nucВестник НЯЦ РКNNC RK Bulletin1729-75161729-7885Национальный ядерный центр Республики Казахстан10.52676/1729-7885-2026-1-29-35nuc-927Research ArticleСтатьиАКТИВИРОВАННЫЙ УГОЛЬ ИЗ РИСОВОЙ ШЕЛУХИ КАК ПЕРСПЕКТИВНЫЙ АНОДНЫЙ МАТЕРИАЛ ДЛЯ ЛИТИЙ-ИОННЫХ БАТАРЕЙRICE HUSK-DERIVED ACTIVATED CARBON AS A POTENTIAL ANODE MATERIAL FOR LITHIUM-ION BATTERIEShttps://orcid.org/0000-0003-2181-1139СаитоваН.SaitovaN.

Алматы

Almaty

nadira371@gmail.comhttps://orcid.org/0000-0002-8998-0409АсқарұлыҚ.AskarulyK.

Алматы

Almaty

k.askaruly@gmail.comhttps://orcid.org/0000-0002-4523-1211ЕсжанЕ.YeszhanY.

Алматы

Almaty

yelriza.yeszhan@gmail.comhttps://orcid.org/0000-0002-2905-602XАмрусР.AmrousseR.

Эль-Джадида

El Jadida

amrousse.r@ucd.ac.mahttps://orcid.org/0000-0003-1953-3686ЕвлампиеваЕ.YevlampiyevaY.

Семей

Semey

elena_semei@mail.ruhttps://orcid.org/0000-0002-9705-7438АзатС.AzatS.

Алматы

Almaty

seytkhan.azat@gmail.comНАО «КазНИТУ им. К.И. Сатпаева»КазахстанNP JSC “K.I. Satbayev KazNRTU”KazakhstanУниверситет Шуайба ДуккалиМароккоChouaib Doukkali UniversityMoroccoНАО «Шəкəрім университет»КазахстанNP JSC “Shakarim University”Kazakhstan202631032026012935Copyright © Саитова Н., Асқарұлы Қ., Есжан Е., Амрус Р., Евлампиева Е., Азат С., 20262026Саитова Н., Асқарұлы Қ., Есжан Е., Амрус Р., Евлампиева Е., Азат С.Saitova N., Askaruly K., Yeszhan Y., Amrousse R., Yevlampiyeva Y., Azat S.Данная работа распространяется под лицензией Creative Commons Attribution 4.0.This work is licensed under a Creative Commons Attribution 4.0 License.https://journals.nnc.kz/jour/article/view/927

В работе представлены результаты получения активированного угля из рисовой шелухи (РШ) с применением физико-химической активации, а также его характеристика как анодного материала для литий-ионных батарей. Проведено сравнение морфологических, структурных и электрохимических свойств материалов, полученных при различных режимах термической обработки. Исследованы механизмы улучшения удельной ёмкости и циклической стабильности за счёт поверхностной модификации и десиликации. Активированный уголь, полученный при 600 ℃ с последующей обработкой KOH, продемонстрировал высокую стабильность в 50 циклах при удельной ёмкости ~300 мА·ч/г, что делает его перспективной альтернативой традиционному графиту.

This work investigates the synthesis and application of activated carbon derived from rice husk (RH) as a sustainable anode material for lithium-ion batteries (LIBs). The RH precursor underwent a sequence of pretreatment steps including washing, drying, pyrolysis at 500 ℃ in argon atmosphere, chemical activation with KOH at 850 ℃ , and subsequent desilication. The resulting material exhibited a well-developed micro/mesoporous structure with a high specific surface area (>900 m²/g) and structural stability. Morphological analysis confirmed a uniform porous carbon matrix, while XRD revealed the formation of amorphous carbon. Electrochemical performance tests showed that the RH-derived carbon retained a reversible capacity of ~280–300 mAh/g over 50 charge–discharge cycles, indicating excellent cyclic stability and lithium-ion intercalation capability. Cyclic voltammetry and galvanostatic tests demonstrated predominant pseudocapacitive behavior, associated with surface functionalities and structural defects induced by KOH activation. Compared to conventional graphite (372 mAh/g), this bio-derived carbon offers competitive capacity with lower cost and better sustainability. The study highlights the potential of RH-based activated carbon as a scalable and eco-friendly alternative for next-generation energy storage devices, particularly in LIBs and supercapacitors. Future work will focus on optimizing activation parameters and exploring heteroatom doping to further enhance conductivity and rate performance.

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The authors declare that there are no conflicts of interest present.