CHẾ TẠO COMPOSITE Si/GRAPHENE/SUPER-P ỨNG DỤNG LÀM VẬT LIỆU ANOT CHO PIN SẠC LI-ION PHÓNG-SẠC NHANH

 0 Người đánh giá. Xếp hạng trung bình 0

Tác giả: Thị Mai Thanh Đinh, Lê Thanh Nguyên Huỳnh, Viết Hải Lê, Hoàng Anh Nguyễn, Ngọc Đang Nguyễn, Thái Hoàng Nguyễn, Thị Thơm Nguyễn, Thị Thu Trang Nguyễn, Thu Phương Nguyễn, Thị Năm Phạm, Đại Lâm Trần, Nguyễn Hà Trang Trần

Ngôn ngữ: vie

Ký hiệu phân loại:

Thông tin xuất bản: Tạp chí Phân tích Hóa, Lý và Sinh học, 2024

Mô tả vật lý: tr.182

Bộ sưu tập: Metadata

ID: 462186

 Lithium-ion batteries (LIBs), characterized by high capacity, extended lifespan, and environmental friendliness, have emerged as a leading choice in energy storage technology. However, silicon (Si) as an anode material presents significant challenges due to excessive volumetric expansion during charge and discharge cycles, leading to structural damage and performance degradation. In this study, we investigated and successfully synthesized a Si/Super P: graphene composite material using a ball milling technique to examine the impact of carbon content ratios on the stability and specific capacity of the material. Experimental results indicated that the Si/30% Super P: 50% graphene composite demonstrated the highest electrochemical performance (initial specific capacity of 1500 mAh.g-1), maintaining stable specific capacity (Coulombic efficiency >
  90%) after 100 cycles and capable of fast charge-discharge at high current rates (10C). The study underscores the importance of integrating conductive Super P carbon with graphene, which forms a conductive network enhancing Li+transport and reducing internal resistance during charging and discharging. The Si/C (graphene and Super P carbon) composite material, with the combination of Super P carbon and graphene, not only provides an effective solution to mitigate Si volumetric expansion but also extends the application potential of Si in commercial anode materials for LIBs, promising a breakthrough in modern battery technology.
Tạo bộ sưu tập với mã QR

THƯ VIỆN - TRƯỜNG ĐẠI HỌC CÔNG NGHỆ TP.HCM

ĐT: (028) 36225755 | Email: tt.thuvien@hutech.edu.vn

Copyright @2024 THƯ VIỆN HUTECH