Lithium Ion Battery Power Pack Technology

Formation of 6S2P (6 In Series & 2 In Parallel) Module Assembly for Generating 21.5 volts Battery Module, further to this, it will form 350 volts Battery Power Pack With 39.5 kWh Energy, which will be used for SUV 4W Cars.

Having Cell Capacity 56Ah & Nominal Voltage range Approx 3.65 V ~ 3.68 V, Also Operating Voltage Range 2.8 V ~ 4.25 V at constant & 2.5 V ~ 4.25 V at peak, this cell will get converted in to 21.5 V Capacity Module Formations.

This Module will get converted in to 350 V System with Battery Power Pack 96S2P (96 In Series & 2 In Parallel) With Nominal Pack Voltage 351.5 V & Maximum Voltage of 398.5 V & Minimum Voltage of 288.5 V

By Assembly Total 16 Nos of Modules of 21.5 V, This Battery Power Pack will form a Pack Capacity of 112 Ah at 1 C Rate of Charging Capacity & Which will generate the Total Energy of 39.5 kWh

This Entire Battery Power Pack Is Nothing but Lithium-Ion Cell Rechargeable Electrical Energy Storage System (RE-ESS) of 350 V @ 39.50 kWh

In order to take decisions on C-rates or power for battery pack in various modes, temperature for battery pack (T_Batt) needs to be defined.

The operating temperature limit of the battery in drive mode should be between -20°C to 55°C.The maximum discharge current and regeneration current are function of temperature and SoC also needs to define.

In drive mode, the battery can be charged with regenerative current. Since the magnitudes of these currents are expected to be high, these might affect the warranty life of battery. Hence, the C- rates of regeneration currents are limited. The operating temperature limit of the battery in drive mode should be between 0°C to 45°C.

Also, all the Testing Parameters Including EoL End Of Line Testing of Battery Power Pack Along with Battery Module will be Defined. This Includes Functional Testing, Safety Testing, Performance Testing & Electrical Checks considering high voltage systems.

Thermal Resin Dispensing in Battery Module & Battery Power Pack will also be analyzed to study the behaviors aspects of battery power pack in case of high voltage systems, Thermal Runaway Analysis will also be considered the part of this project.

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