Lenard Hanf

HANF, Dr. Lenard

MEET - Münster Electrochemical Energy Technology
Raum: C2.1.15
Wilhelm-Schickard-Straße 8
D-48149 Münster

Tel.: +49 251 83-36082
lenard.hanf@uni-muenster.de

Position: Postdoktorand

Bereich / Gruppe: Analytics and Environment

Dissertationsthema: Speciation of Dissolved Transition Metals in Lithium Ion Battery Electrolytes by Means of Capillary Electrophoresis

Artikel

Abke, Niklas M., Hanf, Lenard, Hendriks, Theodoor A., Kuratani, Kentaro, Tomonari, Takeuchi, Sakaebe, Hikari, Winter, Martin, Nowak, Sascha, und Wiemers-Meyer, Simon. 2025. „Direct Visualization of Aging Effects in Metal Sulfide-based All-Solid-State Battery Cathodes.“ präsentiert auf der SIMS 2025, Gießen, 07.09.2025 bis 09.09.2025.
Abke, Niklas M., Hanf, Lenard, Hendriks, Theodoor A., Winter, Martin, Nowak, Sascha, und Wiemers-Meyer, Simon. 2024. „What’s Cracking? Deep Investigation of aged Solid-State Electrolyte Lithium Sulfur Batteries via Time of Flight Secondary Ion Mass Spectrometry.“ präsentiert auf der ADVANCED BATTERY POWER, Münster.
Hanf, Lenard, Brüning, Kai, Winter, Martin, und Nowak, Sascha. 2023. „Front Cover - Method Development for the Investigation of Mn2+/3+, Cu2+, Co2+ and Ni2+ with Capillary Electrophoresis Hyphenated to Inductively Coupled Plasma – Mass Spectrometry.“ Electrophoresis 41 (1-2). doi: 10.1002/elps.202370011.
Hanf, Lenard, Brüning, Kai, Winter, Martin, und Nowak, Sascha. 2022. „Method Development for the Investigation of Mn2+/3+, Cu2+, Co2+ and Ni2+ with Capillary Electrophoresis Hyphenated to Inductively Coupled Plasma – Mass Spectrometry.“ Electrophoresis 44 (1-2): 89–95. doi: 10.1002/elps.202200139.
Hanf, L, Winter, M, und Nowak, S. 2021. „Why does aging occur in lithium ion batteries? Advancements in the quantification of transition metal species.“ Wiley Analytical Science Magazine 10.
Hanf, L, Winter, M, und Nowak, S. 2021. „Warum altern Lithium-Ionen-Batterien? - Entwicklungen zur Quantifizierung von Übergangsmetallspezies.“ GIT Labor-Fachzeitschrift 10: 17–19.
Hanf, L, Winter, M, und Nowak, S. 2020. „Investigation of Transition Metal Species in Lithium Ion Batteries by Means of CE/ICP-MS.“ präsentiert auf der 53. Jahrestagung der Deutschen Gesellschaft für Massenspektrometrie, DGMS, Münster.
Hanf, L, Henschel, J, Diehl, M, Winter, M, und Nowak, S. 2020. „Mn2+ or Mn3+? Investigating transition metal dissolution of manganese species in lithium ion battery electrolytes by capillary electrophoresis.“ Electrophoresis 41 (9): 697–704. doi: 10.1002/elps.201900443.
Hanf, L, Diehl, M, Kemper, L-S, Winter, M, und Nowak, S. 2020. „Cover Page - Investigating the oxidation state of Fe from LiFePO4-based lithium ion battery cathodes via capillary electrophoresis.“ Electrophoresis 41 (18-19). doi: 10.1002/elps.202070102.
Hanf, L, Diehl, M, Kemper, L-S, Winter, M, und Nowak, S. 2020. „Cover Page - Accessing copper oxidation states of dissolved negative electrode current collectors in lithium ion batteries.“ Electrophoresis 41 (18-19). doi: 10.1002/elps.202070102.
