Graphene Role In Next Generation Lithium-Sulfur Batteries

Mr Inigo Charola, Business Development Director
Graphenea
Spain
 

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プレゼンテーション概要

Beyond today's incumbent technology, and among the many next-generation battery options, Lithium-sulfur is leading the way due to initially simpler manufacturing, lower costs, and good performance. Lithium-sulfur (Li-S) batteries use a metallic lithium anode and a sulfur-based cathode with various proposed electrolytes
 
Advantages:
• Specific energy is higher than Li-ion batteries
• Sulfur is cheap and abundant
 
Challenges:
• Cathode volume expansion and cracking is a safety concern
• Capacity fade limits cycle life to about 100 cycles for most developers, due to polysulfide side reactions
 
Graphene Opportunity
 
Graphene offers an opportunity as hosting in Li-S cathode: S/graphene composite.
 
In GO/sulfur composites, graphene plays a significant role in improving the electronic conductivity of sulfur, inhibiting the shuttle effect of soluble polysulfides and accommodating the large volume change of sulfur during the lithiation/delithiation processes.

講演者の経歴 (Inigo Charola)

Iñigo Charola is Business Development Director at Graphenea. He has an extensive experience in industrial related products at marketing and sales positions. He started his career at ASSA ABLOY, a global leader in security products, then as Sales and Marketing Director at an industrial processes private company. Before joining Graphenea he is been working in the Electronic Manufacturing Services industry as a Sales Director. He holds a Bachelor's Degree in Business Administration from University of Wales, a Master in Marketing and Sales Management from ESIC and an Executive MBA from Deusto Business School.

会社紹介 (Graphenea)

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Graphenea is the leading graphene producer. Graphenea supplies CVD graphene wafers and Graphene Oxide materials for industrial applications. Graphenea develops custom materials in joint development for specific applications.
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