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SiNANOde® – MORE ENERGY
IN SLIMMER, LIGHTER BATTERIES


SiNANOde®, a silicon-graphite anode material that significantly improves the performance of lithium-ion batteries:

Highly scalable and cost competitive manufacturing process
Based on best commercial graphites and high purity silane gas both supplied at scale and low cost
Production capacity now scaling up from 10 to 100 tons annuallyPRESS RELEASE - Apr. 4, 2019 - scaling up Sinanode® production from 10 to 100 tons annually

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SiNANOde® – MORE ENERGY
IN SLIMMER, LIGHTER BATTERIES


SiNANOde®, a silicon-graphite anode material that significantly improves the performance of lithium-ion batteries:

Highly scalable and cost competitive manufacturing process
Based on best commercial graphites and high purity silane gas both supplied at scale and low cost
Production capacity now scaling up from 10 to 100 tons annuallyPRESS RELEASE - Apr. 4, 2019 - scaling up Sinanode® production from 10 to 100 tons annually

WHO WE ARE

In 2013, OneD Material acquired Nanosys’ nanowire technologies and Palo Alto R&D activities.

Today, OneD Material operates a SiNANOde® pilot production to support the development of advanced electrochemical cells and the production scale-up of its industrial partners.

Building upon over a decade of R&D, Dr. Yimin Zhu, OneD material’s CTO, leads a team that continues to improve the SiNANOde® materials and manufacturing processes.

OneD Material partners with leading material suppliers, battery makers, and their customers to scale-up production and accelerate market adoption to meet current and future market demand. 

Working with customers in US, Europe and Asia, OneD Material’s joint R&D, manufacturing partnerships and license agreements are designed to optimize and expand the SiNANOde® production processes and the adoption of SiNANOde® materials in commercial batteries across multiple market segments.

Today, no company has ever produced more silicon nanowires than OneD R&D team and its manufacturing partners.

OneD Material’s patent portfolio includes over 200 patents and patent applications covering many nanowire inventions ranging from basic material structures to manufacturing processes and equipment. In addition to inventions developed by Nanosys during the prior decade and by OneD Material more recently, the portfolio also includes inventions from leading scientists at Harvard University, University of Pennsylvania and other top universities (view patents).

OneD Material was co-founded by a group of private investors, and is located at 2625 Hanover Street, Palo Alto, CA 94304.


Yimin Zhu, PhD 
OneD Material Chief Technology Officer

Vincent Pluvinage, PhD - CEO
Todd Carter - Chairman of the Board

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UNIQUE TECHNOLOGY


UNIQUE TECHNOLOGY


NEW ANODE NANOMATERIAL IMPROVES LITHIUM-ION BATTERIES

SiNANOde® is a high-performance silicon-graphite nanomaterial capable of significantly increasing the energy density and cycle life of a large variety of Lithium-ion batteries.

SiNANOde® consists of silicon nanowires grown on various types of commercially available graphite powder. SiNANOde® can be produced in various grades ranging from 4% to 32% silicon to carbon weight ratio.

The performance of full cells using SiNANOde® can be optimized to meet the specific requirements of each application.

The SiNANOde® anodes can be matched with many existing and new cathodes, including NCA (Nickel Cobalt Aluminum Oxide), LCO (Lithium Cobalt Oxide), NCM (Nickel Cobalt Manganese Oxide) cathodes and other materials.

SiNANOde® is well suited for many market segments ranging from Military, Power Tools and Medical applications, to higher volume applications in Consumer Electronics and Electrical Vehicles.

When traditional Lithium-ion batteries are charged, energy is stored in the anode electroactive material, which is mostly made of graphite. An often quoted "rule of thumb" is that about 1 kg of graphite is needed per kWh of battery capacity. For example, approximately 80 kg of graphite are needed for an 80 kWh EV battery or approximately 30 grams of graphite are needed for a 30 Wh tablet battery (1 kWh = 1000 Wh and 1 kg = 1000 gram).

The SiNANOde® materials combine graphite and silicon nanowires to provide greater energy stored per kg of anode electroactive material.  This greater energy density depends on the weight ratio of silicon nanowires to graphite: for example 10% Si/C SiNANOde® can store an amount of energy per kg which is twice greater than the energy per kg stored in graphite while 20% Si/C SiNANOde® can store an amount of energy per kg which is three times greater than the energy per kg stored in graphite (0.5 kg of SiNANOde material with 10% Si/C ratio is sufficient for about 1 kWh of battery capacity).

An annual manufacturing capacity of 100 tons (= 100,000 Kg) of 20% Si/C SiNANOde® anode material has a nominal energy storage capacity of 300 MWh in lithium batteries.

This hybrid silicon-graphite material can be used as direct replacement for the graphite (tripling the specific energy density of the graphite) or can be used as an additive mixed with the graphite, for applications that require less silicon content in the anode (for example 500 tons of 5% Si/C mixed active material can be obtained by mixing 100 tons of 20% SiNANOde and 400 tons of graphite, for a total of 700 MWh nominal capacity). Unlike other silicon additives, the mixing of SiNANOde with graphite to the 5% Si/C active material content has been demonstrated in full cells to achieve the same high first cycle efficiency and long cycle life of the pure graphite

Additional information are available in the TECHNICAL CONTENT section after a free signup followed by email confirmation.

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EASY TO MANUFACTURE


EASY TO MANUFACTURE


SCALABLE MANUFACTURING PROCESS INTEGRATES EASILY WITH TRADITIONAL ANODE PRODUCTION

SiNANOde® production starts with one of the best commercially available types of graphite.

A deposition process adds catalyst nanoparticles onto each graphite particle to later initiate nanowire growth directly onto the graphite in commercial CVD furnaces .

The silicon nanowires remain attached to the graphite throughout slurry mixing, anode coating and calendering, and throughout the full battery life of cell charge-discharge cycles. This ensures that electrons can always flow between the anode current collector and the silicon nanowires during lithiation and delitihation, thru the graphite particles.

The size of the catalyst nanoparticles and their surface density on graphite particles are determined by the catalyst synthesis and deposition process. The average length of the nanowires is determined by the CVD process. Together, these parameters determine the final silicon content per gram of graphite. .

Thanks to a proprietary reactor design, each CVD furnace converts 99% of the Silane gas into silicon nanowires attached to the graphite particles.

The resulting SiNANOde® powder can then easily replace the standard graphite (or be mixed with the graphite) to make a slurry applied onto electrode foil using traditional roll-to-roll production equipment.

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PARTNER & LICENSE


PARTNER & LICENSE


MANUFACTURING PARTNERSHIPS & TECHNOLOGY LICENSING

OneD Material owns a large and growing portfolio of over 200 patents covering a variety of nanowire materials, structures and manufacturing processes, and has accumulated a broad expertise and know how resulting from more than a decade of R&D investments.

OneD Material's goal is to scale-up production and accelerate adoption by battery makers and end customers.

To achieve that goal, OneD Material adopts a flexible business development approach.

First, OneD Material operates an R&D and pilot production facility in Palo Alto, and has transferred to material producers and battery makers the manufacturing capability to produce SiNANOde®.

Second, OneD Material has entered into manufacturing partnership to combine existing large-scale graphite manufacturing with SiNANOde® production.

Third, OneD Material can also transfer the catalyst synthesis and deposition processing steps to a graphite manufacturer and provide turn-key CVD services to leverage existing large-scale silane production to growth silicon nanowire onto catalyzed graphite.

This multi-prong approach provides industry participants more flexibility to reduce risks and costs while increasing opportunities to deploy SiNANOde in various commercial and military batteries.

 

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