TECHNOLOGYThe World Needs Better Batteries!
Silicon Anode Fabrication ProcessLearn how Amprius manufactures its ultra-high density silicon anode lithium-ion batteries!
We Enable the Future of Electric Mobility Today
- 100% silicon anode battery(1)
Superior Battery Performance
- High Energy Density
- Up to 450 Wh/kg(2) and 1,150 Wh/L(2)(3)
- High Power Density
- Up to 10C
- Fast Charge Rate Capability
- 80% charge in <6 minutes
- Wide Operating Temperature
- -30°C to 55°C
- Tested and validated by industry leading partners
Note: Certain performance metrics are based on specific Amprius products.
(1) Actual percentage of silicon is 99.5-99.9% which is within the range of acceptable purity levels for materials that are considered 100%.
(2) At C/10 and 23°C.
(3) Volumetric energy density is calculated using body dimensions at 30% state of charge (“SoC”).
THE PROBLEMWhy is battery technology evolving so slowly?
The main reason for the slow pace of battery improvement is chemistry. In conventional lithium-ion batteries the anode is made of carbon in the form of graphite, and graphite has reached its energy density limit.
A new anode material is required to improve battery performance, and that material is silicon. Silicon can store up to 10 times more lithium compared to graphite which enables batteries to have much greater energy. But silicon swells dramatically when it is charged with lithium and that can cause it to crack and stop working.
Advantages of Amprius’ silicon batteries
Highest content active silicon material
Silicon is the best material for energy density. Using more silicon means that we can provide lithium-ion batteries with higher energy density, while at the same time enabling the highest ratio of energy to power.
Excellent cycle life
Amprius Technologies’ Silicon Batteries have excellent cycle life that is continuously improving. This has been demonstrated in real world use with multiple organizations including US National Labs and major aerospace companies.
100% Silicon Anode (1) Has ~10x Capacity vs. Graphite
PRESENT AND FUTURERevolutionizing battery technology
Urban Air Mobility – estimated flight time based on customer models
Soldier Power – real data based on Conformal Wearable Battery developed for US army
Smartwatch – customer-reported data
Electric Vehicle – estimated relative to Tesla Model 3 long-range battery specifications