Academic Journal

Favorable Electrochemical Performance of LiMn 2 O 4 /LiFePO 4 Composite Electrodes Attributed to Composite Solid Electrolytes for All-Solid-State Lithium Batteries

التفاصيل البيبلوغرافية
العنوان: Favorable Electrochemical Performance of LiMn 2 O 4 /LiFePO 4 Composite Electrodes Attributed to Composite Solid Electrolytes for All-Solid-State Lithium Batteries
المؤلفون: Chunhua Wang, Guoliang Bai, Xingjiang Liu, Yang Li
سنة النشر: 2021
مصطلحات موضوعية: Biochemistry, Physiology, Evolutionary Biology, Hematology, Space Science, Biological Sciences not elsewhere classified, Chemical Sciences not elsewhere classified, stability, electrolyte, material platform voltage difference, discharge platform, cathode, All-Solid-State Lithium Batteries L, capacity, Favorable Electrochemical Performance, Composite, 4.0 V, LAGP-PEO, LAGP, LiMn 2 O 4, LiFePO 4, socio
الوصف: Li 1.5 Al 0.5 Ge 1.5 (PO 4 ) 3 (LAGP)-PEO composite electrolytes are unstable in LiMn 2 O 4 . In addition, the discharge platform potential (2.8 and 4.0 V) difference of LiMn 2 O 4 is relatively large, whereas the discharge platform potential (3.5 V) of LiFePO 4 is between 2.8 and 4.0 V. Thus, LiMn 2 O 4 and LiFePO 4 can be compounded together to reduce the material platform voltage difference and obtain the advantages of both materials at the same time. Here, LiMn 2 O 4 /LiFePO 4 composite cathodes were applied in solid-state batteries. LAGP-PEO­(LiTFSI) was used as the electrolyte. The Li/composite cathode battery using composite electrolytes has a reversible capacity of 192.8 mAh g –1 at 50 °C and 0.1 C. It possesses favorable rate performance and exhibits very good cycling stability. In addition, the composite electrolytes can prevent the further occurrence of the Jahn–Teller effect. Meanwhile, the charge-transfer resistance slightly decreases in 10 cycles. The excellent capacity retention of the battery is connected with the excellent electrochemical stability and the well-interfaced contacts of the composite electrolytes with electrodes.
نوع الوثيقة: article in journal/newspaper
اللغة: unknown
Relation: https://doi.org/10.1021/acs.langmuir.0c03274.s001
DOI: 10.1021/acs.langmuir.0c03274.s001
الاتاحة: https://doi.org/10.1021/acs.langmuir.0c03274.s001
Rights: undefined
رقم الانضمام: edsbas.4E6AB8EF
قاعدة البيانات: BASE
الوصف
DOI:10.1021/acs.langmuir.0c03274.s001