Research on the Dynamic Safety Boundary of Fast Charging Based on the Modified P2D Model of Lithium Plating Jilin University, College of Automotive Engineering

Format:

Book

Conference/Event

Author/Creator:

Gao, Zhenhai, author.

Contributor:

Chen, Siyan

Liu, Xinhua

Ma, Bin

Xie, Haicheng

Yu, Hanqing

Zhang, Lisheng

Conference Name:

SAE 2022 Vehicle Electrification and Powertrain Diversification Technology Forum (2022-08-23 : Beijing, China)

Language:

English

Physical Description:

1 online resource cm

Place of Publication:

Warrendale, PA SAE International 2022

Summary:

With the worldwide trends in mobile electrification, consumers' demand for fast charging of electric vehicles (EVs) continues to grow. However, due to the defects of the current mainstream vehicle-mounted lithium-ion batteries (LIBs), lithium plating will occur at the anode during charging at high current rates, reducing battery life and even causing serious safety problems. In this paper, a pseudo two-dimensional (P2D) model integrated with lithium plating and SEI growth reaction is established to simulate the aging behavior of the battery during the cycle aging process. After verifying the model, we set up simulation conditions to quantitatively analyze the relationship between battery operating temperature, charging rate and cycle life, as well as the causes of capacity attenuation under each operating condition. By analyzing the simulation results, we found that lithium deposition can be predicted based on the overpotential, which can provide guidance for healthy and efficient fast charging without lithium plating

Notes:

Vendor supplied data

Publisher Number:

2022-01-7035

Access Restriction:

Restricted for use by site license