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author:

刘景东 (刘景东.) [1] | 王文继 (王文继.) [2] | 易心正 (易心正.) [3]

Indexed by:

CQVIP PKU CSCD

Abstract:

应用交流阻抗谱研究以聚甲基丙烯酸一聚甲基丙烯酸锂-甘油(GPE)作为锂水电池正极的体系,根据等效电路计算,发现升高温度和增加水含量均可提高体系的电导率.该体系导电过程类似于聚合物浓溶液,水分能降低聚合物的玻璃化温度,电解过程相当于电解水。分解电压1.50v.使用GPE组装室温全固态锂水电池,测定了该电池在恒负载(5.2kΩ)下放电曲线。发现当以石墨正极作集电极时,该电池能持续放电2h.使放电电压和放电电流下降的因素是:锂与GPE内水分反应生成的膜逐渐增厚,正极反应生成氢气,GPE内水份的扩散速率.

Keyword:

交流阻抗谱 含水凝胶电解质 电化学特性 聚甲基丙烯酸-聚甲基丙烯酸锂-甘油 锂水电池

Community:

  • [ 1 ] 福州大学化学化工学院,福建福州350002

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Source :

电化学

ISSN: 1006-3471

Year: 2004

Issue: 1

Volume: 10

Page: 98-101

Cited Count:

WoS CC Cited Count:

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count: -1

30 Days PV: 1

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