Enabling the Electrochemical Performance of Maricite-NaMnPO4 and Maricite-NaFePO4 Cathode Materials in Sodium-Ion Batteries

电化学 材料科学 阴极 球磨机 化学工程 涂层 扩散 粒径 纳米技术 复合材料 电极 化学 物理化学 热力学 物理 工程类
作者
Ijaz Ul Mohsin,Luca Schneider,Yu Zheng,Wenqing Cai,Carlos Ziebert
出处
期刊:International journal of electrochemistry [Hindawi Publishing Corporation]
卷期号:2023: 1-9 被引量:4
标识
DOI:10.1155/2023/6054452
摘要

NaMnPO4 and NaFePO4, polyanion cathode materials, exist in two different phases maricite/natrophilite and maricite/olivine, respectively. Both natrophilite NaMnPO4 and olivine NaFePO4 are electrochemically active and possess a one-dimensional tunnel for sodium-ion migration; however, these two phases are thermodynamically unstable. Therefore, they can be synthesized through an electrochemical route. On the contrary, maricite (m)-NaMnPO4 and maricite (m)-NaFePO4 are thermodynamically stable forms but have a huge activation energy of their diffusion pathways for sodium extraction and insertion in the crystal structure, which hinders electrochemical reactions. Therefore, the electrochemical behaviour of commercial m-NaMnPO4 and m-NaFePO4 has been studied to find a way for enabling them electrochemically. Ball milling and thermal/mechanical carbon coating are employed to reduce the particle size to enhance the electrochemical performance and shorten the diffusion pathway. Moreover, ball milling leads to defects and partial phase transformation. The electrochemical performance of milled-coated NaMnPO4 and NaFePO4 has been thoroughly investigated and compared. The phase transition of NaFePO4 is revealed by a differential scanning calorimeter. As a result, the achievable capacities of both cathode materials are significantly enhanced up to ∼50 mAh.g−1 via the particle size reduction as well as by carbon coating. However, the side reactions and agglomeration problems in such materials need to be minimized and must be considered to enable them for applications.
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
呜呜啦啦完成签到 ,获得积分10
1秒前
大个应助Molly采纳,获得10
1秒前
爱听歌的新烟完成签到,获得积分10
1秒前
犇骉发布了新的文献求助10
1秒前
大美女发布了新的文献求助10
2秒前
量子星尘发布了新的文献求助10
2秒前
3秒前
刘宇完成签到,获得积分20
3秒前
SYLH应助17采纳,获得10
3秒前
顾矜应助丶夜落情泪采纳,获得30
5秒前
6秒前
6秒前
zz完成签到,获得积分20
6秒前
打打应助ZL采纳,获得10
6秒前
6秒前
7秒前
明亮无颜发布了新的文献求助10
8秒前
XWT完成签到,获得积分10
8秒前
9秒前
出门见喜发布了新的文献求助10
9秒前
顾矜应助勤劳的音响采纳,获得10
9秒前
王赞应助机灵的茹妖采纳,获得10
10秒前
Liu完成签到,获得积分10
10秒前
無期发布了新的文献求助20
11秒前
牛马发布了新的文献求助10
11秒前
香蕉觅云应助xmx采纳,获得10
12秒前
XWT发布了新的文献求助10
12秒前
13秒前
JamesPei应助BKEL采纳,获得10
13秒前
14秒前
FashionBoy应助欣慰的乌冬面采纳,获得30
14秒前
14秒前
只只发布了新的文献求助10
15秒前
15秒前
ding应助naturecandy采纳,获得10
16秒前
优雅芷波完成签到,获得积分10
18秒前
xiongyue发布了新的文献求助10
18秒前
FashionBoy应助出门见喜采纳,获得10
18秒前
rubyyoyo发布了新的文献求助10
18秒前
19秒前
高分求助中
A new approach to the extrapolation of accelerated life test data 1000
Picture Books with Same-sex Parented Families: Unintentional Censorship 700
ACSM’s Guidelines for Exercise Testing and Prescription, 12th edition 500
Nucleophilic substitution in azasydnone-modified dinitroanisoles 500
不知道标题是什么 500
Indomethacinのヒトにおける経皮吸収 400
Effective Learning and Mental Wellbeing 400
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 3975900
求助须知:如何正确求助?哪些是违规求助? 3520207
关于积分的说明 11201602
捐赠科研通 3256663
什么是DOI,文献DOI怎么找? 1798403
邀请新用户注册赠送积分活动 877564
科研通“疑难数据库(出版商)”最低求助积分说明 806430