An Overview of Fiber-Shaped Batteries with a Focus on Multifunctionality, Scalability, and Technical Difficulties

Area of Science:

• Materials Science
• Electrochemistry
• Energy Storage

Background:

• Wearable electronics demand advanced energy storage solutions.
• Fiber-shaped batteries provide unique advantages like flexibility and miniaturization for wearable applications.
• Current research focuses on multifunctional, scalable, and integrable fiber-based energy systems.

Purpose of the Study:

• To summarize design principles and device performance of fiber-shaped batteries.
• To highlight multifunctional devices with environmental adaptability and stimuli-responsive properties.
• To discuss scalability towards energy textiles and address real-world application challenges.

Main Methods:

• Review of design principles including electrode preparation and battery assembly.
• Analysis of electrochemical and mechanical properties of various fiber-shaped battery systems (Li-based, Zn-based, etc.).
• Focus on multifunctional and scalable device development.

Main Results:

• Fiber-shaped batteries exhibit excellent flexibility, miniaturization, and textile compatibility.
• Advances include multifunctional systems with environmental adaptability and stimuli-responsive characteristics.
• Scalability towards energy textiles is a key research theme.

Conclusions:

• Fiber-shaped batteries are promising for wearable electronics, but challenges in encapsulation, internal resistance, and durability remain.
• Further research should focus on overcoming technical hurdles for practical wearable applications.
• Development of multifunctional, scalable, and robust fiber batteries is crucial for future energy textiles.