Publication:
A Regular Biporous Model of the Cathode Active Layer Structure of a Lithium-Oxygen Battery. Calculation of Overall Characteristics of the Cathode Active Layer

Дата
2020
Авторы
Chirkov, Y. G.
Andreev, V. N.
Bogdanovskaya, V. A.
Korchagin, O. V.
Rostokin, V. I.
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Volume Title
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Научные группы
Организационные подразделения
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Организационная единица
Институт лазерных и плазменных технологий
Стратегическая цель Института ЛаПлаз – стать ведущей научной школой и ядром развития инноваций по лазерным, плазменным, радиационным и ускорительным технологиям, с уникальными образовательными программами, востребованными на российском и мировом рынке образовательных услуг.
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Аннотация
© 2020, Pleiades Publishing, Ltd.Abstract: The active layer of a lithium-oxygen battery (LOB) cathode must have a complex structure consisting of two types of pores (macropores and mesopores). For successful operation of the cathode active layer during the LOB discharge, attempts are being made to create two types of pore clusters: a macropore cluster that provides the transport of oxygen to a zone, where the final product, lithium peroxide, is formed, and a mesopore cluster that guarantees the delivery of lithium ions. The structure of the cathode active layer composed of two types of clusters is optimized in model calculations. However, it from the experimental data, even after the actual implementation of these theoretical recommendations, that the LOB dimensional characteristics during the discharge (in particular, current density I, mA/cm2, and cathodic capacitance C, C/cm2) remain low. In the present work, a new type of cathode active layer structure was suggested: a regular biporous model. In this model, the channels for the supply with oxygen and lithium ions are separated from each other. This fact allows one to simultaneously and independently improve the operation of each of the two channels. The calculations showed a clear advantage of the active layers with this new structure. In particular, the current density i and cathode capacitance С raised to tens of mA/cm2 and about of a thousand of C/cm2.
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Цитирование
A Regular Biporous Model of the Cathode Active Layer Structure of a Lithium-Oxygen Battery. Calculation of Overall Characteristics of the Cathode Active Layer / Chirkov, Y.G. [et al.] // Protection of Metals and Physical Chemistry of Surfaces. - 2020. - 56. - № 4. - P. 716-724. - 10.1134/S2070205120030119
URI
https://www.doi.org/10.1134/S2070205120030119
 https://www.scopus.com/record/display.uri?eid=2-s2.0-85091458009&origin=resultslist
 http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=Alerting&SrcApp=Alerting&DestApp=WOS_CPL&DestLinkType=FullRecord&UT=WOS:000572445000008
 https://openrepository.mephi.ru/handle/123456789/22383
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