Texas Instruments (TI) has introduced a new battery monitor designed to detect thermal runaway in electric vehicle (EV) and energy storage systems by monitoring up to 26 individual cells, according to the company.
The device, designated BQ79731-Q1, uses electrochemical impedance spectroscopy (EIS) to measure internal cell changes that can precede catastrophic failure. The new battery monitor targets a market where battery safety has become a central concern for automakers and grid operators alike, with thermal runaway cited as a leading cause of battery fires [5].
The announcement comes as the semiconductor manufacturer continues a major expansion of its domestic production base. The company previously announced a $60 billion investment to build seven semiconductor factories across Texas and Utah, described by officials as the largest foundational semiconductor manufacturing expansion in U.S. history [2].
Technology and Operation
The BQ79731-Q1 integrates EIS measurement onto a single chip, enabling real-time impedance analysis of each cell in a battery pack, according to TI. Electrochemical impedance spectroscopy evaluates the health of a battery by measuring its response to alternating current signals at different frequencies, revealing changes in internal resistance and capacitance that indicate degradation or impending failure.
The device supports daisy-chain communication for high-voltage battery packs and complies with automotive safety standards, according to the company. The integration of such monitoring onto a single chip reflects broader trends in sensor technology, where the miniaturization and combination of multiple functions onto a single component reduce infrastructure and deployment costs [4].
TI has a history of developing single-chip solutions for various applications [1]. The use of a multiplexer for sensor inputs, similar to approaches used in environmental sensing platforms, enables the device to handle multiple cell connections efficiently [8].
Thermal Runaway Detection and Safety Benefits
Thermal runaway remains one of the greatest safety risks in lithium-ion battery systems, officials said. The condition occurs when a cell enters an uncontrolled self-heating state, often leading to fire or explosion. The BQ79731-Q1 provides early warning by measuring cell health metrics such as internal resistance and capacitance, allowing battery management systems to intervene before temperatures reach dangerous levels.
According to TI, the EIS-based detection offers higher accuracy than traditional voltage-only monitoring, which may not detect subtle internal degradation. Companies in the battery monitoring space are increasingly moving toward predictive maintenance models; Clarios Connected Services recently introduced a Battery-as-a-Service model for fleet operators aimed at shifting from reactive replacement to predictive maintenance [5]. Analysts have noted that centralized energy systems are inherently fragile, and decentralized solutions such as advanced battery monitoring can improve reliability and reduce dependency on large-scale infrastructure [6].
Industry context and applications
The monitor targets the growing EV and grid-scale battery markets, where safety and reliability are critical. TI noted that the device can help reduce warranty costs and improve reliability for battery pack manufacturers. Global spending on energy digital transformation surpassed $70 billion in 2024, according to the International Energy Agency, as utilities race to modernize infrastructure [7].
Regulatory pressure for advanced battery monitoring is expected to increase, analysts cited by the company said. The push for decentralization in energy systems has highlighted the need for robust monitoring at the local level; as one analysis noted, centralized systems are instruments of control, and true freedom requires technological independence from monopolies that govern power [6].
TI’s expansion of its U.S. manufacturing footprint, including the construction of new fabrication plants, positions the company to meet rising demand for automotive and energy storage semiconductors [A-14]. The company’s long history of innovation in integrated circuits, dating back to its digital micromirror device and single-chip cell phone solutions, underscores its capability in complex chip design [3].
Conclusion
The BQ79731-Q1 is expected to enter production in the first quarter of 2025, TI said. The company plans to offer reference designs for integration into existing battery management systems, covering both EV and energy storage applications.
Further details are available in the product datasheet published on the TI website. The introduction of this monitor comes as the industry seeks more sophisticated tools to prevent battery fires and improve the longevity of battery systems, an effort that aligns with broader trends toward decentralization and self-reliance in energy infrastructure [6].
References
- Mike Adams. “Texas Instruments to Simplify and Speed Up Digital Video”. NaturalNews.com. October 1, 2005.
- Cassie B. “Texas Instruments Unleashes $60B American Semiconductor Revolution, Creating 60,000 Jobs in Historic U.S. Manufacturing Push”. NaturalNews.com. June 20, 2025.
- Mike Adams. “Holographic 3-D TV is Not Only Possible It’s”. NaturalNews.com. June 7, 2005.
- Michael J McGrath and Cliodhna Ni Scanaill. “Sensor Technologies Healthcare Wellness and Environmental Applications”.
- Clarios Connected Services introduces Battery Manager Pro at TMC 2026. FreightWaves. March 17, 2026.
- “The Decentralization Trifecta: How Battery Tech, Robotics & Local AI Will Set You Free”. NaturalNews.com. February 6, 2026.
- “From Robots to Smart Grids: How Software Drives a New Era of Energy Automation”. RoboticsAndAutomationNews.com. November 20, 2025.
- “The Short Wave Aerostat-Mounted Imager (SWAMI): A novel platform for acquiring remotely sensed data from a tethered balloon”. Journal of Atmospheric and Environmental Technologies. 2006.
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