Title:
ACRYLONITRILE-BASED FIBER FOR ELECTRODES, ELECTRODE CONTAINING THIS FIBER, AND LEAD-ACID BATTERY HAVING THIS ELECTRODE
Document Type and Number:
WIPO Patent Application WO/2016/158753
Kind Code:
A1
Abstract:
[Problem] Conventionally, studies have been undertaken into using fibers in which a monomer having a hydrophilic group is graft copolymerized on the surface of a thermoplastic synthetic resin, such fibers serving as a short fiber for reinforcement to be included in the active material layer of electrodes, in order to increase the utilization efficiency of the active material in the electrode and improve the battery capacity. However, in these methods, there was a problem in that, with the passage of time, the hydrophilic polymer layer tended to be preferentially decomposed by contact with acid and thus the battery capacity decreased. The purpose of the present invention is to provide an acrylonitrile-based fiber for electrodes that has excellent acid resistance, such that there are few decomposition issues, even with long-term use, and to provide an electrode containing the fiber and a lead-acid battery having the electrode. [Solution] The present invention provides an acrylonitrile-based fiber for electrodes, wherein a hydrophilic component is contained within the fiber and the volume resistivity is 1 × 109 Ω · cm or less.
Inventors:
YAMASHITA OSAMU (JP)
SAKAGUCHI KATSUJI (JP)
SAKAGUCHI KATSUJI (JP)
Application Number:
PCT/JP2016/059630
Publication Date:
October 06, 2016
Filing Date:
March 25, 2016
Export Citation:
Assignee:
JAPAN EXLAN CO LTD (JP)
International Classes:
H01M4/14; D01F6/54; H01M4/62
Foreign References:
| JP2006004688A | 2006-01-05 | |||
| JPH10241673A | 1998-09-11 |
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