The automotive industry is placing high importance on technologies that can reduce CO2, even in a highly fuel-efficient compact car. One major technology is Stop & Start(S&S) System, with a combined energy regeneration system.A key component of the system is a power supply storage device that has high-charge acceptance, light weight, and compact size. We believe a Lithium-ion (Li-ion) battery completely meets these requirements.For the battery, there are three key points: We have already proposed the battery cell and the SOC detection during SAE 2013, and now we are going to introduce “Temperature Management”.If the temperature of a Li-ion battery operates over 60 degrees Celsius, the battery could be severely damaged. Therefore, temperature management of the battery is very important.Conventionally, the temperature is managed by several thermistors and a cooling fan. However, this method is difficult to install in a compact car where cost and space are limited.We have developed our battery pack with the flexibility that allows it to be put in a compact car. The pack has two features: We succeeded to install this system in a compact car through our new temperature management.
Temperature Management of Li-Ion Battery Pack for Stop and Start System
Sae Technical Papers
SAE 2014 World Congress & Exhibition ; 2014
2014-04-01
Conference paper
English
Temperature management of Li-ion battery pack for stop and start system
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