Lixin Qiao

• Doctor of Applied Chemistry and Polymeric Materials
• Qingdao Institute of Bioenergy and Bioprocess Technolog

A multi-color transparent electrochromic display with a zinc anode was developed using V 2 O 5 nanodots and a Zn ²⁺ /Li ⁺ electrolyte, achieving wide-band adjustments of vanadate devices and exhibiting excellent electrochromic performance.

Traditional lithium salts are difficult to meet practical application demand of lithium metal batteries (LMBs) under high voltages and temperatures. LiPF6, as the most commonly used lithium salt, still suffers from notorious moisture sensitivity and inferior thermal stability under those conditions. Here, we synthesize a lithium salt of lithium per...

High energy density lithium‐ion batteries (LIBs) adopting high‐nickel layered oxide cathodes and silicon‐based composite anodes always suffer from unsatisfied cycle life and poor safety performance, especially at elevated temperatures. Electrode /electrolyte interphase regulation by functional additives is one of the most economic and efficacious s...

In situ polymerization technology is expected to empower the next generation high specific energy lithium batteries with high safety and excellent cycling performance. Nevertheless, the large‐scale commercial applications of most reported in situ polymer electrolytes are still full of challenges. Owing to the severe parasitic reactions caused by re...

Strategies towards inhibition of aluminum current collector corrosion in lithium batteries. Energy Mater 2023;3:300049. https://dx. Abstract Aluminum (Al) foil, serving as the predominant current collector for cathode materials in lithium batteries, is still unsatisfactory in meeting the increasing energy density demand of rechargeable energy stora...

Lithium difluoro(oxalato) borate (LiDFOB) has been widely investigated in lithium‐ion batteries (LIBs) owing to its advantageous thermal stability and excellent aluminum passivation property. However, LiDFOB tends to suffer from severe decomposition and generate a lot of gas species (e.g., CO2). Herein, a novel cyano‐functionalized lithium borate s...

Sulfonimide salts are of great interest for battery use thanks to their special properties including sufficient superior chemical/thermal stabilities, structural flexibility, etc. In particular, the hydrogen-containing sulfonimide (difluoromethanesulfonyl)(trifluoromethanesulfonyl)imide anion {[N(SO2CF2H) (SO2CF3)]⁻, DFTFSI⁻}, stands out owing to i...

Lithium‐ion batteries (LIBs) adopting layered oxide cathodes with high nickel content (Ni ≥ 0.9) always suffer from extremely poor cycle life, especially at elevated temperatures and higher charging cut‐off voltages. Adding small amounts of functional additives is considered to be one of the most economic and efficacious strategies to resolve this...

In lithium metal batteries (LMBs), the compatibility of Li anode and conventional lithium hexafluorophosphate-(LiPF6 ) carbonate electrolyte is poor owing to the severe parasitic reactions. Herein, to resolve this issue, a delicately designed additive of potassium perfluoropinacolatoborate (KFPB) is unprecedentedly synthesized. On the one hand, KFP...

The advent of Li-metal batteries has seen progress toward studies focused on the chemical modification of solid polymer electrolytes, involving tuning either polymer or Li salt properties to enhance the overall cell performance. This study encompasses chemically modifying simultaneously both polymer matrix and lithium salt by assessing ion coordina...

Rechargeable magnesium batteries (RMBs) have been considered as one of the most viable battery chemistries amongst the “post” lithium‐ion battery (LIB) technologies owing to their high volumetric capacity and the natural abundance of their key elements. The fundamental properties of Mg‐ion conducting electrolytes are of essence to regulate the over...

Since the oil crisis in the 1970s, the importance of rechargeable batteries has been noted by academia and industrial sectors. This becomes more prominent with increasing demand in e-mobility and...

Polymer electrolytes (PEs) with excellent flexibility, processability, and good contact with lithium metal (Li°) anodes have attracted substantial attention in both academic and industrial settings. However, conventional poly(ethylene oxide) (PEO)-based PEs suffer from a low lithium-ion transference number (TLi+), leading to a notorious concentrati...

Rechargeable lithium metal (Li0) batteries (RLMBs) are considered attractive for improving Li-ion batteries. Lithium bis(trifluoromethanesulfonyl)imide (LiTFSI) has been extensively used as a conducting salt for RLMBs due to its advantageous stability and innocuity. However, LiTFSI-based electrolytes are corrosive towards aluminium (Al0) current co...

Li-S batteries, as the most promising post Li-ion technology, have been intensively investigated for more than a decade. Although most previous studies have focused on liquid systems, solid electrolytes, particularly all-solid-state polymer electrolytes (ASSPEs) and quasi-solid-state polymer electrolyte (QSSPEs), are appealing for Li-S cells due to...

Lithium–sulfur batteries are attracting extensive attention for energy storage owing to their high theoretical energy density. However, their practical implementation is hindered because of inherent issues of the technology such as the shuttling effect of the polysulfide intermediates and the formation of dendritic lithium metal (Li⁰) deposits duri...

