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<article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:ali="http://www.niso.org/schemas/ali/1.0/" article-type="research-article" dtd-version="1.2" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">RUDN Journal of Engineering Research</journal-id><journal-title-group><journal-title xml:lang="en">RUDN Journal of Engineering Research</journal-title><trans-title-group xml:lang="ru"><trans-title>Вестник Российского университета дружбы народов. Серия: Инженерные исследования</trans-title></trans-title-group></journal-title-group><issn publication-format="print">2312-8143</issn><issn publication-format="electronic">2312-8151</issn><publisher><publisher-name xml:lang="en">Peoples’ Friendship University of Russia named after Patrice Lumumba (RUDN University)</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">49745</article-id><article-id pub-id-type="doi">10.22363/2312-8143-2026-27-1-7-14</article-id><article-id pub-id-type="edn">GUXRGV</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>Articles</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>Статьи</subject></subj-group><subj-group subj-group-type="article-type"><subject>Research Article</subject></subj-group></article-categories><title-group><article-title xml:lang="en">Visualization of the Agglomeration Processof Copper Particles Used in the Manufacture of Current-Carrying Cellsof Lithium-Ion Batteries</article-title><trans-title-group xml:lang="ru"><trans-title>Визуализация процесса агломерации частиц меди, используемых при изготовлении токосъемных элементов литий-ионных аккумуляторов</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0004-1841-5922</contrib-id><name-alternatives><name xml:lang="en"><surname>Mityagin</surname><given-names>Daniil O.</given-names></name><name xml:lang="ru"><surname>Митягин</surname><given-names>Даниил Олегович</given-names></name></name-alternatives><bio xml:lang="en"><p>Postgraduate student of the Department of Nanotechnology and Microsystems Engineering, Engineering Academy, RUDN University; Senior Lecturer at the Department of Physics and Technical Mechanics at the Institute of Applied Informatics and Industrial Programming of the Moscow Institute of Radio Engineering, Electronics and Automation</p></bio><bio xml:lang="ru"><p>аспирант кафедры нанотехнологий и микросистемной техники, инженерная академия, Российский университет дружбы народов; старший преподаватель кафедры физики и технической механики Института прикладной информатики и индустриального программирования МИРЭА</p></bio><email>mityagin.danya@gmail.com</email><xref ref-type="aff" rid="aff1"/><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-6046-3400</contrib-id><contrib-id contrib-id-type="spin">9854-4380</contrib-id><name-alternatives><name xml:lang="en"><surname>Koronnov</surname><given-names>Alexey A.</given-names></name><name xml:lang="ru"><surname>Короннов</surname><given-names>Алексей Алексеевич</given-names></name></name-alternatives><bio xml:lang="ru"><p>кандидат технических наук, доцент кафедры нанотехнологий и микросистемной техники, инженерная академия</p></bio><email>koronnov@inbox.ru</email><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-9089-1411</contrib-id><contrib-id contrib-id-type="spin">9696-6864</contrib-id><name-alternatives><name xml:lang="en"><surname>Agasieva</surname><given-names>Svetlana V.</given-names></name><name xml:lang="ru"><surname>Агасиева</surname><given-names>Светлана Викторовна</given-names></name></name-alternatives><bio xml:lang="ru"><p>кандидат технических наук, доцент кафедры нанотехнологий и микросистемной техники, инженерная академия</p></bio><email>agasieva-sv@rudn.ru</email><xref ref-type="aff" rid="aff2"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">MIREA - Russian Technological University</institution></aff><aff><institution xml:lang="ru">МИРЭА - Российский технологический университет</institution></aff></aff-alternatives><aff-alternatives id="aff2"><aff><institution xml:lang="en">RUDN University</institution></aff><aff><institution xml:lang="ru">Российский университет дружбы народов</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2026-04-13" publication-format="electronic"><day>13</day><month>04</month><year>2026</year></pub-date><volume>27</volume><issue>1</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>7</fpage><lpage>14</lpage><history><date date-type="received" iso-8601-date="2026-04-13"><day>13</day><month>04</month><year>2026</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2026, Mityagin D.O., Koronnov A.A., Agasieva S.V.