Fabrication and electrochemical characteristics of LiFePO4 powders for lithium-ion batteries
Yazarlar (4)
Ozan Toprakci Nc State University, Amerika Birleşik Devletleri
Doç. Dr. Hatice Aylin KARAHAN TOPRAKÇI Nc State University, Amerika Birleşik Devletleri
Liwen Ji Nc State University, Amerika Birleşik Devletleri
Xiangwu Zhang Nc State University, Amerika Birleşik Devletleri
Makale Türü Açık Erişim Diğer (Teknik, not, yorum, vaka takdimi, editöre mektup, özet, kitap krıtiği, araştırma notu, bilirkişi raporu ve benzeri) (SCOPUS dergilerinde yayınlanan teknik not, editöre mektup, tartışma, vaka takdimi ve özet türünden makale)
Dergi Adı Kona Powder and Particle Journal
Dergi ISSN 0288-4534 Wos Dergi Scopus Dergi
Makale Dili İngilizce Basım Tarihi 01-2010
Cilt / Sayı / Sayfa 28 / 1 / 50–73 DOI 10.14356/kona.2010008
UAK Araştırma Alanları
Tekstil Bilimi
Özet
Novel powder fabrication technologies provide opportunities to develop high-performance, low-cost cathode materials for rechargeable lithium-ion batteries. Among various energy storage technologies, rechargeable lithium-ion batteries have been considered as effective solution to the increasing need for high-energy density electrochemical power sources. Rechargeable lithium-ion batteries offer energy densities 2 - 3 times and power densities 5 - 6 times higher than conventional Ni-Cd and Ni-MH batteries, and as a result, they weigh less and take less space for a given energy delivery. However, the use of lithium-ion batteries in many large applications such as electric vehicles and storage devices for future power grids is hindered by the poor thermal stability, relatively high toxicity, and high cost of lithium cobalt oxide (LiCoO2) powders, which are currently used as the cathode material in commercial lithium-ion batteries. Recently, lithium iron phosphate (LiFePO4) powders have become a favorable cathode material for lithium-ion batteries because of their low cost, high discharge potential (around 3.4 V versus Li/Li+), large specific capacity (170 mAh/g), good thermal stability, and high abundance with the environmentally benign and safe nature. As a result, there is a huge demand for the production of high-performance LiFePO4 powders. However, LiFePO4 also has its own limitation such as low conductivity (~10-9 S/cm), which results in poor rate capability. This can be addressed by modifying the powder structure using novel fabrication technologies. This paper presents an overview of recent advances in the fabrication of high-performance LiFePO4 powders for lithium-ion batteries. The LiFePO4 powder fabrication methods covered include: solid-state synthesis, mechanochemical activation, carbothermal reduction, microwave heating, hydrothermal synthesis, sol-gel synthesis, spray pyrolysis, co-precipitation, microemulsion drying, and others. The impacts of these fabrication methods on the structure and performance of LiFePO4 powders are discussed. In addition, the improvement of the conductivity of LiFePO4 powders through novel powder technologies is addressed. © 2010 Hosokawa Powder Technology Foundation.
Anahtar Kelimeler
Cathode | Energy storage | Lithiumion battery | Powder fabrication
Pdf İndir
BM Sürdürülebilir Kalkınma Amaçları
Atıf Sayıları
Scopus 78
Fabrication and electrochemical characteristics of LiFePO4 powders for lithium-ion batteries

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