Related Experiment Video
Updated: May 12, 2026
07:20
Screening of Coatings for an All-Solid-State Battery Using In Situ Transmission Electron Microscopy
Published on: January 20, 2023
Perspective on Material Design and Interface Engineering toward Low-Stack-Pressure All-Solid-State Lithium Batteries
Shenghan Gao1,2, Wen-Peng Wang1,2, Li-Jun Wan1,2
1CAS Key Laboratory of Molecular Nanostructure and Nanotechnology, Beijing National Laboratory For Molecular Sciences (BNLMS), Institute of Chemistry, Chinese Academy of Sciences (CAS), Beijing, P. R. China.
Advanced Materials (Deerfield Beach, Fla.)
|May 11, 2026
Summary
All-solid-state lithium batteries (ASSLBs) need high pressure for good performance. This review explores solutions for low-pressure ASSLBs, focusing on materials and interfaces for better energy storage.
Area of Science:
- Materials Science
- Electrochemistry
- Energy Storage
Background:
- All-solid-state lithium batteries (ASSLBs) offer high energy density and safety.
- Poor solid-solid interfacial contact limits ASSLB cyclability and requires high stack pressure.
- Current limitations hinder the commercialization of ASSLBs.
Purpose of the Study:
- To provide a fundamental understanding of stack pressure's role in ASSLBs.
- To analyze challenges in achieving optimal performance under low-stack-pressure conditions.
- To summarize recent advances in reducing high-stack-pressure demands.
Main Methods:
- Review of existing literature on ASSLB stack pressure.
- Analysis of material design (solid electrolyte/active electrode) for low-pressure operation.
- Examination of interface engineering strategies.
Main Results:
- High stack pressure is often necessary due to interfacial resistance.
- Material-centered solutions and interface engineering are key to reducing pressure requirements.
- Progress has been made in designing components for low-pressure ASSLBs.
Conclusions:
- Achieving low-stack-pressure ASSLBs is crucial for commercialization.
- Future breakthroughs require continued focus on material design and interface engineering.
- Material-centered solutions hold promise for advancing battery technology.
Related Concept Videos
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...
01:30The Electrical Double Layer
In the region where two bulk phases meet, an intricate electric charge distribution arises due to charge transfer, ion adsorption, molecular orientation, and charge distortion. This complex distribution is commonly referred to as the electrical double layer.When a solid electrode interfaces with ions in an electrolyte solution, the speed of electron transfer dictates the rates of oxidation and reduction. The electrode acquires a charge through the escape of atoms into the solution as cations or...
01:28Electrochemical Cells
Electrochemical cells are systems that convert chemical energy into electrical energy or use electrical energy to drive chemical reactions. They consist of two electrodes in contact with an electrolyte, where redox reactions enable electron transfer. Most electrochemical cells include two half-cells connected by an external wire for electron flow and a salt bridge for ion flow. The salt bridge contains an electrolyte solution and maintains charge neutrality by allowing ions—not electrons—to...
01:14Design Example: Resistive Touchscreen
A device engineer plays a crucial role in designing user interfaces for mobile devices. One such interface is the resistive touchscreen, which fundamentally consists of two metallic layers: a flexible upper layer and a rigid lower layer, separated by a narrow gap. The high resistance between these two layers is a key characteristic of this design.
When a user touches the screen, the two layers make contact at a specific point known as the touchpoint. This contact reduces the resistance between...
When a user touches the screen, the two layers make contact at a specific point known as the touchpoint. This contact reduces the resistance between...
01:24Electrochemical Systems
Electrochemical systems provide a fascinating insight into the dynamic interplay of charged species within various phases. One notable example is the interaction between a membrane permeable to K⁺ ions but not to Cl⁻ ions, separating an aqueous KCl solution from pure water. As K⁺ ions diffuse through the membrane, they generate net charges on each phase, leading to a potential difference between them.Similarly, when a piece of Zn is immersed in an aqueous ZnSO₄ solution, the Zn metal, composed...