Skeleton Technologies is an energy storage developer and manufacturer for AI data center, transportation, grid, and defence applications. Skeleton is developing a novel raw material, curved graphene,[1] to produce solutions for the energy storage market, including high-power supercapacitors.
Skeleton Technologies was created in 2009 for the purpose of developing graphene-based supercapacitors. In 2011, the company started the development of SpaceCap, a capacitor based on Skeleton''s proprietary carbide-derived carbon material, as a part of a commission from the European Space Agency.[13] In 2012, Skeleton launched its first commercial product series.
In 2013, Skeleton Technologies was incorporated in Germany for the first time as a GmbH, the German equivalent of a private limited company or limited liability company. That same year, the company received its first financing tranche of 2.2 million euros in Round A financing.[14]
In 2014, the company opened and began operating out of its first manufacturing facility in Viimsi, Estonia. They also participated in the Norway Grants "Green ICT" program, a cooperation programme between Estonia and Norway intended to facilitate sustainable development and green technology innovation, using the grant money to continue the development of their ultracapacitor technologies.[15]
At the Ecosummit 2015 in London, Skeleton Technologies was presented with the ''best startup'' award as well as 1.5K EUR in prize money.[16] Together with Adgero SARL, in 2015 they introduced a supercapacitor-based kinetic energy recovery system for trucks, designed to reduce fuel consumption.[17]
In 2017, Skeleton ISO 9001 and 14001 began to scale up production of its ISO 9001 and 14001 modules at its facility in Großröhrsdorf, Germany. At the tenth annual Bloomberg New Energy Finance Summit in New York City, the company was honoured as one of ten 2017 New Energy Pioneers.[18]
Beginning in 2018, the company expanded its product portfolio and began receiving orders from firms in the automotive, logistics, and aerospace industries.[19]
By 2019, Skeleton''s revenue growth tripled, and the company received more than 100 million euros in order intake. After a stringent testing course, the company''s SkelCap SCA series supercapacitor cells were given 810A certification from the safety organisation UL, certifying that the cells are safe for use in automotive applications and uninterruptible power supplies.[20]
In 2021, Skeleton Technologies was awarded the SET4FUTURE Innovation Award, honouring organisations that create innovative products and solutions for future railway technology and contribute to traffic reduction.[22] The company also received IATF 16949 certification, an international quality standard for the automotive industry, that year.[23]
In 2022, Skeleton announced the investment of 220 million euros to begin building a new factory near Leipzig, in partnership with Siemens.[24] The factory will be located in Markranstädt and is Skeleton''s second manufacturing site in the state of Saxony.
Skeleton produces supercapacitors to improve fuel efficiency and support power storage and discharge in electric vehicles. In automotive applications, supercapacitors can be connected in parallel with batteries to increase both energy density and power density and improve the longevity of the energy storage system.[25]
Skeleton Technologies and Class8 Energy, a Canadian equipment distributor, have signed an €11.6 million contract to supply supercapacitor modules to the North American trucking and retail industries. The modules will reduce cold-cranking time by a factor of 2 and offer higher cranking power than a battery, without toxic materials.[32]
Skeleton''s SkelCap supercapacitor series provides up to four times higher power density[39] as well as lower equivalent series resistance[40] when compared to other supercapacitor cells, leading to improved application lifetime. They have a long lifetime of over 1 million charge cycles or 15+ years[41] and near-total efficiency in temperatures ranging from −40 to 65 degrees Celsius.[42]
In total, Skeleton Technologies have received over 300 million euros in financing.[51] Additional investors include Harju Elekter,[53] Up Invest,[54] MM Grupp,[55] CTEK,[56] and Wise.[57]
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