One‐dimensional metal–organic framework‐reinforced gel polymer electrolyte enables a stable Li metal battery

Sodium-ion batteries, which are viewed as the alternative candidate for lithium-ion batteries, are now receiving extensive attention in recent years. This is because of the earth's abundance, the widespread sodium resource, and the low cost of battery production. Despite tremendous effort has been made to improve the battery performance of sodium-ion batteries, several serious problems hinder the large-scale practical applications. These problems such as low energy density and efficiency, poor cycle life, and low charge/discharge rate are largely determined by fundamental mechanism issues of electrode materials that are not sufficiently understood yet. Therefore multiple techniques should be used to get an in-depth understanding of material properties.In this review, a comprehensive overview of the material characterization technique is provided and hope it could improve the battery research for all the scientific researchers.

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Advanced material characterization techniques for sodium‐ion battery

Liu

Tong

Zhang

et al. 2022

“…In recent years, energy conservation and storage devices have been the focus of significant research efforts due to the energy crisis. 1,2 Electrochromic energy storage (EES) devices combine the advantages of energy storage with accompanying color changes through electrochemical reactions and are suitable for many rapidly developing technologies, including electrochromic (EC) smart windows, [3][4][5] wearable devices, 6 flexible displays, 7,8 and miniaturized indicators. 9,10 As we know, electrode material plays a key role in assembling EES devices.…”

Section: Introductionmentioning

confidence: 99%

Copper complex/polyoxometalate‐based tunable multi‐color film for energy storage

Chu

Zhang

et al. 2022

Polyoxometalates (POMs) are considered as an attractive option for electrochromic energy storage (EES) system due to their unique electrochemical feature. Herein, a composite film NW/P 2 W 17 /Cu (phen) 2 based on Dawsontype monolacunary POMs K 10 P 2 W 17 O 61 (abbreviated as P 2 W 17 ) and copper complex [Cu II (phen) 2 ](NO 3 ) 2 (abbreviated as Cu (phen) 2 ) formed on TiO 2 nanowire (abbreviated as NW) array substrate was fabricated by hydrothermal process and layer-by-layer self-assembly combination method. This rational designed film NW/P 2 W 17 /Cu (phen) 2 exhibits excellent tunable multicolor electrochromic behavior and improved pseudocapacitive performance with large optical modulation (43.7% at 600 nm), fast switching time (t c = 2.9 s, t b = 9.5 s), and high volumetric capacitance (228.0 F cm À3 at 0.3 mA cm À2 ). In the process of charge and discharge, the composite film can realize the transformation from light green to orange, green, and finally to blue-green color, successfully achieve the bridge between electrochromic behavior and energy storage, and monitor the level of stored energy by color change. This work showed great potential of POMs-based electrode materials for integrated electrochromism and energy storage applications.

“…1 Benefitting from the high energy density, good cycling stability, and excellent storage performance, LIBs are increasing demands for diverse energy storage devices, such as cell phones, laptops, and electrical vehicles. 2 However, because of a limited theoretical capacity (372 mAh g À1 ) of the graphite anode in the commercial LIBs, it can only deliver a low power density ($300 Wh kg À1 ) and a long charging time (hours or longer). 3 Thus, it is essential to improve anode materials with higher capacity and longer battery life for LIBs.…”

Section: Introductionmentioning

confidence: 99%

Electrospinning synthesis of few‐layer hexagonal antimonene nanosheets as anode for lithium‐ion batteries

Sun

Zheng

Liu

et al. 2022

Two-dimensional (2D) antimonene (Sb) is regarded as a promising anode candidate for lithium-ion batteries owing to its theoretical capacity (660 mAh g À1 ).Preparing hexagonal Sb nanosheets (H-SbNs) has been addressed an effective strategy to resolve the drastic volume expansion and the pulverization issues.Here, we present a facile method to prepare the few-layer H-SbNs on the surface of carbon fibers via the electrospinning with a thermal annealing process. When evaluated as an anode for lithium storage, the H-SbN electrode delivers a high rate performance and excellent cycling stability. Electrochemical analysis reveals that the H-SbN electrode displays the mainly diffusion-controlled capacitive contributions and excellent lithium-ion and electron transport. Our findings demonstrate that 2D materials are superior to use as the Sb-based anodes for electrochemical lithium storage.