4.6 Article

Designing Ceramic/Polymer Composite as Highly Ionic Conductive Solid-State Electrolytes

Journal

BATTERIES & SUPERCAPS
Volume 4, Issue 1, Pages 39-59

Publisher

WILEY-V C H VERLAG GMBH
DOI: 10.1002/batt.202000149

Keywords

all-solid-state lithium batteries; solid-state electrolyte; ceramic; polymer composite electrolyte; ionic conductivity; interface engineering

Funding

  1. Australian Research Council Discovery Projects of Australia [DP160102627, DP1701048343]
  2. Shenzhen Peacock Plan of China [KQTD2016112915051055]
  3. 111 Project of China Three Gorges University [D20015]

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This work reviews recent progress in the development of ceramic/polymer composite electrolytes (C/PCEs) and explores the relationship between the structures of C/PCEs and the performance of resultant SSEs. General design principles for future SSEs based on C/PCEs are also summarized in this review.
The design and fabrication of solid-state electrolytes (SSEs) with high ionic conductivity is the most crucial obstacle for all-solid-state lithium batteries (ASSLBs). However, though polymer SSEs have the advantages of effective interfacial contact, polymer ASSLBs have not been able to deliver performance comparable to conventional lithium-ion batteries (LIBs) due to slow ion transport within the polymer framework. In contrast, the high inherent ionic conductivity of ceramic SSEs is limited by the poor electrolyte/electrode interfacial contact. Therefore, the concept of ceramic/polymer composite electrolytes (C/PCEs) was proposed to combine the advantages of these two electrolytes and simultaneously overcome their weaknesses. This work reviews the recent progress in C/PCEs development according to the morphology of the ceramic components in C/PCEs. In this review, we investigate the inherent relationship between the structures of C/PCEs and the performance of the resultant SSEs, and subsequently conclude some general C/PCE design principles for future SSEs.

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