?哪些是违规求助? 3531428
关于积分的说明 11253936
捐赠科研通 3270119
什么是DOI,文献DOI怎么找? 1804887
邀请新用户注册赠送积分活动 882087
科研通“疑难数据库(出版商)”最低求助积分说明 809173