Lithium-ion batteries have had a tremendous impact on several sectors of our society; however, the intrinsic limitations of Li-ion chemistry limits their ability to meet the increasing demands of developing more advanced portable electronics, electric vehicles, and grid-scale energy storage systems. Therefore, battery chemistries beyond Li ions are being intensively investigated and need urgent breakthroughs toward commercial applications, wherein the use of metallic Li is one of the most intuitive choices. Despite several decades of oblivion due to safety concerns regarding the growth of Li dendrites, Li-metal anodes are now poised to be revived because of the advances in investigative tools and globally invested efforts. In this review, we first summarize the existing issues with regard to Li anodes and their underlying reasons and then highlight the recent progress made in the development of high-performance Li anodes. Finally, we propose the persisting challenges and opportunities toward the exploration of practical Li-metal anodes.

Towards practical lithium-metal anodes

Solid composite electrolytes (SCEs) that combine the advantages of solid polymer electrolytes (SPEs) and inorganic ceramic electrolytes (ICEs) present acceptable ionic conductivity, high mechanical strength, and favorable interfacial contact with electrodes, which greatly improve the electrochemical performance of all-solid-state batteries compared to single SPEs and ICEs. However, there are many challenges to overcome before the practical application of SCEs, including the low ionic conductivity less than 10-3 S cm-1 at ambient temperature, poor interfacial stability, and high interfacial resistance, which greatly restrict the room temperature performance. Herein, the advances of SCEs applied in all-solid-state lithium batteries are presented, including the Li ion migration mechanism of SCEs, the strategies to enhance the ionic conductivity of SCEs by various morphologies of ICEs, and construction methods of the low resistance and stable interfaces of SCEs with both cathode and anode. Finally, some typical applications of SCEs in lithium batteries are summarized and future development directions are prospected. This work presents how it is quite significant to further enhance the ionic conductivity of SCEs by developing the novel SPEs with the special morphology of ICEs for advanced all-solid-state lithium batteries.

https://onlinelibrary.wiley.com/doi/epdf/10.1002/advs.201903088

Progress and Perspective of Ceramic/Polymer Composite Solid Electrolytes for Lithium Batteries

All-solid-state lithium ion batteries (ASSLBs) are considered next-generation devices for energy storage due to their advantages in safety and potentially high energy density. As the key component in ASSLBs, solid-state electrolytes (SSEs) with non-flammability and good adaptability to lithium metal anodes have attracted extensive attention in recent years. Among the current SSEs, composite solid-state electrolytes (CSSEs) with multiple phases have greater flexibility to customize and combine the advantages of single-phase electrolytes, which have been widely investigated recently and regarded as promising candidates for commercial ASSLBs. Based on existing investigations, herein, we present a comprehensive overview of the recent developments in CSSEs. Initially, we introduce the historical development from solid-state ionic conductors to CSSEs, and then summarize the fundamentals including mechanisms of lithium ion transport, key evaluation parameters, design principles, and key materials. Four main types of advanced structures for CSSEs are classified and highlighted according to the recent progress. Moreover, advanced characterization and computational simulation techniques including machine learning are reviewed for the first time, and the main challenges and perspectives of CSSEs are also provided for their future development.

A review of composite solid-state electrolytes for lithium batteries: fundamentals, key materials and advanced structures.

Utilizations of agricultural waste as adsorbent for the removal of contaminants: A review.

The utilization of leaf-based adsorbents for dyes removal: A review

A novel solid PEO/LLTO-nanowires polymer composite electrolyte for solid-state lithium-ion battery

High-performance solid PEO/PPC/LLTO-nanowires polymer composite electrolyte for solid-state lithium battery

Carbon-based aerogel prepared via direct conversion of natural biomass has wide application prospects in the environment and energy field. Herein, the sustainable and environmentally friendly porous carbon aerogel is prepared through hydrothermal treatment, freeze-drying, and postpyrolysis using sweet potato as the precursor. The as-prepared carbon aerogel is used to modify the commercial separator of lithium–sulfur batteries to solve the problems of poor cycle life and low utilization rate of active substances. The carbon aerogel coating can not only suppress the shuttle effect of the polysulfide intermediates during cycling and reduce the cell resistance but also act as an upper current collector to increase the utilization rate of sulfur. The cell with carbon aerogel modified separator exhibits high electrochemical performance. The results show that the initial discharge capacity is 1216 mAh/g at 0.1 C and the reversible discharge capacity retains 431 mAh/g after 1000 cycles at 1 C with the Coulombic e...

High Performance Lithium–Sulfur Batteries with a Sustainable and Environmentally Friendly Carbon Aerogel Modified Separator

The water contamination caused by organic solvents and oils has become the focus of attention and research for every country in the world. This study was focused on the preparation method of the carbon aerogel using waste durian shell (DSCA) as the biomass precursor and its application in removal of organic pollutants. A variety of characterization techniques including the water contact angle (WCA), scanning electron microscopy (SEM), transmission electron microscopy (TEM), N 2 adsorption/desorption isotherms, Fourier transform infrared (FT-IR) spectroscopy, X-ray diffraction (XRD), and Raman spectroscopy had been exploited to investigate the synthesized materials. The results indicated that DSCA had an interconnected mesoporous structure mainly composed of the defective graphitic layers and its specific surface area was 734.96 m 2 /g. Furthermore, the prepared carbon aerogels were applied to the adsorption of various organic liquids and oils in our daily life. The recyclability of DSCA was also tested in this work. DSCA, therefore, might be an alternative adsorbent for removal of organic solvents/oils in polluted waters.

Removal of organic solvents/oils using carbon aerogels derived from waste durian shell

Three-dimension ivy-structured MoS2 nanoflakes-embedded nitrogen doped carbon nanofibers composite membrane as free-standing electrodes for Li/polysulfides batteries

Lin Zhu

Papers

A novel solid PEO/LLTO-nanowires polymer composite electrolyte for solid-state lithium-ion battery

High-performance solid PEO/PPC/LLTO-nanowires polymer composite electrolyte for solid-state lithium battery

High Performance Lithium–Sulfur Batteries with a Sustainable and Environmentally Friendly Carbon Aerogel Modified Separator

Removal of organic solvents/oils using carbon aerogels derived from waste durian shell

Three-dimension ivy-structured MoS2 nanoflakes-embedded nitrogen doped carbon nanofibers composite membrane as free-standing electrodes for Li/polysulfides batteries