Adden
Waltham, US · Founded 2021 · 4 known investors
Find your way into Adden
674 people in our graph share verified history with the Adden team — schools, employers, funds. One of them is your warm intro.
Nicole Gaudelliunlockedknows Xin Li · together at Harvard University (overlapped)
×4knows the team · via Penn State University
×3knows the team · via Massachusetts Institute of Technology
×3knows the team · via Harvard University
knows the team · via Nanjing University
Adden Energy develops solid-state, dynamically-stable batteries based on self-healing separator technology discovered at Harvard, aimed at fast charging, long lifetime, and non-flammable components. The batteries target electric vehicles, automakers, and other applications including drones, data centers, and robotics.
Founders & leadership
Adden was founded in 2021 by William Fitzhugh, Luhan Ye, and Xin Li.
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William FitzhughinCo-founder
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Luhan YeinCo-founder
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Xin LiinCo-founderXin Li is a researcher at Harvard University with expertise in energy storage materials, electrochemistry, and advanced characterization techniques including electron microscopy and X-ray diffraction. He founded Adden Energy, which develops solid-state batteries using self-healing separator technology for electric vehicles and other applications.
Board
Investors · 4
Reported raises · per SEC filings
Form D private placements$20.1M disclosed across 2 rounds · 2022–2024
▶$15MraisedSep 2024 · 4 investors · Other EnergyRule 506(b)
▶$15MraisedSep 2024 · 4 investors · Other Energy
Rule 506(b)Officers, directors & promoters on the filing
- Bernard LupienDirector
- William FitzhughExecutive Officer, Director
- Luhan YeExecutive Officer, Director
- Fred HuDirector
- Xin LiExecutive Officer, Director
- Laurie MenoudDirector
- Offering amount
- $15M
- Amount sold
- $15M
- First sale
- Aug 2024
- Incorporated
- Corporation, Delaware, 2021
- Federal exemptions
- 06b
▶$5.1MraisedFeb 2022 · 3 investors · Other EnergyRule 506(b)
▶$5.1MraisedFeb 2022 · 3 investors · Other Energy
Rule 506(b)Officers, directors & promoters on the filing
- Xin LiExecutive Officer, Director
- William FitzhughExecutive Officer, Director
- Bernard LupienDirector
- Fred HuDirector
- Offering amount
- $5.1M
- Amount sold
- $5.1M
- First sale
- Feb 2022
- Incorporated
- Corporation, Delaware, 2021
- Federal exemptions
- 06b
Source: SEC EDGAR Form D. Amounts as filed; amended filings shown once at their latest values.
In the news
Frequently asked questions
- What does Adden do?
- Adden Energy develops solid-state, dynamically-stable batteries based on self-healing separator technology discovered at Harvard, aimed at fast charging, long lifetime, and non-flammable components. The batteries target electric vehicles, automakers, and other applications including drones, data centers, and robotics.
- Who founded Adden?
- Adden was founded by William Fitzhugh, Luhan Ye, Xin Li in 2021.
- Who are Adden's investors?
- Adden's investors include At One Ventures, MassVentures, Rhapsody Venture Partners, Primavera Venture Management Limited.
- How much funding has Adden raised?
- Adden has disclosed $20.1M raised across 2 rounds.
- Where is Adden headquartered?
- Adden is headquartered in Waltham, US.





