https://diode.zone/videos/watch/8749edd0-65c0-4afa-b7d7-2ccd0fcfc590 Research and development of materials for Li-ion batteries and hydrogen energy at the Institute of Solid State Physics, University of Latvia presenter: G. Bajars research group: J. Hodakovska, J. Kleperis, K. Kaprans, A. Knoks, P. Lesnicenoks, G. Kucinskis Institute of Solid State Physics, University of Latvia (ISSP UL) Abstract: ISSP UL is an internationally recognized leading materials research centre in Latvia and Baltics. Research on material application for energy harvesting and storage is among the main research topics of the institute. Research priorities in battery materials and technologies includes: (1) novel electrode materials for Li-ion and Na-ion batteries; (2) ageing of Li-ion materials and cells; (3) fundamental research of mass transport in ionic and mixed ionic-electronic materials. Investigated electrode materials include LiFePO4, mixed Li / Na manganese phosphates for cathode and graphene oxide, Fe2O3, TiO2, composite materials for anode. Our recent studies have been focused on electrochemical properties of LiFePO4 cathode for Li-ion batteries as well as NCM-based commercial cells. We have determined a correlation between material ageing and the overvoltage and thus internal resistance. Ageing of commercial Li-ion battery cells was also studied, finding that the temperature where the longest service life is observed shifts to higher temperatures with increasing rate of charging. Other recent activities on research of materials and technologies for hydrogen applications include: • explaining hydrogen technology and economics to students, politicians, and entrepreneurs; • research of electrode materials for electrocatalytic exhaust CO2 reduction to useful products; • research for stationary and mobile applications for electricity and heat production. Acknowledgement: Research project «Cycle life prediction of lithium-ion battery electrodes and cells, utilizing current-voltage response measurements», Agreement No: Nr. lzp-2020/1-0425, funded by Latvian Council of Science. Biography Gunars Bajars, Dr.chem. (h-index=7, total citations – 543, ORCID ID: 0000-0001-8066- 9633) is a Senior Researcher at the Institute of Solid State Physics, University of Latvia (ISSP UL), Laboratory of Materials for Energy Harvesting and Storage. He received his doctoral degree from Latvian Academy of Science in 1992. The main research areas are chemistry and physics of materials, electrochemistry, solid state ionics, electrical and optical properties of materials, electrochromic phenomena and electrochemical storage devices. During last ten years, G. Bajars is working in the field of preparation and characterization of materials for lithium and sodium ion batteries. He was a head of Solid State Ionics laboratory from 2014 to 2018 and a member of Scientific Council of ISSP UL from 2012 to 2021. Gunars Bajars is a member of International Societies of Electrochemistry and Solid-State Ionics, national expert in European Commission Batteries Europe Platform WG3 Advanced Materials, as well as an expert for EC Innovation Fund and Horizon Europe research projects in the field of energy storage. The technological development for depositing LiFePO4 thin film coatings to use them on batteries and accumulators in portable electrical appliances and microelectronics was ranked among Top 10 scientific achievements in 2010 in Latvia. During the time period of 1999-2001 he has been a rector of Vidzeme University of Applied Sciences. Wed, 21 Oct 2026 08:54:51 GMT https://validator.w3.org/feed/docs/rss2.html PeerTube - https://diode.zone https://diode.zone/lazy-static/avatars/f8052465-9d60-4b32-92d3-0f4304b24ca6.png https://diode.zone/videos/watch/8749edd0-65c0-4afa-b7d7-2ccd0fcfc590 All rights reserved, unless otherwise specified in the terms specified at https://diode.zone/about and potential licenses granted by each content's rightholder.