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Weak Acid Solutions

Weak Acid Solutions

Few compounds act as strong acids. A far greater number of compounds behave as weak acids and only partially react with water, leaving a large majority of dissolved molecules in their original form and generating a relatively small amount of hydronium ions. Weak acids are commonly encountered in nature, being the substances partly responsible for the tangy taste of citrus fruits, the stinging sensation of insect bites, and the unpleasant smells associated with body odor. A familiar example of a...

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Updated: Nov 1, 2025

Solid-state Graft Copolymer Electrolytes for Lithium Battery Applications

Solid-state Graft Copolymer Electrolytes for Lithium Battery Applications

Published on: August 12, 2013

A study on Li_0.33La_0.55TiO₃ solid electrolyte with high ionic conductivity and its application in flexible

Feihu Tan¹, Hua An¹, Ning Li¹

¹Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Physics and Optoelectronic Engineering Shenzhen University, Shenzhen 518060, China. zcpeng@szu.edu.cn.

|June 25, 2021

Summary

Flexible solid-state batteries using a lithium lanthanum titanium oxide (LLTO) electrolyte show improved ionic conductivity and stability. These batteries maintain high capacity after 500 cycles and bending, making them suitable for wearable energy sources.

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Synthesis of Ionic Liquid Based Electrolytes, Assembly of Li-ion Batteries, and Measurements of Performance at High Temperature

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Synthesis of Ionic Liquid Based Electrolytes, Assembly of Li-ion Batteries, and Measurements of Performance at High Temperature

Synthesis of Ionic Liquid Based Electrolytes, Assembly of Li-ion Batteries, and Measurements of Performance at High Temperature

Published on: December 20, 2016

Area of Science:

Materials Science
Electrochemistry
Energy Storage

Background:

Flexible all-solid-state batteries offer enhanced safety and portability for wearable devices.
Improving ionic conductivity of solid-state electrolytes is crucial for battery performance.
Electrode volume changes during cycling lead to battery failure.

Purpose of the Study:

To prepare and characterize lithium lanthanum titanium oxide (LLTO) solid-state electrolytes.
To investigate the impact of heat treatment on LLTO ionic conductivity.
To develop stable and high-performance flexible solid-state batteries for energy storage applications.

Main Methods:

Magnetron sputtering was used to prepare crystallized and amorphous LLTO electrolytes.
Heat treatment was applied to optimize LLTO ionic conductivity.
LiNi0.5Co0.3Mn0.2O2 (NCM) cathodes and Li4Ti5O12 (LTO) anodes were employed due to their low volume change rates.

Main Results:

The LLTO electrolyte achieved a maximum ionic conductivity of 9.44 × 10-5 S cm-1 at 140 °C.
A single-layer NCM/LLTO/LTO battery exhibited an output voltage of 2-2.4 V, while a two-layer configuration reached 4.8 V.
The battery demonstrated excellent cycle stability, retaining 89.2% of its initial capacity after 500 cycles and bending.

Conclusions:

Optimized LLTO electrolytes enhance the performance of flexible solid-state batteries.
The use of low-volume-change electrodes (NCM and LTO) significantly improves cycle life.
These flexible batteries show promise for next-generation wearable energy storage solutions.