电能表用锂亚硫酰氯电池加速退化试验及可靠性评价

doi:10.16628/j.cnki.2095-8188.2021.10.005

电器与能效管理技术 ›› 2021, Vol. 0 ›› Issue (10): 28-32.doi: 10.16628/j.cnki.2095-8188.2021.10.005

电能表用锂亚硫酰氯电池加速退化试验及可靠性评价

孙祺森, 李浩翔, 叶雪荣, 翟国富

哈尔滨工业大学电气工程及其自动化, 黑龙江哈尔滨 150001

收稿日期:2021-06-11 出版日期:2021-10-30 发布日期:2022-01-25
作者简介:孙祺森(1995—),男,博士研究生,研究方向为电子可靠性。|李浩翔(1999—),男,硕士研究生,研究方向为智能电能表可靠性。|叶雪荣(1981—),男,教授,研究方向为电器与电子可靠性。

Accelerated Degradation Test and Reliability Evaluation of Lithium Thionyl Chloride Battery for Smart Electricity Meter

SUN Qisen, LI Haoxiang, YE Xuerong, ZHAI Guofu

School of Electrical Engineering and Automation,Harbin Institute of Technology,Harbin 150001,China

Received:2021-06-11 Online:2021-10-30 Published:2022-01-25

摘要/Abstract

摘要：

锂亚硫酰氯电池作为仪表等设备的关键备用电源,其容量状态直接影响设备及系统的运行可靠性。针对智能电表实际工况下锂亚硫酰氯电池寿命及可靠性难以评估或评估精度较低的问题,提出一种加速退化试验、容量退化建模及电池可靠性评价方法。所使用的半失效物理退化模型可以准确描述容量退化趋势,结合电池容量分散性,可以对锂亚硫酰氯电池进行可靠性评价,为预测实际工况下电池使用寿命提供参考。

关键词: 锂亚硫酰氯电池, 加速退化试验, 退化建模, 可靠性评价

Abstract:

Lithium thionyl chloride batteries are used as key backup power sources for instruments and other equipment,and their capacity status directly affects the operational reliability of equipment and systems.Aiming at the problem that the life and reliability of lithium thionyl chloride batteries are difficult to evaluate or the evaluation accuracy is low under actual working conditions of smart meters,this paper proposes an accelerated degradation test,capacity degradation modeling,and battery reliability evaluation methods.The semi-failure physical degradation model used in this paper can accurately describe the capacity degradation trend,combined with battery capacity dispersion,can evaluate the reliability of lithium thionyl chloride batteries,and provide a reference for predicting battery life under actual operating conditions.

Key words: lithium thionyl chloride battery, accelerated degradation test, degradation modeling, reliability evaluation

中图分类号:

TM933

孙祺森, 李浩翔, 叶雪荣, 翟国富. 电能表用锂亚硫酰氯电池加速退化试验及可靠性评价[J]. 电器与能效管理技术, 2021, 0(10): 28-32.

SUN Qisen, LI Haoxiang, YE Xuerong, ZHAI Guofu. Accelerated Degradation Test and Reliability Evaluation of Lithium Thionyl Chloride Battery for Smart Electricity Meter[J]. LOW VOLTAGE APPARATUS, 2021, 0(10): 28-32.

图/表 9

图1

图2

图3

表1

表2

图4

图5

表3

模型参数化结果

参数值	方程	R²	参数	拟合值
容量	$Ca p act C ini$ =1+ $C T T - T 0 ΔT$ ·C_at⁰^.⁵	0.950 4	C_T	1.418 9
容量	$Ca p act C ini$ =1+ $C T T - T 0 ΔT$ ·C_at⁰^.⁵	0.950 4	C_a	-0.039 1
容量	$Ca p act C ini$ =1+ $C T T - T 0 ΔT$ ·C_at^b	0.956 0	C_T	1.402 6
			C_a	-0.046 9
			b	0.440 0

表3

图6

参考文献 15

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参数	数值
VCC休眠功耗电流/μA	8
VBAT供电功耗电流/μA	2
瞬间温补功耗电流/μA	300
温度补偿周期(默认)/s	10
每次温补时间/ms	2

温度/℃	测试间隔/周
27(室温)	4
45	2
56	1
74	1

电能表用锂亚硫酰氯电池加速退化试验及可靠性评价

Accelerated Degradation Test and Reliability Evaluation of Lithium Thionyl Chloride Battery for Smart Electricity Meter

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