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Composite cathodes for solid‐state lithium batteries: “catholytes” the underrated giants

From National Research Council Canada

Composite cathodes for solid‐state lithium batteries: “catholytes” the underrated giants - Transcript

Slide 1

Composite Cathodes to Improve the Performance of Solid-State Batteries

Hilal Al-Salih, Mohamed Seif Eddine Houache, Elena A. Baranova, and Yaser Abu-Lebdeh

Wiley

Advanced Enery & Sustainability Research

Open Access

Composite Cathodes for Solid-State Lithium Batteries: "Catholytes" the Underrated Giants

DOI: 10.1002/aesr.202200032

Slide 2

Solid-state lithium metal batteries promise to be safe, lightweight, inexpensive, and offer high energy density...

Slide 3

...making them ideal for high energy/power applications such as in electric vehicles.

Slide 4

These batteries use a solid electrolyte instead of the conventional liquid electrolyte...

Slide 5

...as the lithium ions move between the battery’s electrodes.

Slide 6

However, solid electrolytes do not permeate the battery’s cathode like liquid electrolytes.

The resistance at the electrode-electrolyte interface...

Slide 7

...impedes the movement of lithium ions...

...and limits the battery’s performance.

Slide 8

One solution to establish continuous pathways for the lithium ions is to use “catholytes”...

Slide 9

...which are solid ionic conductors that are integrated within the cathode to form what is termed ‘composite cathodes’.

Slide 10

Researchers from Canada conducted a review of the types of catholytes, their processing techniques, and their effect on battery performance.

Slide 11

The characteristics of composite cathodes differ based on the choice of material, battery chemistry, and the microstructural properties.

Slide 12

The performance of composite cathodes is quantified by their electronic and ionic conductivities.

Slide 13

Improving the interparticle contact and minimizing the porosity of composite cathodes...

Slide 14

...will result in better lithium ion transport and battery performance.

Slide 15

Improving the design of composite cathodes can solve one of the most pressing issues of solid-state batteries...

Slide 16 and 17

...and can help industries transition from batteries containing liquid electrolytes to safer, long-lasting, more energy-dense solid-state batteries.

Slide 18

Composite Cathodes for Solid-State Lithium Batteries: "Catholytes" the Underrated Giants

Corresponding author: Yaser Abu-Lebdeh

Email Id: Yaser.Abu-Lebdeh@nrc-cnrc.gc.ca

Wiley

Advanced Enery & Sustainability Research

Open Access

Composite Cathodes for Solid-State Lithium Batteries: "Catholytes" the Underrated Giants

DOI: 10.1002/aesr.202200032

Slide 19

Wiley

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DOIResolve DOI: https://doi.org/10.1002/aesr.202200032
AuthorSearch for: 1ORCID identifier: https://orcid.org/0000-0002-1928-2330; Search for: 1; Search for: 2ORCID identifier: https://orcid.org/0000-0001-5993-2740; Search for: 1ORCID identifier: https://orcid.org/0000-0001-8936-4238
Affiliation
  1. National Research Council of Canada. Energy, Mining and Environment
  2. University of Ottawa. Department of Chemical and Biological Engineering Centre for Catalysis Research and Innovation
FunderSearch for: Natural Resources Canada. Office of Energy Research and Development
FormatText, Article
Abstract
To expedite the large-scale adoption of electric vehicles (EVs), increasing the gravimetric energy density of batteries to at least 250 Wh kg⁻¹ while sustaining a maximum cost of $120 kWh⁻¹ is of utmost importance. Solid-state lithium batteries are broadly accepted as promising candidates for application in the next generation of EVs as they promise safer and higher-energy-density batteries. Nonetheless, their development is impeded by many challenges, including the resistive electrode–electrolyte interface originating from the removal of the liquid electrolyte that normally permeates through the porous cathode and insures efficient ionic conductivity through the cell. One way to tackle this challenge is by formulating composite cathodes (CCs) that employ solid ionic conductors as “catholytes” in their structure. Herein, it is attempted to shed light on this less studied and poorly understood approach. The different classes of catholytes that have been reported in literature alongside the most common fabrication techniques used to prepare CCs are presented. Next, the interplay between the microstructure and design parameters of CCs with the electrochemical performance of solid-state batteries (SSBs) and the techniques used to measure their transport properties is well documented. Finally, general guidelines surrounding CC research are outlined.
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PublisherWiley
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  • Advanced Energy and Sustainability Research 3, no. 8, 2200032 (12 June 2022): 1–15.
LanguageEnglish
Peer reviewedYes
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Record identifier75bbf3b1-a68a-40da-bbf5-0bfeae10ad1d
Record created2022-11-15
Record modified2022-11-16
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