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Pekka Tynjälä

University of Oulu

SCHOLARLY PAPERS

2

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125

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Scholarly Papers (2)

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1.

Positron Quantum Probe Diagnosis at the Cathode/Graphite Interface in a Co-Free Ni-Based Cathode to Optimize Li-Ion Mobility

Number of pages: 20 Posted: 25 Jan 2025 Last Revised: 04 Dec 2025
Rafael Ferragut, Xin Li, Meiying Zheng, Matías Bayo, Maik Butterling, Andrea Di Feo, Alberto Galanti, E. Hirschmann, Ekaterina Laakso, Petteri Laine, Ulla Lassi, Maciej Oskar Liedke, Pekka Tynjälä, Andreas Wagner, Matteo Vicini and Bernardo Barbiellini
affiliation not provided to SSRN, LUT University, Polytechnic University of Milan, Polytechnic University of Milan, Helmholtz-Zentrum Dresden-Rossendorf (HZDR), LUT University, Polytechnic University of Milan, Helmholtz-Zentrum Dresden-Rossendorf (HZDR), LUT University, University of Oulu, University of Oulu, Helmholtz-Zentrum Dresden-Rossendorf (HZDR), University of Oulu, Helmholtz-Zentrum Dresden-Rossendorf (HZDR), Polytechnic University of Milan and LUT University
Downloads 101 (684,672)

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Lithium-ion batteries, Ni based cathode, Co-free cathode, Positron annihilation spectroscopy

2.

Column leaching process for producing high-purity nickel sulfate solution for battery industry

Number of pages: 14 Posted: 31 Oct 2025
Pekka Tynjälä and Ulla Lassi
University of Oulu and University of Oulu
Downloads 24 (1,399,036)

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Leaching, bulk metal, cathode, nickel, sulfuric acid, hydrogen peroxide