Controversies
Controversies tied to this brand in public sources. A listing is not a finding of fault.
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2007
Chevron–ECD Ovonics battery-contract dispute
Chevron filed a legal claim alleging that ECD Ovonics had not satisfied contractual obligations associated with their battery relationship. ECD disputed the allegation. The dispute formed part of wider controversy over control, licensing, and commercial access to large-format nickel–metal hydride battery technology.