MUMBAI, India, Jan. 2 -- Intellectual Property India has published a patent application (202541123949 A) filed by Malla Reddy (MR) Deemed to be University; Malla Reddy Vishwavidyapeeth; Malla Reddy University; Malla Reddy Engineering College For Women; and Malla Reddy College Of Engineering And Technology, Medchal-Malkajgiri, Telangana, on Dec. 9, 2025, for 'compact thermal management system for battery operated vehicles.'
Inventor(s) include Dr. B. Sridhar Babu; Dr. D. S. Chandra Mouli; Mr. P. Balaji Krushna; Dr. K. Bharadwaja; and Ms. S. C. Sireesha.
The application for the patent was published on Jan. 2, under issue no. 01/2026.
According to the abstract released by the Intellectual Property India: "The current invention reveals a high efficiency, small thermal management system (TMS) designed specially to deal with the battery packs of electric vehicles (EVs). The temperature of the battery in an optimal operating range is essential in the fast developing field of electric mobility safety, durability, and functionality. Traditional cooling, like forced air cooling, cannot be relied upon in the case of high-density battery packs, and traditional liquid cooling systems are difficult to use because they add a lot of weight and complexity, effectively occupying more space in the vehicle chassis. This invention will overcome these problems by incorporating a hybrid cooling system that takes a combination of passive thermal buffering capabilities of Phase Change Materials (PCM) and an active, micro-channel liquid cooling system. The system employs graphite-infused paraffin wax as a PCM in the form of a composite matrix that covers each and every battery cell. Rather it is a thermal capacitor which absorbs the heat spikes produced in the early stages of acceleration or fast charging with the latent heat of fusion. This is a passive layer that makes sure that short time temperature differences are eliminated without any energy expenditure of the battery of the vehicle. It is especially helpful in alleviating the risk of thermal runaway on the cell level, which is typically an issue with lithium-ion chemistries. The invention uses an ultra-thin aluminum micro-channel heat exchanger bonded on the PCM matrix in order to deal with sustained thermal loads. At the saturation point in the PCM, a smart controller will switch on a low-power micropump to pump the coolant into the heat exchanger. This working stage re-forms the PCM by taking the heat stored out and cooling down using a small external radiator. With the combination of the two approaches, the size of the radiator and pump can be reduced significantly to make the entire system lighter. Moreover, the revealed invention is modular in design, which can be adapted to different types of vehicles, including the electric two-wheelers and the heavy commercial vehicles. It comprises a system of temperature sensors which feeds real time information to a Battery Management System (BMS) to offer accurate thermal control. The system ensures a long cycle life of the battery pack as well as to enhance the overall range of the vehicle by reducing the parasitic energy that is normally required by the heavy-duty cooling pumps and fans by optimizing the trade-off between passive mass and active components."
Disclaimer: Curated by HT Syndication.
