Li-ion Battery Materials Overview

Principles

Definition

Li-ion battery materials is a multidisciplinary field of research that investigates the fundamental properties, synthesis, and performance of constituent materials (such as cathodes, anodes, electrolytes, and separators) critical for the function and advancement of lithium-ion battery technology, aiming to enhance energy density, power capability, cycle life, and safety for various energy storage applications.

Ontological type

Material Classes

Structure–Property Relations

Degradation Mechanisms

Key developments

Key Figures

Structure-Guided Intercalation era

John B. Goodenough [1], with appointments at Massachusetts Institute of Technology [3] and Carnegie Mellon University [4] during this era, helped crystallize structure-guided intercalation concepts. His key contributions include the development of LiCoO2 solid solutions, as described in LixCoO2 (0<x<-1): A new cathode material for batteries of high energy density [7], and the phospho‑olivines as Positive‑Electrode Materials for Rechargeable Lithium Batteries [6], which demonstrated how lattice stability, defect control, and intercalation pathways govern voltage, capacity, and safety. Jean‐Marie Tarascon [2], with affiliations at Massachusetts Institute of Technology [3] and University of California, Berkeley [5], helped consolidate spinel LiMn2O4 and CoO2 as key cathode chemistries in this era. He contributed The Spinel Phase of LiMn2 O 4 as a Cathode in Secondary Lithium Cells [9], Synthesis Conditions and Oxygen Stoichiometry Effects on Li Insertion into the Spinel LiMn2 O 4 [10], and CoO2, The End Member of the Li x CoO2 Solid Solution [8], underscoring how synthesis control and oxygen stoichiometry shape reversible lithiation and voltage stability in this era [9][10][8].

Nanoscale Electrode Engineering era

Peter G. Bruce [1] is a leading figure in nanoscale electrode engineering during the 1999-2012 era, with affiliations at Imperial College London [5], the University of Minnesota [4], and Ulsan National Institute of Science and Technology [3]. His key contributions center on Nanomaterials for Rechargeable Lithium Batteries [7], which demonstrated how nanoscale architectures shorten diffusion lengths and boost capacity, and Reactions in the Rechargeable Lithium–O2 Battery with Alkyl Carbonate Electrolytes [8], which clarified reaction pathways and electrolyte roles for energy density. Bruno Scrosati [2] is associated with Imperial College London [5] and Tel Aviv University [6] during this period. His contributions include the Nanomaterials for Rechargeable Lithium Batteries [7] and A High‑Performance Polymer Tin Sulfur Lithium Ion Battery [9], which together linked nanoscale materials concepts with practical chemistries to enable high-rate, cycle-stable systems, illustrating how nanoscale engineering and conductive networks shaped this era [7][9].

Interfacial Engineering and SEI era

John B. Goodenough [1] is associated with Carnegie Mellon University [3] and National University of Singapore [4] in this era. His key contributions include The Li-Ion Rechargeable Battery: A Perspective [7] and A Superior Low‑Cost Cathode for a Na‑Ion Battery [8], which advanced understanding of battery chemistries and highlighted cost and scalability considerations essential for energy storage progress in this era. Ji‑Guang Zhang [2] is associated with Richland College [5] and University of California, San Diego [6] in this era. His contributions include Lithium metal anodes for rechargeable batteries [9], High Energy Density Lithium–Sulfur Batteries: Challenges of Thick Sulfur Cathodes [10], and High-Concentration Ether Electrolytes for Stable High-Voltage Lithium Metal Batteries [11], which collectively advanced understanding of interfacial stability, dendrite suppression, and electrolyte design crucial for high‑energy, safe Li-based systems.