A forestry waste-derived lithium ion capacitor: Sustainable, high-power energy storage
In order to fill the demand for efficient and sustainable energy storage, hybrid systems combining batteries and supercapacitors are being explored. Lithium-ion capacitors (LICs), which leverage advances in electrical double-layer capacitors (EDLCs) and lithium-ion batteries (LIBs), are particularly...
| Authors: | , , |
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| Format: | article |
| Publication Date: | 2025 |
| Country: | España |
| Institution: | Universidad del País Vasco |
| Repository: | Addi. Archivo Digital para la Docencia y la Investigación |
| OAI Identifier: | oai:addi.ehu.eus:10810/76884 |
| Online Access: | http://hdl.handle.net/10810/76884 |
| Access Level: | Open access |
| Keyword: | lithium-ion capacitor hard carbon activated carbon biomass-derived carbon |
| Summary: | In order to fill the demand for efficient and sustainable energy storage, hybrid systems combining batteries and supercapacitors are being explored. Lithium-ion capacitors (LICs), which leverage advances in electrical double-layer capacitors (EDLCs) and lithium-ion batteries (LIBs), are particularly promising. In this study, we present a LIC using electrodes derived from Pinus Radiata biomass. The negative electrode, made of a hard carbon, achieves high capacity values (up to 112 mAh g⁻1 at 10C) without complex doping procedures, the use of expensive additives or complex processing. The positive capacitive electrode utilizes an activated carbon derived from the same hard carbon, which has a high specific surface area of 2399 m2 g−1. The proposed system exhibits an energy density of up to 105 Wh kg⁻1 at 700 W kg⁻1, retaining 60 % capacity after 10,000 cycles at 10C. By utilizing locally accessible biomass, this approach offers a cost-effective and sustainable alternative to conventional LICs, with further optimization potential. This research highlights the potential of biomass-derived materials in developing high-power, eco-friendly, and affordable energy storage systems. |
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