The enormous growth in portable consumer electronic devices such as mobile phones, laptop computers, digital cameras, and personal digital assistants over the past decade has generated a large interest in compact, high-energy density and lightweight batteries. In addition, growing environmental concerns have simultaneously driven the development of advanced batteries for electric vehicles. Li-ion batteries are appealing candidates for these applications as they provide higher energy density compared to the other rechargeable batteries systems available, such as the lead acid, nickel cadmium (NiCd), and nickel-metal hydride (NiMH) batteries. Today, the Li-ion is the fastest growing and most promising rechargeable battery chemistry. This book contains comprehensive coverage of electrode materials, electrolytes and additive materials for Li-Ion Batteries, as well as displays of the future strategies for continued development of the Li-Ion Batteries. It contains authoritative contribution from leading researchers to highlight the emerging opportunities in the field of lithium-ion batteries. This book focuses on the development of new cathode materials which encompass carbon nanotubes (CNTs) to ideally produce highly specific capacities. The development of new technologies and miniaturization in the microelectronics industry has reduced the power and current requirements of small power electronic devices such as smart cards and other CMOS circuit applications. Research on lithium-ion secondary batteries began in the 1980s because of the growing demand for power sources for portable electronic devices. After the early 1990s, the demands for higher capacities and even smaller sizes energy systems significantly increased. Further, the explosive growth in the use of limited fossil fuels and their associated environmental issues and economical aspects are major concerns. Hence, the enormous growth in the demand for low-cost, environmentally friendly energy sources over the past decade has generated a significant need for high energy density portable energy sources. The book presents emphasis on TiO2-based materials has been widely studied in the field of photocatalysis, sensors, and solar cells. Besides that, TiO2-based materials are of great interest for energy storage and conversion devices, in particular rechargeable lithium ion batteries (LIBs). With comprehensive and up-to-date information on lithium-ion battery principles, experimental research, and future prospects, this book will help for electrochemical engineers and battery and fuel cell experts everywhere, from research organizations and universities to an international assortment of professional industries.