Electrical Characterization of Li-Ion Battery Modules for Second-Life Applications

被引：13

作者：

Kehl, Daniel ^{[1
]}

Jennert, Torben ^{[1
]}

Lienesch, Frank ^{[2
]}

Kurrat, Michael ^{[1
]}

机构：

[1] Tech Univ Carolo Wilhelmina Braunschweig, Elenia Inst High Voltage Technol & Power Syst, Schleinitz St 23, D-38106 Braunschweig, Germany

[2] Phys Tech Bundesanstalt, Bundesallee 100, D-38116 Braunschweig, Germany

来源：

BATTERIES-BASEL | 2021年 / 7卷 / 02期

关键词：

modules; characterization; aging; current interrupt; electrochemical impedance spectroscopy; second use; second life; lithium-ion battery; 2ND LIFE; LITHIUM; IMPEDANCE; TRANSPORTATION; CAPACITY; STATES;

D O I：

10.3390/batteries7020032

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

The reuse and repurposing of lithium-ion batteries for transportation in stationary energy systems improve the economic value of batteries. A precise suitability test at the beginning of the second life is therefore necessary. Common methods such as electrochemical impedance spectroscopy (EIS) and current interrupt (CI) analysis, as well as capacity analysis, can be used for testing. In this paper, these methods are studied from the aspects of test duration, sensitivity and acquisition costs of the measuring instruments. For this purpose, tests are carried out on battery modules, which were used for transportation. It is shown that subtle differences are better detected with EIS and less accurately with the CI method. The test duration is fastest with the CI method, followed by EIS and the capacity test. Strongly aged modules are reliably detected with all methods.

引用

页数：15

共 23 条

[1] Transportation Safety of Lithium Iron Phosphate Batteries - A Feasibility Study of Storing at Very Low States of Charge [J].