Related Experiment Video
Updated: Jun 12, 2026
08:07
Ultrahigh Density Array of Vertically Aligned Small-molecular Organic Nanowires on Arbitrary Substrates
Published on: June 18, 2013
15.0K
Multifunctional Subnanowires Modulating In Situ Polymerization for High-Voltage Solid-State Batteries.
Haoran Xu1, Hong Zhang1, Wei Peng1
1State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, China.
ACS Applied Materials & Interfaces
|May 30, 2025
Summary
Subnanowires enhance poly(1,3-dioxolane) (PDOL) electrolytes for lithium metal batteries (LMBs). This strategy improves oxidative stability, enabling high-voltage applications and better battery performance.
Area of Science:
- Materials Science
- Electrochemistry
- Polymer Chemistry
Background:
- In situ polymerized poly(1,3-dioxolane) (PDOL) electrolytes offer good interfacial contact but suffer from limited oxidative stability, restricting their use with high-voltage cathodes in lithium metal batteries (LMBs).
- Developing electrolytes with enhanced oxidative stability is crucial for advancing high-performance LMBs.
Purpose of the Study:
- To improve the oxidative stability of in situ polymerized PDOL electrolytes by modulating their molecular weight distribution (MWD).
- To introduce a novel strategy using multifunctional subnanowires (SNWs) to control PDOL polymerization and enhance electrolyte performance.
Main Methods:
- Utilized multifunctional subnanowires (SNWs) to promote and regulate the ring-opening polymerization of 1,3-dioxolane (DOL).
- Leveraged oxygen vacancies (Ov) and protonated oleylamine (PO) on SNWs to enhance monomer conversion, control polymerization speed, and facilitate lithium salt dissociation.
- Characterized the resulting PDOL electrolytes for their MWD, oxidative stability, and ionic conductivity.
Main Results:
- Achieved a narrow MWD of 1.42 in PDOL electrolytes through the SNW-induced polymerization strategy.
- Demonstrated superior oxidative stability exceeding 5.1 V for the modified PDOL electrolytes.
- Obtained a high lithium-ion transference number of 0.81, indicating efficient ion transport.
- NCM811||Li cells using these electrolytes maintained stable operation for 100 cycles at 4.5 V with 89.2% capacity retention.
Conclusions:
- The molecular weight modulation strategy using SNWs effectively enhances the oxidative stability of in situ polymerized PDOL electrolytes.
- This approach provides a unique pathway for developing advanced electrolytes for high-voltage lithium metal batteries.
- The findings offer significant potential for the next generation of high-performance and stable energy storage devices.
Related Concept Videos
02:47Voltaic/Galvanic Cells
Spontaneous Chemical Reactions
Spontaneous redox reactions occur abundantly in nature. The chemical reaction occurring in a disposable AA battery powering our remote controls is one such example of a spontaneous redox reaction. Another example is the immersion of coiled copper wire into an aqueous silver nitrate solution. The reaction shows a gradual, visually impressive color change from colorless to bright blue and the formation of a grey precipitate on the copper wire. In this experiment,...
Spontaneous redox reactions occur abundantly in nature. The chemical reaction occurring in a disposable AA battery powering our remote controls is one such example of a spontaneous redox reaction. Another example is the immersion of coiled copper wire into an aqueous silver nitrate solution. The reaction shows a gradual, visually impressive color change from colorless to bright blue and the formation of a grey precipitate on the copper wire. In this experiment,...
03:12Batteries and Fuel Cells
A battery is a galvanic cell that is used as a source of electrical power for specific applications. Modern batteries exist in a multitude of forms to accommodate various applications, from tiny button batteries such as those that power wristwatches to the very large batteries used to supply backup energy to municipal power grids. Some batteries are designed for single-use applications and cannot be recharged (primary cells), while others are based on conveniently reversible cell reactions that...
01:21DC Battery
A conductor needs to be a component of a path that creates a closed loop or full circuit to have a continuous current flowing through it. A current starts to flow if an electric field is created inside an isolated conductor that is not part of a full circuit. The conductor quickly develops a net positive charge at one end and a net negative charge at the other. These charges generate an electric field opposite the direction of the applied electric field, which reduces the current. Eventually,...