{"id":1042,"date":"2021-03-24T14:48:03","date_gmt":"2021-03-24T12:48:03","guid":{"rendered":"https:\/\/sites.uef.fi\/ppg\/?page_id=1042"},"modified":"2026-01-20T17:18:35","modified_gmt":"2026-01-20T15:18:35","slug":"li-ion-batteries","status":"publish","type":"page","link":"https:\/\/sites.uef.fi\/ppg\/research-topics\/li-ion-batteries\/","title":{"rendered":"Li-ion batteries"},"content":{"rendered":"\n<p><\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Porous silicon anodes for next-generation lithium-ion batteries<\/strong><\/h2>\n\n\n\n<p>We are developing porous silicon anode materials using various synthesis methods, including electrochemical etching, metal-assisted chemical etching (MACE), and metal reduction, to enhance the performance of lithium-ion batteries. Our research focuses on key strategies to enhance electrochemical performance:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Pore structure engineering<\/strong> \u2013 Tailoring pore size and porosity to accommodate silicon\u2019s volume expansion, improving structural stability and cycle life.<\/li>\n\n\n\n<li><strong>Surface functionalization<\/strong> \u2013 Enhancing electrical conductivity, stabilizing the solid electrolyte interphase (SEI), and ensuring long-term cycling stability.<\/li>\n\n\n\n<li><strong>High-silicon-content Si\/C composites<\/strong> \u2013 Developing silicon-carbon composites with high silicon loading to boost energy density while maintaining mechanical integrity.<\/li>\n\n\n\n<li><strong>Advanced characterization<\/strong> \u2013 Employing state-of-the-art techniques to investigate electrochemical mechanisms, degradation pathways, and material behavior under real-world conditions.<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"803\" height=\"271\" src=\"https:\/\/sites.uef.fi\/ppg\/wp-content\/uploads\/sites\/285\/2025\/03\/Picture1.png\" alt=\"\" class=\"wp-image-3435\" srcset=\"https:\/\/sites.uef.fi\/ppg\/wp-content\/uploads\/sites\/285\/2025\/03\/Picture1.png 803w, https:\/\/sites.uef.fi\/ppg\/wp-content\/uploads\/sites\/285\/2025\/03\/Picture1-300x101.png 300w, https:\/\/sites.uef.fi\/ppg\/wp-content\/uploads\/sites\/285\/2025\/03\/Picture1-768x259.png 768w\" sizes=\"auto, (max-width: 803px) 100vw, 803px\" \/><\/figure>\n\n\n\n<p>In the image, we showcase the use of agricultural waste\u2014barley husk\u2014as a sustainable silicon source to produce bio-based silicon. This approach reduces dependence on energy-intensive silicon production while advancing a circular economy. We collaborate with partners to conduct life cycle assessments, assessing the scalability, environmental impact, and sustainability of bio-silicon anodes for next-generation green energy storage solutions.<\/p>\n\n\n\n<p><\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Cathode materials and development for next-generation LIBs<\/strong><\/h2>\n\n\n\n<p>As energy demands continue to rise, the development of advanced cathode materials remains central to enabling safer batteries with higher energy densities and longer cycle life.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Cathode materials design and synthesis<\/strong> The group is dedicated to advancing cathode materials by designing and synthesizing a diverse portfolio of compounds\u2014including layered oxides, high-voltage spinels, and polyanion-based structures\u2014engineered for improved structural stability, enhanced safety, and long-term cycling performance. Strategies such as surface coating, elemental doping, composition tuning, and single-crystal engineering are employed to mitigate mechanical degradation and optimize cathode\u2013electrolyte interfacial stability. Advanced characterization techniques, including synchrotron-based X-ray probes, further elucidate structure\u2013property relationships, providing critical insights that drive the development of next-generation cathode materials.<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"573\" height=\"383\" src=\"https:\/\/sites.uef.fi\/ppg\/wp-content\/uploads\/sites\/285\/2025\/03\/Picture1-1.png\" alt=\"\" class=\"wp-image-3445\" srcset=\"https:\/\/sites.uef.fi\/ppg\/wp-content\/uploads\/sites\/285\/2025\/03\/Picture1-1.png 573w, https:\/\/sites.uef.fi\/ppg\/wp-content\/uploads\/sites\/285\/2025\/03\/Picture1-1-300x201.png 300w\" sizes=\"auto, (max-width: 573px) 100vw, 573px\" \/><\/figure>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Battery ageing and degradation mechanisms <\/strong>Battery ageing and degradation, including under extreme conditions, such as high temperatures, low temperatures, and fast charging, are studied by examining the structural and interfacial evolution of electrodes during cycling. The goal is to identify key failure mechanisms and guide the design of more stable materials and interfaces to enhance battery durability and safety.<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"505\" height=\"399\" src=\"https:\/\/sites.uef.fi\/ppg\/wp-content\/uploads\/sites\/285\/2025\/03\/Picture2.png\" alt=\"\" class=\"wp-image-3446\" srcset=\"https:\/\/sites.uef.fi\/ppg\/wp-content\/uploads\/sites\/285\/2025\/03\/Picture2.png 505w, https:\/\/sites.uef.fi\/ppg\/wp-content\/uploads\/sites\/285\/2025\/03\/Picture2-300x237.png 300w\" sizes=\"auto, (max-width: 505px) 100vw, 505px\" \/><\/figure>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Sustainable battery electrode processing<\/strong><strong> <\/strong>In pursuit of sustainable battery technologies, the team is developing aqueous-processable cathodes (e.g. Ni-rich cathodes) alongside fluorine-free binder systems to replace conventional toxic components such as PVDF and NMP. By optimizing processing parameters through controlled solution chemistry, the research enhances electrode compatibility and promotes efficient materials recovery, laying the groundwork for a circular battery economy.<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"770\" height=\"359\" src=\"https:\/\/sites.uef.fi\/ppg\/wp-content\/uploads\/sites\/285\/2025\/03\/Picture3.png\" alt=\"\" class=\"wp-image-3447\" srcset=\"https:\/\/sites.uef.fi\/ppg\/wp-content\/uploads\/sites\/285\/2025\/03\/Picture3.png 770w, https:\/\/sites.uef.fi\/ppg\/wp-content\/uploads\/sites\/285\/2025\/03\/Picture3-300x140.png 300w, https:\/\/sites.uef.fi\/ppg\/wp-content\/uploads\/sites\/285\/2025\/03\/Picture3-768x358.png 768w\" sizes=\"auto, (max-width: 770px) 100vw, 770px\" \/><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>Porous silicon anodes for next-generation lithium-ion batteries We are developing porous silicon anode materials using various synthesis methods, including electrochemical etching, metal-assisted chemical etching (MACE), and metal reduction, to enhance the performance of lithium-ion batteries. Our research focuses on key strategies to enhance electrochemical performance: In the image, we showcase the use of agricultural waste\u2014barley [&hellip;]<\/p>\n","protected":false},"author":508,"featured_media":0,"parent":249,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"class_list":["post-1042","page","type-page","status-publish","hentry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.1.1 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Li-ion batteries - Pharmaceutical Physics Group<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/sites.uef.fi\/ppg\/research-topics\/li-ion-batteries\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Li-ion batteries - Pharmaceutical Physics Group\" \/>\n<meta property=\"og:description\" content=\"Porous silicon anodes for next-generation lithium-ion batteries We are developing porous silicon anode materials using various synthesis methods, including electrochemical etching, metal-assisted chemical etching (MACE), and metal reduction, to enhance the performance of lithium-ion batteries. 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