Chapter 1 Lithium-Ion Batteries: From the Materials’ Perspective Camillus Sunday Obayi, Paul Sunday Nnamchi, and Fabian I. Ezema Chapter 2 Carbon Derivatives in Performance Improvement of Lithium-Ion Battery Electrodes Raphael M. Obodo, Assumpta C. Nwanya, Ishaq Ahmad, Mesfin A. Kebede, and Fabian I. Ezema Chapter 3 Current Status and Trends in Spinel Cathode Materials for Lithium-Ion Battery Mesfin A. Kebede, Nithyadharseni Palaniyandy, Lehlohonolo F. Koao, and Fabian I. Ezema, Motlalepulo R. Mhlongo Chapter 4 Zinc Anode in Hydrodynamically Enhanced Aqueous Battery Systems Philips Chidubem Tagbo, Chukwujekwu Augustine Okaro, Cyril Oluchukwu Ugwuoke, Henry Uchenna Obetta, Onyeka Stanislaus Okwundu, Sabastine Ezugwu, and Fabian I. Ezema Chapter 5 Advanced Materials for Energy Storage Devices Fekadu Gashaw Hone, Newayemedhin A. Tegegne, and Dinsefa Mensur Andoshe Chapter 6 Li6PS5X (X = Cl, Br, or I): A Family of Li-Rich Inorganic Solid Electrolytes for All-Solid-State Battery Anukul K. Thakur and Mandira Majumder Chapter 7 Recent Advances in Usage of Cobalt Oxide Nanomaterials as Electrode Material for Supercapacitors Jude N. Udeh, Raphael M. Obodo, Agnes C Nkele, Assumpta C. Nwanya, Paul M. Ejikeme, and Fabian I. Ezema Chapter 8 Recent Developments in Metal Ferrite Materials for Supercapacitor Applications Mary O. Nwodo, Raphael M. Obodo, Assumpta C. Nwanya, A.B.C. Ekwealor, and Fabian I. Ezema Chapter 9 Advances in Nickel-Derived Metal-Organic Framework-Based Electrodes for High-Performance Supercapacitor Blessing N. Ezealigo, Ebubechukwu N. Dim, and Fabian I. Ezema Chapter 10 The Place of Biomass-Based Electrode Materials in Next-Generation Energy Conversion and Storage Chioma E. Njoku, Innocent S. Ike, Adeolu A. Adediran, and Cynthia C. Nwaeju Chapter 11 Synthesis and Electrochemical Properties of Graphene Sylvester M. Mbam, Raphael M. Obodo, Assumpta C. Nwanya, A. B. C. Ekwealor, Ishaq Ahmad, and Fabian I. Ezema Chapter 12 Dual Performance of Fuel Cells as Efficient Energy Harvesting and Storage Systems Agnes Chinecherem Nkele, Fabian I. Ezema, and Mesfin A. Kebede Chapter 13 The Potential Role of Electrocatalysts in Electrofuels Generation and Fuel Cell Application Xolile Fuku, Andile Mkhohlakali, Nqobile Xaba, and Mmalewane Modibedi Chapter 14 Reliability Study of Solar Photovoltaic Systems for Long-Term UseZikhona Tshemese, Farai Dziike, Linda Z. Linganiso, and Kittessa Roro Chapter 15 Physical Methods to Fabricate TiO2 QDs for Optoelectronics Applications Cyril Oluchukwu Ugwuoke, Sabastine Ezugwu, S. L. Mammah, A.B.C. Ekwealor, Mutsumi Suguyima, and Fabian I. Ezema Chapter 16 Chemical Spray Pyrolysis Method to Fabricate CdO Thin Films for TCO Applications M. Anusuya and V. Saravanan Chapter 17 Photovoltaic Characteristics and Applications Mkpamdi N. Eke Chapter 18 Comparative Study of Different Dopants on the Structural and Optical Properties of Chemically Deposited Antimony Sulphide Thin Films Patrick A. Nwofe and Chinenye Ezeokoye Chapter 19 Research Progress in Synthesis and Electrochemical Performance of Bismuth Oxide Sylvester M. Mbam, Raphael M. Obodo, Assumpta, C. Nwanya, A. B. C. Ekwealor, Ishaq Ahmad, and Fabian I. Ezema Chapter 20 Earth-Abundant Materials for Solar Cell Applications Agnes Chinecherem Nkele, Sabastine Ezugwu, Mutsumi Suguyima, and Fabian I. Ezema Chapter 21 New Perovskite Materials for Solar Cell Applications Agnes Chinecherem Nkele, Sabastine Ezugwu, Mutsumi Suguyima, and Fabian I. Ezema Chapter 22 The Application of Carbon and Graphene Quantum Dots to Emerging Optoelectronic Devices Cyril Oluchukwu Ugwuoke, Sabastine Ezugwu, S. L. Mammah, A.B.C. Ekwealor, and Fabian I. Ezema Chapter 23 Solar Cell Technology: Challenges and Progress Newayemedhin A. Tegegne and Fekadu Gashaw Hone Chapter 24 Stannate Materials for Solar Energy Applications Calister N. Eze, Raphael M. Obodo, Mesfin A. Kebede, and Fabian. I. Ezema