Control of positive temperature coefficient effect of electrical resistivity on conductive polymer composites for producing battery electrode with fuse function

2015 Fiscal Year Final Research Report

• Project/Area Number: 26870671
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Polymer/Textile materials; Power engineering/Power conversion/Electric machinery
• Research Institution: Kanazawa Institute of Technology
• Principal Investigator: Kono Akihiko 金沢工業大学, 工学部, 講師 (40597689)
• Project Period (FY): 2014-04-01 – 2016-03-31
• Keywords: 導電性ポリマーコンポジット / ヒューズ / PTC特性 / 蓄電デバイス電極

Outline of Final Research Achievements

In this project, we have studied control of onset temperatures on positive temperature coefficient (PTC) effect of electrically resistivity for conductive polymer composites, characteristics control of fuse devices composed of composites, and mounting techniques of composites to electrodes of batteries. We have obtained following results. (1) In polyvinylidene fluoride / Ni particle (PVDF/Ni) composites, onset temperatures of PTC effect were controlled by Ni concentrations. (2) In fuse devices composed of PVDF/Ni composites, control techniques of both trip currents and trip times were developed. (3) For development of the three‐layer structure electrode constructed with the current collector / the composite layer (PTC effect layer) / the active material layer, the bond strength between the current collector and the composite layer was important.

Free Research Field

電気電子材料工学