Energy Materials & Interfaces (EMI)
The EMI group research themes include:
- Advanced materials and technologies for efficient electrochemical energy conversion and storage, particularly batteries and electrochemical ammonia synthesis
- Mechanistic understandings of electrochemical energy materials & interfaces through correlative and advanced operando and ex situ characterization (cryo-EM, in-situ TEM, synchrotron and neutron-based spectroscopy, etc.)
- Battery ageing & failure analysis, and state estimation & lifetime prediction with advanced models
- Advanced materials and technologies for efficient electrochemical energy conversion and storage, particularly batteries and electrochemical ammonia synthesis
- Mechanistic understandings of electrochemical energy materials & interfaces through correlative and advanced operando and ex situ characterization (cryo-EM, in-situ TEM, synchrotron and neutron-based spectroscopy, etc.)
- Battery ageing & failure analysis, and state estimation & lifetime prediction with advanced models
Latest publications
Electrothermal performance in electrically heating textiles
Liza Helen Kuttappassery, Janne Halme
2026
Materials Research Express
Influence of deposition temperature and thickness of ALD-TiO2 on planar perovskite solar cell performance
Syeda Qudsia, Alexander Weiss, Saara Sirkiä, Fuzeng Wang, Emil Rosqvist, Teresa De Los Arcos, Christian Weinberger, Janne Halme, Marianna Kemell, Jan Henrik Smått
2026
Applied Surface Science
Advancing cryogenic electron microscopy towards the mechanistic understanding of metal electrodes and interphases
Yaolin Xu, Kang Dong, Zdravko Kochovski, Qingping Wu, Yan Lu
2026
EES Batteries
Degradation and Failure Mechanisms of Lithium/LiNixCoyMn1-x-yO2 Batteries
Jia Guo, Pengwei Li, Francesco Piccolo, Yulin Jie, Haojun Jia, Ruiguo Cao, Shuhong Jiao, Philipp Adelhelm, Yaolin Xu
2025
ACS Energy Letters
Degradation mechanisms of LiNi0.5Mn0.3Co0.2O2/graphite battery in real-life driving scenarios
Jia Guo, Yaolin Xu, Yanchen Liu, Pengwei Li, Yunhong Che, Yaqi Li, Kjeld Pedersen, Götz Schuck, Peter Kjær Kristensen, Volodymyr Baran, Yanan Sun, Philipp Adelhelm, Daniel Ioan Stroe
2025
Energy Storage Materials
Enhancing the Performance and Photostability of Perovskite Solar Cells with a Multifunctional Light-Management Composite
Seyede Maryam Mousavi, Mostafa Othman, Fanxing Zou, Noora Lamminen, Girish Tewari, Hossein Baniasadi, Pedro Silva, Yujiao Dong, Janne Halme, Aïcha Hessler-Wyser, Christian M. Wolff, Paola Vivo, Muhammad Imran Asghar, Jaana Vapaavuori
2025
Small Science
Can Electrochemical Impedance Spectroscopy be Replaced by Direct Current Techniques in Battery Diagnosis?
Jia Guo, Yaolin Xu, Pengwei Li, Kjeld Pedersen, Miran Gaberšček, Daniel Ioan Stroe
2024
ChemPhysChem
Mechanistic Insights and Technical Challenges in Sulfur-Based Batteries : A Comprehensive In Situ/Operando Monitoring Toolbox
Jing Yu, Ivan Pinto-Huguet, Chao Yue Zhang, Yingtang Zhou, Yaolin Xu, Alen Vizintin, Juan Jesús Velasco-Vélez, Xueqiang Qi, Xiaobo Pan, Gozde Oney, Annabel Olgo, Katharina Märker, Leonardo M. Da Silva, Yufeng Luo, Yan Lu, Chen Huang, Eneli Härk, Joe Fleming, Pascale Chenevier, Andreu Cabot, Yunfei Bai, Marc Botifoll, Ashley P. Black, Qi An, Tazdin Amietszajew, Jordi Arbiol
2024
ACS Energy Letters
Research group members
News
Future makers research batteries, cryptography and plastic recycling
The Technology Industries of Finland Centennial Foundation awarded 3.5 million euros in research funding to eight projects, five from Aalto University.
Prof. Yaolin Xu’s battery research awarded prestigious energy storage prize
Track record and future potential in building better energy storage solutions landed Assistant Professor Xu the Energy Storage Materials Young Scientist Award.