Automated Design of Li+-Conducting Polymer by Quantum-Inspired Annealing

Kan Hatakeyama-Sato*, Hiroki Adachi, Momoka Umeki, Takahiro Kashikawa, Koichi Kimura, Kenichi Oyaizu

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

Automated molecule design by computers is an essential topic in materials informatics. Still, generating practical structures is not easy because of the difficulty in treating material stability, synthetic difficulty, mechanical properties, and other miscellaneous parameters, often leading to the generation of junk molecules. The problem is tackled by introducing supervised/unsupervised machine learning and quantum-inspired annealing. This autonomous molecular design system can help experimental researchers discover practical materials more efficiently. Like the human design process, new molecules are explored based on knowledge of existing compounds. A new solid-state polymer electrolyte for lithium-ion batteries is designed and synthesized, giving a promising room temperature conductivity of 10−5 S cm−1 with reasonable thermal, chemical, and mechanical properties.

Original languageEnglish
JournalMacromolecular rapid communications
DOIs
Publication statusAccepted/In press - 2022

Keywords

  • materials informatics
  • quantum-annealing
  • solid polymer electrolytes

ASJC Scopus subject areas

  • Organic Chemistry
  • Polymers and Plastics
  • Materials Chemistry

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