The ion interactions in two novel ionic liquids containing the asymmetric sulfonimide anion, (difluoromethanesulfonyl)(trifluoromethanesulfonyl)imide (DFTFSI), are investigated using ¹H–¹⁹F Heteronuclear Overhauser Effect Spectroscopy (HOESY) nuclear magnetic resonance (NMR) in combination with relaxation measurements, and molecular dynamics (MD) s...

Solid polymer electrolytes (SPEs) with both excellent processability and flexibility have been deemed as an auspicious alternative to develop safe solid-state lithium metal (Li°) batteries (SSLMBs). The electrochemical performance of SSLMBs is ultimately associated with the nature of the Li-salt anion and the widely used bis(trifluoromethanesulfony...

Introducing a small dose of electrolyte additive in solid polymer electrolytes (SPEs) is an appealing strategy for improving the quality of solid-electrolyte-interphase (SEI) layer formed on lithium metal (Li°) anode, thereby extending the cycling life of solid-state lithium metal batteries (SSLMBs). In this work, we report a new type of SPEs compr...

With the blooming of energy storage systems in e-mobility applications, the research activities of rechargeable lithium metal (Li°) batteries (LMBs) using solid-state electrolytes have been rekindled in recent years in light of stringent demands in terms of safety and energy density which are far beyond the capability of the contemporary lithium-io...

A novel single lithium‐ion conducting (SLIC) polymer electrolyte containing a weakly coordinating fluorine‐free polysalt is presented. The polysalt, lithium poly(4‐styrenesulfonyl)(dicyano)methide (LiPSDM), is conceived on the basis of a fluorine‐free green chemistry, and motivated by the highly performing non‐fluorinated lithium tricyanomethanide...

Solid‐state lithium metal (Li°) batteries (SSLMBs) are believed to be the most promising technologies to tackle the safety concerns and the insufficient energy density encountered in conventional Li‐ion batteries. Solid polymer electrolytes (SPEs) inherently own good processability and flexibility, enabling large‐scale preparation of SSLMBs. To min...

With higher nature abundance and lower production cost of sodium-based materials compared to lithium-based ones, sodium batteries have been arising as one of the most promising energy storage systems serving as complementary power sources to the popular lithium-ion batteries. Replacing conventional liquid electrolytes containing flammable liquid so...

In general, solid polymer electrolyte suffers from relatively low ionic conductivity and inferior oxidation stability. Herein, these issues can be effectively addressed by a supramolecular strategy based on the intermolecular interaction between a novel amorphous comb polymer of poly[propylene oxide-co-2-(2-methoxyethoxy)ethyl glycidyl ether] [P(PO...

Suppressing the mobility of anionic species in polymer electrolytes (PEs) is essential for mitigating the concentration gradient and internal cell polarization, and thereby improving the stability and cycle life of rechargeable alkali metal batteries. Now, an ether‐functionalized anion (EFA) is used as a counter‐charge in a lithium salt. As the sal...

In light of the exciting progress that has been made at the molecular level for the design of organic electrodes in the last 30 years, as well as the inherent advantages of organic batteries, an in-depth energy density assessment is urgently needed to address the technological feasibility of organic batteries. Herein, we report a comprehensive anal...

Highly reductive magnesium borohydride (Mg(BH4)2) is compatible with metallic Mg, making it a promising Mg-ion electrolyte for rechargeable Mg batteries. However, pure Mg(BH4)2 in ether-based solutions displays very limited solubility (0.01 M), low oxidative stability (<1.8 V vs. Mg), and nucleophilic characteristic, all of which precludes its prac...

A new salt of lithium trifluoro(perfluoro-tert-butyloxyl)borate (LiTFPFB) which possesses bulky fluoroalkoxyl functional group in borate anion has been synthesized for high energy lithium metal batteries. The presence of bulky fluoroalkoxyl group in borate anion of LiTFPFB can facilitate ion dissociation and in situ generate a protective film on th...

Due to its high theoretical energy density (2600 Wh kg −1), low cost, and environmental benignity, the lithium-sulfur (Li-S) battery is attracting strong interest among the various electrochemical energy storage systems. However, its practical application is seriously hampered by the so-called shuttle effect of the highly soluble polysulfides. Here...

Two-electron transfer chemisty based on earth-abundant Mg and S offer great possibilities of delivering higher energy density than current Li-ion technology. Developing non-nucleophilic electrolytes that reversibly and efficiently plate/strip Mg is believed to be a major obstacle for implementing such divalent battery technologies. In this work, we...

Developing high-voltage Mg-compatible electrolytes (>3.0 V vs Mg) still remains to be the biggest R&D challenge in the area of nonaqueous rechargeable Mg batteries. Here, the key design concepts toward exploring new boron-based Mg salts in a specific way of highlighting the implications of anions are proposed for the first time. The well-defined bo...