Complex Structure Model Mutated Anode/Cathode Electrodes for Improving Large-Scale Battery Designs

Abstract

We fabricate diverse geometric scales of lithium-ion battery (LIB) pattern assemblies in CR2032-circular coin designs by using complex building-block (CBB) anode/cathode electrodes as hierarchical models. The CBB anode/cathode electrode architectonics are designed with multiple complex hierarchies, including uni-, bi-, and tri-modal morphologies, multi-directional configurations, geometrical assemblies oriented in nano-/micro-scale structures, and surface mesh topologies, which allow us to leverage half-and full-cell CBB-LIB models. The CBB-LIB CR2032-circular coin designs have a Coulombic efficacy of ~99.7% even after 2000 th lithiation/delithiation (discharge/charge) cycles, an outstanding battery energy density of 154.4Wh/kg, and a specific discharge capacity of 163.6 mAh/g from 0.8 V to 3.5 V and at 0.1 C. The architectonic configurations and geometrics of the modulated full-cell CBB-LIB CR2032-circular designs play key roles in creating sustainable, full-scale CBB-mutated-LIBs with continuous and non-resisted surface transports and in achieving a sensible distribution of electron/Li + ions. With hierarchical uni-, bi-, and tri-modal complexities, a dense collar packing f anode/cathode CBBmutated-LIB pouch-type sets in stacked layers can facilitate a rational design of CBB-pouch-type LIBs. Our CBB-mutated pouch-type LIB models have a sustainable Li + ion-transport along multicomplex CBB-surfaces, substantial areal discharging capacity, and excellent volumetric-and gravimetric-cell energy densities and specific capacitances that fulfill the powerful force-driving range and tradeoff requirements in electric vehicle applications.

Morphology and Oxygen Defects Mediated Improved Pseudocapacitive Li+ Storage of Conversion-Based Lithium Iron Oxide

“…The inferior capacities and cyclability in the full cell may be caused by many factors, such as the mismatch of the current densities or the inferior cyclability of our self-prepared LCO cathode itself in half-cell measurements. , Further, the energy density of the full cell-based LFO nanofiber was obtained by the average potential of the charge–discharge curve and the total active mass of both electrodes. The energy density was found to be 160 (±5) Wh kg –1 , which is better than many recently reported full Li-ion cells − and comparable to the commercial products. , These impressive results in the full-cell configuration also demonstrate the practical viability of LFO nanofibers as anodes for next-generation high-performance, cost-effective LIBs for power back up, etc.…”

CuFeS2 Nanosheets Assembled into Honeycomb-like Microspheres as Stable High-Capacity Anodes for Sodium-Ion Batteries

“…With the increasing use of fossil fuels, the effects of global climate warming and environmental pollution have become more and more severe; developing electrochemical energy storage batteries is urgent to address emerging energy crisis in electric vehicles and large-scale energy storage devices. , Recently, various energy storage batteries by converting chemical energy to electrical energy have been developed both in the academic and the industrial environment. − For example, lithium-ion batteries (LIBs) were successfully improved for energy storage systems. , However, the applications of LIBs have limitations to some extent because of the challenge in safety and durability problems. Therefore, the attention gradually transferred to new electrode materials which are represented by sodium-ion batteries (SIBs). − SIBs have a potential advantage of abundant reserves of the Na resource and competitive energy density, compared to LIBs. − The high electrochemical performance of SIBs depends on their anode materials because Na + cannot be inserted into the graphite, which leads to the graphite anode that cannot be used in SIBs.…”

Hericium erinaceus-like Copper-Based MOFs as Anodes for High Performance Lithium Ion Batteries

“…Additionally, the expensive and toxic ligands used, complicated synthesis process, as well as randomly stacked morphology of Cu-MOF electrodes are expected to be addressed. It is thought that good control of the morphological configuration of electrode materials is an optimal strategy to enhance structural stability, Li + transportation rate, and therefore the rate performance and long cycling life of LIBs. − Aside from good electrochemical performance, the preparation of Cu-MOFs through a simple, green, and economical approach is also strongly desired.…”