Fault diagnosis and quantitative analysis of micro-short circuits for lithium-ion batteries in battery packs

2018 ◽  
Vol 395 ◽  
pp. 358-368 ◽  
Author(s):  
Xiangdong Kong ◽  
Yuejiu Zheng ◽  
Minggao Ouyang ◽  
Languang Lu ◽  
Jianqiu Li ◽  
...  
Keyword(s):  
Quantitative Analysis ◽  
Fault Diagnosis ◽  
Lithium Ion Batteries ◽  
Lithium Ion ◽  
Battery Packs ◽  
Short Circuits

scholarly journals A Hybrid Signal-Based Fault Diagnosis Method for Lithium-Ion Batteries in Electric Vehicles

IEEE Access ◽  
2021 ◽  
Vol 9 ◽  
pp. 19175-19186
Author(s):  
Jiuchun Jiang ◽  
Xinwei Cong ◽  
Shuowei Li ◽  
Caiping Zhang ◽  
Weige Zhang ◽  
...  
Keyword(s):  
Fault Diagnosis ◽  
Lithium Ion Batteries ◽  
Electric Vehicles ◽  
Lithium Ion ◽  
Diagnosis Method

Incipient short-circuit fault diagnosis of lithium-ion batteries

2020 ◽  
Vol 31 ◽  
pp. 101658 ◽  
Author(s):  
Jianwen Meng ◽  
Moussa Boukhnifer ◽  
Claude Delpha ◽  
Demba Diallo
Keyword(s):  
Fault Diagnosis ◽  
Lithium Ion Batteries ◽  
Short Circuit ◽  
Lithium Ion ◽  
Circuit Fault Diagnosis ◽  
Short Circuit Fault

scholarly journals SOH Estimation of Lithium-Ion Battery Pack Based on Integrated State Information from Cells

2020 ◽  
Vol 10 (19) ◽  
pp. 6637
Author(s):  
Xiaohong Wang ◽  
Wenhui Fan ◽  
Shixiang Li ◽  
Xinjun Li ◽  
Lizhi Wang
Keyword(s):  
Lithium Ion Batteries ◽  
Lithium Ion ◽  
Battery Pack ◽  
Accurate Estimation ◽  
The Novel ◽  
State Information ◽  
Battery Packs ◽  
New Energy ◽  
Interactive Relationship ◽  
Novel Method

Accompanied by the development of new energy resources, lithium-ion batteries have been used widely in various fields. Due to the significant influence of system performance, much attention has been paid to the accurate estimation and prediction about health status of lithium-ion batteries. In a battery pack, the structure connection causes sophisticated interaction between cells, or between the cells and the pack. Therefore, the degradation of any cell is the result of the deterioration of conjoint cells, and a rapid degradation speed for any individual cell can lead to the accelerated degradation of others beyond expectation, which is one of the primary reasons why the State of Health and life cannot be calculated precisely. To solve this problem, a novel method based on integrated state information from cells has been proposed to estimate status of packs, considering about the degradation effect that cells contribute to the corresponding pack. Using this method, the interactive relationship was described in the form of a neural network in order to mine the effect from the inter-degradation between cells. It was proven that the novel method had better performance than a method based only on the degradation indicators from battery packs.

scholarly journals Electric Enabler

2017 ◽  
Vol 139 (12) ◽  
pp. 39-39
Author(s):  
John Kosowatz ◽  
Thomas Romer
Keyword(s):  
Production Process ◽  
Lithium Ion Batteries ◽  
Electric Vehicles ◽  
Lithium Ion ◽  
Battery Pack ◽  
Automated System ◽  
Price Point ◽  
Battery Packs ◽  
Full Capacity ◽  
Safety Systems

This article explains how Tesla batteries are making electric vehicles (EVs) affordable for customers. Tesla’s battery revolution began when CEO Elon Musk declared that it would sell a mass-market EV for just $35,000. To produce battery packs cheaply enough to reach that price point, Tesla reengineered not only the production process, but also the factory in which the batteries are made. The Reno, Nev., Gigafactory is not yet operating at full capacity, but it is expected to produce 35 GW per year of lithium-ion batteries, about double the present-day global production. Tesla partnered with Panasonic to revamp the production process, and ended up redesigning the chemistry of the battery itself. The standard “18-650” cell format used thousands of less-expensive commodity cells, similar to lithium-ion batteries used in laptop computers. Tesla replaced individual safety systems built into each cell with an inexpensive fireproof system for the entire battery pack. Now, they have begun producing the new “2170” cell, which delivers higher density through an automated system developed with Panasonic to further reduce costs.

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