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Crystals
Special Issues
Advanced Solid-State Batteries: Materials, Interfaces, Technologies, and Applications
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Advanced Solid-State Batteries: Materials, Interfaces, Technologies, and Applications

A special issue of Crystals (ISSN 2073-4352). This special issue belongs to the section "Materials for Energy Applications".

Deadline for manuscript submissions: 20 August 2025 | Viewed by 1419

Special Issue Editor

Dr. Zhijie Bi

E-Mail Website
Guest Editor
College of Physics, Qingdao University, Qingdao 266071 China
Interests: solid-state lithium batteries; interfaces; solid-state electrolytes; solvation; electrochromic materials and devices

Special Issue Information

Dear Colleagues,

In recent years, solid-state batteries (SSLBs) have attracted extensive attention due to their potential to address safety issues via the replacement of liquid electrolytes with non-flammable solid counterparts. Solid-state electrolytes with a high modulus are theoretically expected to inhibit dendrite growth and penetration. Furthermore, electrochemically stable solid-state electrolytes enable the integration of high-voltage cathodes with metal anodes. The lamination configuration allows for a bipolar structure and highly stacked unit cells. Therefore, solid-state batteries are also able to boost energy density. However, several critical issues associated with the development of SSLBs remain, including the preparation of high-stability solid-state electrolytes, the improvement of long-life cycling stability, advanced characterization, the research of interfacial chemistry, the actual realization of high energy densities, analyses of the failure mechanism, and compatibility with current industrial technology.

Therefore, this Special Issue, entitled “Advanced Solid-State Batteries: Materials, Interfaces, Technologies, and Applications”, aims to gather recent research, reviews and perspectives related to solid-state batteries.

Dr. Zhijie Bi
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Crystals is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2100 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • new materials (cathodes, electrolytes, and anodes) for solid-state batteries
  • high-performance solid-state alkali metals (Li, Na, K, Al, Mg, etc.) batteries
  • solid-state air batteries (Li-air, Li-O2, Na-air, Na-O2, Li-CO2, etc.)
  • new design, fabrication and manufacturing technologies
  • interfacial engineering strategies for solid-state batteries
  • advanced characterization of interfacial evolutions
  • reaction mechanisms of electrode materials
  • failure mechanisms of electrode/electrolyte interfaces
  • formation and solutions to dendrites issues
  • industrial progress of solid-state batteries

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Published Papers (2 papers)

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Research

21 pages, 6666 KiB  
Article
Hydrothermal Synthesis of Lithium Lanthanum Titanate
by Alexandru Okos, Ana-Maria Mocioiu, Dumitru Valentin Drăguț, Alexandru Cristian Matei and Cristian Bogdănescu
Crystals 2025, 15(3), 241; https://doi.org/10.3390/cryst15030241 - 28 Feb 2025
Viewed by 550
Abstract
Lithium lanthanum titanate (LLTO) is a very promising material due to its ability to conduct lithium ions. It has many potential applications in the field of lithium batteries and sensors. Typical synthesis methods include solid-state reaction and sol–gel synthesis. We report a novel [...] Read more.
Lithium lanthanum titanate (LLTO) is a very promising material due to its ability to conduct lithium ions. It has many potential applications in the field of lithium batteries and sensors. Typical synthesis methods include solid-state reaction and sol–gel synthesis. We report a novel solvothermal synthesis method that produces almost single-phase LLTO samples at significantly reduced costs. The samples thus obtained were investigated by X-ray diffraction (XRD), scanning electron microscopy (SEM), electrical impedance spectroscopy (EIS), and chemical analysis. The results obtained for the newly synthesized samples were compared with results obtained from samples prepared using the solid-state reaction method. The XRD data show the formation of orthorhombic LLTO for the solvothermal synthesis, tetragonal LLTO for the hydrothermal synthesis, and cubic LLTO for the solid-state reaction. Additionally, XRD showed that the solid-state reaction of LLTO is a multi-stage process in which intermediary compounds such as La2Ti2O7 are formed. The bulk ionic conductivity of the LLTO samples produced through the solvothermal and hydrothermal processes is estimated at 10−4 S/cm, and the grain boundary conductivity is estimated at 10−6 S/cm. Full article
(This article belongs to the Special Issue Advanced Solid-State Batteries: Materials, Interfaces, Technologies, and Applications)
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14 pages, 5729 KiB  
Article
Study on the Mechanism of Diffusion Stress Inducing Anode’s Failure for Automotive Lithium-Ion Battery
by Xing Hu, Kuo Yang and Jinrun Cheng
Crystals 2025, 15(2), 131; https://doi.org/10.3390/cryst15020131 - 25 Jan 2025
Viewed by 689
Abstract
Diffusion stress in the anode of an automotive lithium-ion battery could cause volume changes, particle rupture, and detachment of the electrode, which may lead to the failure of anode materials. In order to investigate the mechanism of diffusion stress in the anode of [...] Read more.
Diffusion stress in the anode of an automotive lithium-ion battery could cause volume changes, particle rupture, and detachment of the electrode, which may lead to the failure of anode materials. In order to investigate the mechanism of diffusion stress in the anode of the battery, this paper proposes an electrochemical–mechanical coupling model to simulate the stress and strain changes in the anode. And, SEM and X-ray diffraction are also carried out to examine the mechanism between diffusion stress and the damage to the anode microstructure. The results show that as the discharge C-rate increases, the intercalation and deintercalation of lithium ions in the anode become more active, leading to greater diffusion stress. This results in noticeable cracking in the anode material, with significant particle fragmentation, ultimately causing an increase in internal resistance. Full article
(This article belongs to the Special Issue Advanced Solid-State Batteries: Materials, Interfaces, Technologies, and Applications)
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