Journal ArticleDOI
Challenges for Rechargeable Li Batteries
John B. Goodenough,Youngsik Kim +1 more
Reads0
Chats0
TLDR
In this paper, the authors reviewed the challenges for further development of Li rechargeable batteries for electric vehicles and proposed a nonflammable electrolyte with either a larger window between its lowest unoccupied molecular orbital and highest occupied molecular orbital (HOMO) or a constituent that can develop rapidly a solid/ electrolyte-interface (SEI) layer to prevent plating of Li on a carbon anode during a fast charge of the battery.Abstract:
The challenges for further development of Li rechargeable batteries for electric vehicles are reviewed. Most important is safety, which requires development of a nonflammable electrolyte with either a larger window between its lowest unoccupied molecular orbital (LUMO) and highest occupied molecular orbital (HOMO) or a constituent (or additive) that can develop rapidly a solid/ electrolyte-interface (SEI) layer to prevent plating of Li on a carbon anode during a fast charge of the battery. A high Li-ion conductivity (σ Li > 10 ―4 S/cm) in the electrolyte and across the electrode/ electrolyte interface is needed for a power battery. Important also is an increase in the density of the stored energy, which is the product of the voltage and capacity of reversible Li insertion/extraction into/from the electrodes. It will be difficult to design a better anode than carbon, but carbon requires formation of an SEI layer, which involves an irreversible capacity loss. The design of a cathode composed of environmentally benign, low-cost materials that has its electrochemical potential μ C well-matched to the HOMO of the electrolyte and allows access to two Li atoms per transition-metal cation would increase the energy density, but it is a daunting challenge. Two redox couples can be accessed where the cation redox couples are "pinned" at the top of the O 2p bands, but to take advantage of this possibility, it must be realized in a framework structure that can accept more than one Li atom per transition-metal cation. Moreover, such a situation represents an intrinsic voltage limit of the cathode, and matching this limit to the HOMO of the electrolyte requires the ability to tune the intrinsic voltage limit. Finally, the chemical compatibility in the battery must allow a long service life.read more
Citations
More filters
Journal ArticleDOI
Li3BO3–Li2CO3: Rationally Designed Buffering Phase for Sulfide All-Solid-State Li-Ion Batteries
Sung Hoo Jung,Sung Hoo Jung,Kyungbae Oh,Young Jin Nam,Young Jin Nam,Dae Yang Oh,Dae Yang Oh,Philipp Brüner,Kisuk Kang,Yoon Seok Jung +9 more
TL;DR: Most inorganic solid electrolytes (SEs) suffer from narrow intrinsic electrochemical windows and incompatibility with electrode materials, which results in the below par electrochemical performance as discussed by the authors.
Journal ArticleDOI
Unveiling the Roles of Binder in the Mechanical Integrity of Electrodes for Lithium-Ion Batteries
TL;DR: In this paper, the roles of binders in the mechanical integrity of electrodes for lithium-ion batteries were studied by coupled microscratch and digital image correlation (DIC) techniques, and a microscratch based composite model was developed to decouple the carbon particle/particle cohesion strength from the electrode-film/copper-current-collector adhesion strength.
Journal ArticleDOI
A rechargeable iodine-carbon battery that exploits ion intercalation and iodine redox chemistry
TL;DR: The authors combine the ion intercalation properties of porous graphitic carbons with the redox chemistry of iodine to produce iodine–carbon batteries with high reversible capacities.
Journal ArticleDOI
Insight into the Atomic Structure of High-Voltage Spinel LiNi0.5Mn1.5O4 Cathode Material in the First Cycle
Lin Mingxiang,Liubin Ben,Yang Sun,Wang Hao,Zhenzhong Yang,Lin Gu,Xiqian Yu,Xiao-Qing Yang,Haofei Zhao,Richeng Yu,Michel Armand,Xuejie Huang +11 more
TL;DR: In this paper, the average structure of LiNi0.5Mn1.5O4 was investigated during the first cycle (3.5-4.9 V) at room temperature, and two types of local atomic-level migration of transition metals (TM) ions in the cathode were observed.
References
More filters
Journal ArticleDOI
Nanostructured materials for advanced energy conversion and storage devices
Antonino S. Aricò,Peter G. Bruce,Bruno Scrosati,Jean-Marie Tarascon,Jean-Marie Tarascon,Walter van Schalkwijk +5 more
TL;DR: This review describes some recent developments in the discovery of nanoelectrolytes and nanoeLECTrodes for lithium batteries, fuel cells and supercapacitors and the advantages and disadvantages of the nanoscale in materials design for such devices.
Journal ArticleDOI
Phospho‐olivines as Positive‐Electrode Materials for Rechargeable Lithium Batteries
TL;DR: In this article, the authors showed that a reversible loss in capacity with increasing current density appears to be associated with a diffusion-limited transfer of lithium across the two-phase interface.
Journal ArticleDOI
High-performance lithium battery anodes using silicon nanowires
Candace K. Chan,Hailin Peng,Gao Liu,Kevin McIlwrath,Xiao Feng Zhang,Robert A. Huggins,Yi Cui +6 more
TL;DR: The theoretical charge capacity for silicon nanowire battery electrodes is achieved and maintained a discharge capacity close to 75% of this maximum, with little fading during cycling.
Journal ArticleDOI
Nonaqueous liquid electrolytes for lithium-based rechargeable batteries.
TL;DR: The phytochemical properties of Lithium Hexafluoroarsenate and its Derivatives are as follows: 2.2.1.
Journal ArticleDOI
Nanomaterials for rechargeable lithium batteries
TL;DR: Some of the recent scientific advances in nanomaterials, and especially in nanostructured materials, for rechargeable lithium-ion batteries are reviewed.