</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2026, Митягин Д.О., Короннов А.А., Агасиева С.В.</copyright-statement><copyright-year>2026</copyright-year><copyright-holder xml:lang="en">Mityagin D.O., Koronnov A.A., Agasieva S.V.</copyright-holder><copyright-holder xml:lang="ru">Митягин Д.О., Короннов А.А., Агасиева С.В.</copyright-holder><ali:free_to_read xmlns:ali="http://www.niso.org/schemas/ali/1.0/"/><license><ali:license_ref xmlns:ali="http://www.niso.org/schemas/ali/1.0/">https://creativecommons.org/licenses/by-nc/4.0</ali:license_ref></license></permissions><self-uri xlink:href="https://journals.rudn.ru/engineering-researches/article/view/49745">https://journals.rudn.ru/engineering-researches/article/view/49745</self-uri><abstract xml:lang="en"><p>The present study aims to conduct a comparative analysis of dispersion media used for the synthesis and storage of copper nanoparticles derived from copper formate, and to evaluate their suitability for application in current collectors. Particle characteristics in two media, namely ethyl alcohol and a mixture of alcohol and ethylene glycol, were investigated using dynamic light scattering, rheological analysis, and refractometry. The results demonstrate that the combined solvent system produces nanoparticles with a smaller average diameter (56.7 nm compared to 107.1 nm in pure alcohol) and a narrower size distribution, with 83.4% of particles falling within the 64-128 nm range. To visualise the data, particle size histograms were constructed, and the distributions were approximated using normal and Pearson distribution models. Experimental findings further indicate that the rate of particle agglomeration in the alcohol - ethylene glycol medium is approximately two times lower than in pure alcohol. On the basis of these results, the alcohol - ethylene glycol mixture can be recommended as a stabilising dispersion medium for the long-term storage of copper nanodispersions intended for use in current collector applications.</p></abstract><trans-abstract xml:lang="ru"><p>Цель исследования - сравнительный анализ дисперсионных сред для синтеза и хранения наночастиц меди, получаемых из формиата меди, с последующей оценкой их пригодности для использования в токосъемниках. Посредством применения методов динамического светорассеяния, реологии и рефрактометрии изучены характеристики частиц в средах «этиловый спирт» и «спирт + этиленгликоль». Показано, что использование комбинированной среды позволяет получать частицы с меньшим средним размером (56,7 нм против 107,1 нм) и более узким распределением (83,4 % частиц в диапазоне 64-128 нм). Для визуализации данных построены гистограммы и аппроксимированы законы распределения (нормальное и Пирсона). Экспериментально установлено, что скорость агломерации частиц в среде «спирт + этиленгликоль»в 2 раза ниже, чем в чистом спирте. На основании результатов сделан вывод о целесообразности применения смеси спирта с этиленгликолем в качестве стабилизирующей среды для долговременного хранения медной нанодисперсии.</p></trans-abstract><kwd-group xml:lang="en"><kwd>lithium-ion battery</kwd><kwd>current collectors</kwd><kwd>copper nanoparticle dispersion</kwd><kwd>agglomeration</kwd><kwd>dynamic light scattering</kwd><kwd>normal distribution</kwd><kwd>Pearson distribution</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>системы накопления энергии</kwd><kwd>токосъемники</kwd><kwd>нанодисперсия меди</kwd><kwd>динамическое светорассеяние</kwd><kwd>нормальное распределение</kwd><kwd>распределение Пирсона</kwd><kwd>регрессия</kwd></kwd-group><funding-group/></article-meta><fn-group/></front><body></body><back><ref-list><ref id="B1"><label>1.</label><citation-alternatives><mixed-citation xml:lang="en">Monakov Y, Tarasov A, Ivannikov A, Murzintsev A, Shutenko N. 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