• LG Energy Solution signs MoU with Analog Devices, Inc. (ADI), a global semiconductor leader with Innovative Intelligence at the Edge technologies in the field of battery management.

• The companies are working towards co-development of a technology that will enable precise measurement of battery cells' internal temperature. This has potential to enhance safety and charging speed, thus further advancing the clean energy ecosystem.

• LG Energy Solution aims to provide differentiated customer value through its advanced battery management total solution

SEOUL, South Korea, June 4, 2024 /PRNewswire/ -- LG Energy Solution (KRX: 373220) today announced it signed a Memorandum of Understanding (MoU) with Analog Devices, Inc. (ADI), a global semiconductor leader, to strengthen the competitiveness of its battery management total solution (BMTS).

Through the MoU, the companies have agreed on a two-year joint effort through which ADI will supply high-performance battery management integrated circuit (BMIC) and the two companies will co-develop algorithms that could precisely measure the internal temperatures of EV battery cells. This is expected to lead up to the development of advanced fast-charging technologies.

ADI is a well-known technology leader that has a large focus on sustainable energy. The company also has a broad product portfolio, including advanced technologies in impedance measurement.

In electrical science literature, impedance is defined as the opposition of an electrical component to alternating current and voltage in a circuit. Electrochemical Impedance Spectroscopy (EIS) is the technology that measures it at different frequencies. ADI EIS solutions utilize first-in-the-market BMIC to accurately measure the impedance at controlled frequencies. Since the impedance varies based on the battery's state, age, and temperature, its exact measurement leads to a deep understanding and diagnosis of its internal conditions.

In a conventional battery management system (BMS), a separate temperature measurement device is attached to the exterior of a battery cell, and once it obtains information, it is then managed by BMIC. As traditional devices cannot measure the exact temperature inside an individual battery cell in real-time, a battery's safe charging temperature must be set to a conservative number, limiting opportunities to further enhance charging speeds.

EIS solutions address these limitations by precisely estimating the internal temperature of individual battery cells without the need for a separate temperature measuring device, opening the door for improving charging speeds. In addition, these solutions are expected to contribute to improving battery performance and longevity by enhancing the safety of fast-charging and accurately assessing the charging and general status of the batteries.