Shalaeva Viktoriya Sergeevna RussiaSaratov Saratov State University, 83, Astrakhanskaya St., Saratov, 410012студентvika.iwannikowa2015@yandex.ru Author's articles Influence porous structure of the polymer membrane based on fluoropolymer F-42 on the process of oxygen ionization in the mock-up of lead-acid batteries