Изготовление композитных анодов Si/G для литий-ионных аккумуляторов: обзор

Авторы

A. Azaizia ¹ , М. В. Дорогов ¹

¹ Институт перспективных систем передачи данных, Университет ИТМО, Кронверкский пр., д. 49 лит. А, 197101, Санкт-Петербург, Россия

10.17586/2687-0568-2024-6-4-194-213

Rev. Adv. Mater. Technol., 2024, vol. 6, no. 4, pp. 194–213

Аннотация

Последние разработки в области композитных анодов из кремния и графена имеют большие перспективы в литий-ионных аккумуляторах благодаря преодолению ограничений их производительности. Кремний обладает высокой теоретической емкостью, однако во время циклирования происходит значительное изменение его объема. Графен известен превосходными механическими свойствами и электропроводностью, но у него малый потенциал для высокоэнергетических применений, однако он улучшает качества кремния. Благодаря объединению этих материалов такие композиты показывают впечатляющие результаты по производительности, структурной стабильности и сохранению емкости, что открывает возможности для разработки технологий хранения энергии нового поколения. Создание высокопроизводительных композитов стало проще благодаря достижениям в масштабируемых процессах синтеза, таких как золь-гель синтез, химическое осаждение из паровой фазы, методы самосборки и метод Хаммера. В обзоре рассмотрены последние разработки и нерешенные вопросы в литий-ионных аккумуляторах с акцентом на перспективные аноды на основе кремния, углеродные композиты и методы получения и исследования кремниевых анодов. Эти вопросы имеют решающее значение для удовлетворения потребностей современных устройств с высокой емкостью и ускорения внедрения композитов в системы хранения энергии нового поколения.

Ключевые слова

литий-ионные аккумуляторы; аноды на основе кремния; системы высокой емкости для хранения энергии; стабильность циклирования

Финансирование

RF Ministry of Science and Higher Education: 075-15-2021-1349

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