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2 clusters · 6 sources · 22 days · First seen · Last updated

Japanese lithium-ion battery technology advancements

Overview

Japanese researchers have made advancements in lithium-ion battery technology, focusing on both electrolyte conductivity and the nanoscale visualization of electrochemical reactions.

Initial developments included the growth of millimeter-sized single crystals of a pyrochlore-type oxyfluoride electrolyte, LLNOF, at Nagoya University. This achieved a record bulk lithium-ion conductivity of 16.3 mS/cm at 25°C, driven by a mechanism where fluoride ions undergo local relaxation during lithium-ion movement.

Subsequent research involving the Chiba Institute of Technology, Nagoya University, Tohoku University, and Tokyo University of Science utilized Scanning Electrochemical Cell Microscopy (SECCM) with a 100 nm nanopipette to map reactions within composite electrodes. This technique allowed researchers to identify non-uniform reactions across graphite and silicon regions and map the formation of the Solid Electrolyte Interphase (SEI) film. Further efforts include using visible-light-transparent copper thin films for real-time operando observation to monitor lithium dendrite formation and gas generation.

Entities

Tohoku University · Chiba Institute of Technology · Nagoya University · National Institute of Advanced Industrial Science and Technology · Tokyo University of Science

Timeline

  1. 10 days ago

    [TECHNOLOGY] 2 sources
    Japanese researchers develop nanoscale mapping for lithium-ion battery reactions

    Japanese researchers have developed nanoscale mapping and real-time observation techniques to visualize non-uniform electrochemical reactions and SEI film formation in lithium-ion batteries.

  2. about 1 month ago

    [TECHNOLOGY] 5 sources
    Japanese researchers advance lithium-ion battery technology

    Japanese researchers have achieved breakthroughs in battery technology, including a world-record lithium-ion conductivity in solid electrolytes and nano-scale mapping of electrochemical reactions in composite's

Sources

dialogointercultural.co · eetimes.jp · insideevs.it · ithome.com · prtimes.jp · today.hit.edu.cn