3
views
0
recommends
+1 Recommend
0 collections
    0
    shares
      • Record: found
      • Abstract: found
      • Article: found
      Is Open Access

      Efficient and Stable Photoassisted Lithium-Ion Battery Enabled by Photocathode with Synergistically Boosted Carriers Dynamics

      research-article

      Read this article at

      Bookmark
          There is no author summary for this article yet. Authors can add summaries to their articles on ScienceOpen to make them more accessible to a non-specialist audience.

          Highlights

          • Developing a universal bulk heterojunction strategy to create oxygen vacancies by embedding laser-manufactured metal nanocrystals into the TiO 2 matrix.

          • Proposing a new mechanism based on plasmonic-induced hot electron injection and enhanced conductivity from Schottky contact-derived oxygen vacancies.

          • Establishing several benchmark values for the performance of TiO 2-based photocathodes in photoassisted lithium-ion batteries.

          Supplementary Information

          The online version contains supplementary material available at 10.1007/s40820-024-01570-7.

          Abstract

          Efficient and stable photocathodes with versatility are of significance in photoassisted lithium-ion batteries (PLIBs), while there is always a request on fast carrier transport in electrochemical active photocathodes. Present work proposes a general approach of creating bulk heterojunction to boost the carrier mobility of photocathodes by simply laser assisted embedding of plasmonic nanocrystals. When employed in PLIBs, it was found effective for synchronously enhanced photocharge separation and transport in light charging process. Additionally, experimental photon spectroscopy, finite difference time domain method simulation and theoretical analyses demonstrate that the improved carrier dynamics are driven by the plasmonic-induced hot electron injection from metal to TiO 2, as well as the enhanced conductivity in TiO 2 matrix due to the formation of oxygen vacancies after Schottky contact. Benefiting from these merits, several benchmark values in performance of TiO 2-based photocathode applied in PLIBs are set, including the capacity of 276 mAh g −1 at 0.2 A g −1 under illumination, photoconversion efficiency of 1.276% at 3 A g −1, less capacity and Columbic efficiency loss even through 200 cycles. These results exemplify the potential of the bulk heterojunction strategy in developing highly efficient and stable photoassisted energy storage systems.

          Supplementary Information

          The online version contains supplementary material available at 10.1007/s40820-024-01570-7.

          Related collections

          Most cited references65

          • Record: found
          • Abstract: not found
          • Article: not found

          Generalized Gradient Approximation Made Simple

            Bookmark
            • Record: found
            • Abstract: found
            • Article: not found

            From ultrasoft pseudopotentials to the projector augmented-wave method

            Physical Review B, 59(3), 1758-1775
              Bookmark
              • Record: found
              • Abstract: not found
              • Article: not found

              Special points for Brillouin-zone integrations

                Bookmark

                Author and article information

                Contributors
                heyibo@nwpu.edu.cn
                guopengfei@nwpu.edu.cn
                hongqiang.wang@nwpu.edu.cn
                Journal
                Nanomicro Lett
                Nanomicro Lett
                Nano-Micro Letters
                Springer Nature Singapore (Singapore )
                2311-6706
                2150-5551
                27 November 2024
                27 November 2024
                December 2025
                : 17
                : 74
                Affiliations
                [1 ]State Key Laboratory of Solidification Processing, Center for Nano Energy Materials, School of Materials Science and Engineering, Northwestern Polytechnical University and Shaanxi Joint Laboratory of Graphene (NPU), ( https://ror.org/024dcqa50) Xi’an, 710072 People’s Republic of China
                [2 ]GRID grid.440588.5, ISNI 0000 0001 0307 1240, State Key Laboratory of Solidification Processing, School of Materials Science and Engineering Department, , Northwestern Polytechnical University, ; Xi’an, 710072 People’s Republic of China
                [3 ]GRID grid.440588.5, ISNI 0000 0001 0307 1240, State Key Laboratory of Solidification Processing, Center of Advanced Lubrication and Seal Materials, School of Materials Science and Engineering, , Northwestern Polytechnical University, ; Xi’an, 710072 People’s Republic of China
                [4 ]Research and Development Institute of Northwestern Polytechnical University in Shenzhen, ( https://ror.org/01y0j0j86) Shenzhen, 518063 People’s Republic of China
                [5 ]Key Laboratory of Applied Surface and Colloid Chemistry, Shaanxi Key Laboratory for Advanced Energy Devices, Shaanxi Engineering Lab for Advanced Energy Technology, School of Materials Science and Engineering, National Ministry of Education, Shaanxi Normal University, ( https://ror.org/0170z8493) Xi’an, 710119 People’s Republic of China
                Article
                1570
                10.1007/s40820-024-01570-7
                11602903
                39601935
                59d0b99d-0ae2-45df-8cb4-eeff6a62eb67
                © The Author(s) 2024

                Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.

                History
                : 19 August 2024
                : 22 October 2024
                Categories
                Article
                Custom metadata
                © Shanghai Jiao Tong University 2025

                photoassisted lithium-ion batteries,bulk heterojunction,carrier dynamics,tio2 nanofiber,plasmonic metal nanocrystals

                Comments

                Comment on this article