Hanf, L, Diehl, M, Kemper, L-S, Winter, M, und Nowak, S. 2020. „Accessing copper oxidation states of dissolved negative electrode current collectors in lithium ion batteries.“ Electrophoresis 41 (18-19): 1568–1575. doi: 10.1002/elps.202000155.
Hanf, L, Diehl, M, Kemper, L-S, Winter, M, und Nowak, S. 2020. „Investigating the oxidation state of Fe from LiFePO4-based lithium ion battery cathodes via capillary electrophoresis.“ Electrophoresis 41 (18-19): 1549–1556. doi: 10.1002/elps.202000097.
Hanf, L, Winter, M, und Nowak, S. 2019. „Investigation of Transition Metal Dissolution Mechanisms in Lithium Ion Batteries by Means of Capillary Electrophoresis.“ präsentiert auf der ANAKON 2019, Münster.
Hanf, LM. Leissing, und Winter, MNowak S. 2019. „Investigation of transition metal species in lithium ion battery electrolytes by means of CE/ICP-MS – A new approach to reveal the dissolution mechanism of transition metals from cathode materials.“ präsentiert auf der European Winter Conference on Plasma Spectrochemistry 2019, Pau.
Hanf, L, Wilken, A, Winter, M, und Nowak, S. 2018. „Investigation of Transition Metal-Based Cathode Materials – Speciation of Dissolved Mn2+/Mn3+ by Means of Capillary Electrophoresis.“ präsentiert auf der 10. Kraftwerk Batterie Fachtagung, Münster.
Hanf, L, Wilken, A, Winter, M, und Nowak, S. 2018. „QUANTIFICATION OF DISSOLVED MN2+/3+ IN LITHIUM ION BATTERY ELECTROLYTES BY MEANS OF CE/ICP-MS – A NEW APPROACH FOR THE INVESTIGATION OF TRANSITION METAL DISSOLUTION FROM CATHODE MATERIALS.“ präsentiert auf der 9th Nordic Conference on Plasma Spectrochemistry, Loen.
Hanf, L, Pyschik, M, Winter, M, und Nowak, S. 2017. „IDENTIFICATION AND QUANTIFICATION OF MN2+ AND MN3+ IN LITHIUM ION BATTERY ELECTROLYTES BY MEANS OF CAPILLARY ELECTROPHORESIS AND ULTRAVIOLET-VISIBLE LIGHT-DETECTION.“ präsentiert auf der 23rd International Symposium on Separation Sciences (ISSS 2017), Wien.
Hanf, L, Wentker, K, Winter, M, und Nowak, S. 2017. „Method Development for Trace Elemental Analysis of Manganese in Lithium Ion Battery Electrolytes by Means of Inductively Coupled Plasma-Sector Field-Mass Spectrometry (ICP SF MS).“ präsentiert auf der European Winter Conference on Plasma Spectrochemistry - EWCPS 2017, St. Anton.

Wissenschaftliche Vorträge

Hanf, Lenard; Winter, Martin; Nowak, Sascha 2020: “New insights into the capacity fading mechanisms of lithium ion batteries - Investigation of transition metal oxidation states in electrolytes by means of capillary electrophoresis”. 12. Kraftwerk Batterie Fachtagung, Münster, Deutschland, 25.03.2020.
Hanf, Lenard; Winter, Martin; Nowak, Sascha 2020: “Transition metal speciation in lithium ion battery electrolytes by means of capillary electrophoresis”. 30. Doktorandenseminar des AK Separation Science, Duisburg, Deutschland, 14.01.2020.
Vortmann-Westhoven, Britta; Kraft, Vadim; Lürenbaum, Constantin; Hanf, Lenard, Diehl; Marcel; Winter, Martin; Nowak, Sascha 2016: “Lithium Ion Batteries: Stoichiometric Characterization of Electrodes and Determination of Transition Metal Dissolution in Electrolytes using CE and IC”. 2nd Global IC User Meeting, Herisau, Schweiz, 29.09.2016.