In the quest for cleaner, more sustainable transportation, electric vehicles (EVs) have emerged as a promising solution. However, behind the scenes, powerful interests may be hindering their progress. One such player is Chevron, a company that controls key patents for nickel-metal hydride (NiMH) batteries, crucial components for early electric vehicles like the RAV4-EV. This blog delves into how Chevron’s actions might be impacting the adoption and advancement of EV technology.
The Power Struggle Over NiMH Batteries
NiMH batteries, particularly the EV-95 model developed by Panasonic, were a game-changer for electric vehicles. These batteries could power a car from 0 to 80 mph and sustain a range of over 100 miles per charge. Introduced in 1997, they promised a future where electric vehicles could perform comparably to their gasoline counterparts, with a lifespan of over 150,000 miles before needing replacement.
However, this promising technology soon found itself entangled in corporate maneuvers. In 1994, General Motors (GM) acquired the patents for these batteries from inventors Stan and Iris Ovshinsky. GM’s intention to produce the EV1, an all-electric vehicle, seemed to herald a new era. Yet, by 2000, GM sold these battery patents to Texaco, which was soon acquired by Chevron. This transfer of control effectively placed Chevron, an oil giant, at the helm of a technology that could significantly reduce the world’s reliance on fossil fuels.
A Controlled Market
Chevron’s unit, Cobasys, now controls these vital battery patents. Despite the clear benefits and existing demand, Cobasys has been reluctant to sell these batteries, citing the need for large OEM orders. This stance has stifled the availability of NiMH batteries for EVs, forcing manufacturers and consumers to turn to alternatives like lithium-ion batteries, which are more expensive and, in some cases, less durable.
The situation reached a tipping point when Chevron sued Panasonic, extracting a $30 million settlement and subsequently shutting down the EV-95 battery line. This move effectively eliminated a proven, reliable battery from the market, leaving only a few salvaged units available for existing RAV4-EVs.
The Impact on Electric Vehicle Development
The removal of NiMH batteries from the market has significant implications. Prototype EVs, such as the GM EV1, showcased the potential of these batteries. The EV1, introduced as the “Impact” in 1989, demonstrated that electric cars could achieve high performance and range. However, the sale of battery patents to Chevron and the subsequent legal battles hindered further development and adoption of this technology.
GM’s reluctance to fully embrace electric vehicles became evident when it sold the battery patents just days before Texaco’s acquisition by Chevron. This strategic move, perhaps designed to obscure direct collaboration between GM and Chevron, has long-term consequences for EV development.
The Rise of Phony Hybrids
In place of true electric vehicles or plug-in hybrids with robust battery systems, the market has seen a proliferation of “phony” hybrids. These vehicles, often marketed as eco-friendly, still rely heavily on gasoline engines. For instance, the plug-in Prius uses expensive lithium batteries and still requires gasoline for speeds over 33 mph or when the engine is cold. This setup keeps consumers tethered to the very fossil fuels EVs aim to replace.
A Call for Change
The current landscape suggests that corporate interests, particularly within the oil and auto industries, have a vested interest in maintaining the status quo. They promote hybrids that still rely on gasoline while hindering the development of fully electric vehicles. The control over NiMH battery patents is a clear example of how these interests can shape the market.
However, there is hope. Increased awareness and demand for sustainable transportation can drive policy changes. A responsible administration and proactive legislation could force companies like Chevron to relinquish control over crucial technologies, enabling the production of true plug-in hybrids and all-electric vehicles.
The Road Ahead
As we navigate the transition to cleaner energy, it is crucial to recognize the forces at play. Chevron’s control over NiMH batteries highlights the complex interplay between innovation and corporate interests. By understanding these dynamics, we can advocate for policies and technologies that truly support a sustainable future.
The future of transportation depends not just on technological advancements but also on the will to overcome obstacles posed by entrenched interests. It’s time to push for change, ensuring that electric vehicles can fulfill their potential in reducing our dependence on fossil fuels and paving the way for a cleaner, greener world.



