Building Sodium Metal Battery with Polyisoprene-Based Air-Stable Single-Ion Gel Polymer Electrolyte

被引：8

作者：

Das, Sayan ^{[2
,3
]}

Jana, Somdeb ^{[1
]}

Orsagh, Martin ^{[1
]}

Bys, Katarzyna ^{[1
]}

Mishra, Jaisankar ^{[2
]}

Uchman, Mariusz ^{[1
]}

Adyam, Venimadhav ^{[2
]}

机构：

[1] Charles Charles Univ, Fac Sci, Dept Phys & Macromol Chem, Hlavova 2030, Czech Republic

[2] IIT Kharagpur, Cryogen Engn Ctr, Kharagpur 721302, W Bengal, India

[3] Purdue Univ, Davidson Sch Chem Engn, W Lafayette, IN 47906 USA

来源：

ACS APPLIED ENERGY MATERIALS | 2023年 / 6卷 / 10期

关键词：

Single-ion; Polyisoprene; Gel polymer electrolyte; Sodium battery; Air-stable electrolyte; MEMBRANES;

D O I：

10.1021/acsaem.3c00430

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The intrinsically safe, flexible, single-ion gel polymer electrolytes with a high transference number (0.75) have been developed by making the proper blending of a poly(vinylidene fluoride-co-hexafluoropropylene) (PVDF-HFP) copolymer and biocompatible poly((sulfamate-carboxylate) iso-prene) (PISC) when soaked in carbonate solvents. More interestingly, a steady conductivity of 1.81 x 10-5 S/cm is observed for 15 days under normal air exposure conditions (RH = 45%-61%, T = 25-31 degrees C). The sodium metal battery with an NVP cathode demonstrates charge/discharge cycling at 80 degrees C with 82% capacity retention at a C/5 rate after 45 cycles. To trigger cycling performance at room temperature, the gel is formed with a conventional liquid electrolyte and a capacity retention of 67.92% after 200 cycles (C/10 rate) even after air exposure to the electrolyte.

引用

页码：5113 / 5121

页数：9

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