{"id":"babca9c6-ef9a-443f-808f-dbc6f13408b5","slug":"tracy-kelley","name":"Tracy Kelley","bioBrief":"President and Chief Science Officer at [Sion Power](/companies/sion-power), with the company for 20+ years. Previously served eight years as CEO and five years as CTO. Deep technical expertise in battery systems; previously worked at Valence Technology on early lithium-ion battery innovations.","priorExits":null,"nationality":"American","verificationPosture":"verified","aliases":[],"sources":[{"url":"https://sionpower.com/company/","title":"About Sion Power","sourceName":"Sion Power (official)"}],"reviewStatus":"reviewed","createdAt":"2026-07-29T09:05:37.409Z","updatedAt":"2026-07-29T09:22:58.878Z","educations":[],"companyRoles":[{"id":"cbf7ec12-b92c-4c7d-abde-bcd6ab41ae52","personId":"babca9c6-ef9a-443f-808f-dbc6f13408b5","companyId":"61c7b365-6c99-4f62-aa54-c6bab2dd0881","role":"chief_scientist","roleTitle":"President & Chief Science Officer","startDate":null,"endDate":null,"currentRole":true,"roleBasis":"verified_secondary","createdAt":"2026-07-29T09:05:38.188Z","company":{"slug":"sion-power","name":"Sion Power Corporation"}},{"id":"96d0cb28-1ad7-452a-9334-11014c47e08e","personId":"babca9c6-ef9a-443f-808f-dbc6f13408b5","companyId":"61c7b365-6c99-4f62-aa54-c6bab2dd0881","role":"founder","roleTitle":"Co-founder","startDate":null,"endDate":null,"currentRole":true,"roleBasis":"verified_secondary","createdAt":"2026-07-29T09:05:38.952Z","company":{"slug":"sion-power","name":"Sion Power Corporation"}}],"boardRoles":[],"investorRoles":[],"foundings":[{"id":"34518cd4-37e9-4976-addd-cb7eb2e6a83b","personId":"babca9c6-ef9a-443f-808f-dbc6f13408b5","companyId":"61c7b365-6c99-4f62-aa54-c6bab2dd0881","foundingDate":null,"cofounderStatus":"sole","stillAtCompany":true,"createdAt":"2026-07-29T09:23:00.013Z","company":{"slug":"sion-power","name":"Sion Power Corporation"}}]}