Výsledky vyhledávání - "Alexander Hoefling"

Classification of Heat Evolution Terms in Li-Ion Batteries Regarding the OCV Hysteresis in a Li- and Mn-Rich NCM Cathode Material in Comparison to NCA

Autor: Franziska Friedrich, Tanja Zünd, Alexander Hoefling, Jens Tübke, Hubert A. Gasteiger

Publikováno v: Journal of The Electrochemical Society, 169 (4), Art. Nr.: 040547

We investigate the heat release of Li- and Mn-rich NCM (LMR-NCM) and NCA half-cells during cycling at different C-rates and quantify the individual contributions to the overall heat flow using a combination of isothermal micro-calorimetry and electro

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cd7618b1cac8d1ebb4d17c4018e65145
https://publikationen.bibliothek.kit.edu/1000146733/148815707

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Enabling High-Rate and Safe Lithium Ion-Sulfur Batteries by Effective Combination of Sulfur-Copolymer Cathode and Hard-Carbon Anode

Autor: Minha Yee, Young Joo Lee, Dan-Thien Nguyen, Patrick Theato, Alexander Hoefling, Seung-Wan Song, Giang Thi Huong Nguyen

Publikováno v: ChemSusChem. 12:480-486

Fabrication and high-rate performance of a safe lithium ion-sulfur battery (LISB) with sulfur-copolymer [poly(S-co-divinylbenzene (DVB)] cathode having a sulfur content higher than 90 wt %, a carbon-fiber interlayer, and a prelithiated hard-carbon (L

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6b0aba96b47b6f5b5b657af574031d3b
https://doi.org/10.1002/cssc.201802430

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A mismatch electrical conductivity skeleton enables dendrite–free and high stability lithium metal anode

Autor: Yi Wang, Xiaogang Zhang, Laifa Shen, Shan Fang, Guk-Tae Kim, Peter A. van Aken, Alexander Hoefling, Stefano Passerini

The lithium metal anode is regarded as ideal for high-energy rechargeable batteries. Unfortunately, the uncontrolled lithium dendritic growth and the infinite volume expansion upon cycling result in low Coulombic efficiency, fast capacity decay and s

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a388f1b89d145c990f9a65948ffb1a14
http://hdl.handle.net/11573/1588435

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Implications of the Heat Generation of LMR-NCM on the Thermal Behavior of Large-Format Lithium-Ion Batteries

Autor: Alexander Kunz, Marco Steinhardt, Tanja Zünd, Jens Tübke, Ludwig Kraft, Alexander Hoefling, Andreas Jossen

Publikováno v: Journal of the Electrochemical Society, 168 (5), Art. Nr.: 053505

Lithium- and manganese-rich NCM (LMR-NCM) cathode active materials exhibit a pronounced energy inefficiency during charge and discharge that results in a strong heat generation during operation. The implications of such a heat generation are investig

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::85713148914abfed5ba59ea4620faf06

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Mechanistic Insights into the Lithiation and Delithiation of Iron-Doped Zinc Oxide: The Nucleation Site Model

Autor: Stefano Passerini, Jens Tübke, Alexander Hoefling, Jakob Asenbauer, Sylvio Indris, Dominic Bresser

Publikováno v: ACS applied materialsinterfaces. 12(7)

The detailed mechanistic understanding of the electrochemical reactions occurring in lithium-ion battery electrodes is fundamental for their further improvement. Conversion/alloying materials (CAMs), such as Zn

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ba38dcd27525c2aead4b75e825f64766
https://pubmed.ncbi.nlm.nih.gov/31985202

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Mechanism for the Stable Performance of Sulfur-Copolymer Cathode in Lithium–Sulfur Battery Studied by Solid-State NMR Spectroscopy

Autor: Seung-Wan Song, Daniel Sebastiani, Young Joo Lee, Dan-Thien Nguyen, Pouya Partovi-Azar, Patrick Theato, Alexander Hoefling

Publikováno v: Chemistry of Materials. 30:2915-2923

Rechargeable lithium–sulfur (Li–S) batteries have drawn significant attention as next-generation energy storage systems. Sulfur-copolymers are promising alternative cathode materials to elemental sulfur in Li–S batteries as they provide high re

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::116c8e11c35e4b32dfed1139e23be2c0
https://doi.org/10.1021/acs.chemmater.7b05105

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A sulfur–eugenol allyl ether copolymer: a material synthesized via inverse vulcanization from renewable resources and its application in Li–S batteries

Autor: Young Joo Lee, Alexander Hoefling, Patrick Theato, Dan-Thien Nguyen, Seung-Wan Song

Publikováno v: Materials Chemistry Frontiers. 1:1818-1822

The demand for eco-friendly and renewable resources has dramatically increased in scientific and technological areas including energy storage systems and production of new functional materials. Sulfur copolymers with high sulfur contents of up to 90

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::e591818134fde4a5b3128b086c415ad1
https://doi.org/10.1039/c7qm00083a

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