电池原位红外附件

电化学原位红外光谱分析是红外分析技术的一个重要分支，能够定性分析电催化(如CO₂电还原等)反应、各种类型电池(如锂离子、锂硫电池等)充放电过程中电极表面的产物或中间产物随时间(电位)不断变化的趋势，是研究电化学反应机理以及电化学反应动力学的重要手段之一。

构造原理：

(1)两电极体系，专为电池体系设计。

(2)电化学反应池气密性良好，可通入反应气体。

(3)金刚石晶体，适用性广。

图2：基本原理示意图

附件组成

(1)红外光谱仪主机适配底板，适配主流红外光谱仪。

(2)光路系统。

(3)PEEK材质气密性电化学池。

(4)O型圈密封件。

主要特点

(1)优化的光路系统，光通量大。

(2)电化学池密封性能好，可通入反应气体。

(3)金刚石晶体光通量大。

(4)独特的电极，电解液信号采集调节技术。

(5)可实现电化学红外质谱三联用。

(6)金刚石晶体板和电化学池拆卸方便，可方便在手套箱中组装电池。

(7)提供现场技术服务。

主要技术参数

1.光谱范围：250/525-4000 cm^-1

2.晶体种类：金刚石晶体

3.电化学池：PEEK材质，两电极体系，气密性池体，可方便在手套箱中装卸电池，设有进气口和出气口，可实现各类电池充放电过程中红外光谱的采集。

4.温控电化学池，温控范围：RT-100℃，温控精度0.1℃。

5.电极与金刚石晶体距离调节系统,带刻度微调功能，重现性好，以实现观测电解液溶剂化或电极表面物种变化。

6.电化学池可实现电化学质谱仪与红外三联用，提供多联用技术方案。

7.反射次数:单次反射。

8.反射类型:外反射。

9.光路反射系统适配主流品牌红外光谱仪，提供光谱仪适配底板，光路系统方便安放或取出光谱仪样品仓。

应用案例

锂离子电池  Chem. Mater. 2020, 32, 8, 3405–3413

锂离子电池 ACS Energy Lett. 2020, 5, 1022−1031

锌离子电池 Adv. Funct. Mater. 2020, 2003890

锂离子电池  Joule 2022, 6, 399–417

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