Electrochemical properties of large-sized pouch-type lithium ion batteries with bio-inspired organic cathode materials
| Autor: | Sungbaek Cho, Jae-Seong Yeo, Dong-Ik Cheong, Eun-Ji Yoo, Sang-hyeon Ha |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Battery (electricity)
Materials science Renewable Energy Sustainability and the Environment Inorganic chemistry Energy Engineering and Power Technology chemistry.chemical_element 02 engineering and technology Electrolyte 010402 general chemistry 021001 nanoscience & nanotechnology Electrochemistry 01 natural sciences Cathode Lithium-ion battery 0104 chemical sciences Anode law.invention Tetraethylene glycol dimethyl ether chemistry.chemical_compound chemistry law Lithium Electrical and Electronic Engineering Physical and Theoretical Chemistry 0210 nano-technology |
| Zdroj: | Journal of Power Sources. 313:91-95 |
| ISSN: | 0378-7753 |
| DOI: | 10.1016/j.jpowsour.2016.02.065 |
| Popis: | To investigate the feasibility of scaling up bio-inspired organic materials as cathode materials in lithium ion batteries, large-sized pouch cells are successfully prepared via tape casting using lumichrome with an alloxazine structure and aqueous styrene butadiene rubber-carboxymethyl cellulose (SBR-CMC) binders. A battery module with a two-in-series, six-in-parallel (2S6P) configuration is also successfully fabricated and is able to power blue LEDs (850 mW). Lumichrome shows no structural changes during the fabrication processes used to produce the positive electrode. The large-sized pouch cells show two sets of cathodic and anodic peaks with average potentials of 2.58 V and 2.26 V vs. Li/Li + , respectively. The initial discharge capacities are 142 mAh g −1 and 148 mAh g −1 for ethylene carbonate-dimethyl carbonate (EC-DMC) and tetraethylene glycol dimethyl ether (TEGDME) electrolytes, respectively, similar to that of a coin cell (149 mAh g −1 ). The EC-DMC-injected pouch cells exhibit higher rate performance and cyclability than the TEGDME-injected ones. The TEGDME electrolyte is not suitable for lithium metal anodes because of electrolyte decomposition and subsequent cell swelling. |
| Databáze: | OpenAIRE |
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