Department of Applied Physics

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
EEI

Latest publications

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
More information on our research in the Aalto research portal.
Research portal

News

Four men in formal attire, each in different settings. One wears a turtleneck, others wear suits with ties.
Research & Art Published:

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.
Photo of prof. Yaolin Xu by Mikko Raskinen/Aalto University.
Awards and Recognition Published:

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.
Photo of prof. Yaolin Xu by Mikko Raskinen/Aalto University.
Appointments, Research & Art Published:

Prof. Yaolin Xu combines physics and chemistry for better batteries

Newly appointed Assistant Professor Xu looks to build up his lab and team at the Department of Applied Physics to pursue better batteries for a sustainable future in energy storage.
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