Amprius Battery Technology and Expansion Plan
INCUMBENT TECHNOLOGY VS. AMPRIUS
Amprius' Battery Cells Today Outperform Graphite Batteries
Performance Metric
Graphite Anode
Anode Capacity (mAh/g)(1)(2)
Specific Energy (Wh/kg)
Energy Density (Wh/L)
Charging Time to 80%
Rate Capability/Power
Cycle Life
Operating Temperature
Battery Cells(1)
335-355
~215-285
~530-715
30 minutes
Up to 10C
500-1,000 cycles
-20 to 60°C
amprius(3)
1,500-2,500
360-500
890-1,400
<6 minutes (4)
Up to 10C
200-1,200 cycles
-30 to 55°C
(1)
Other than cycle life, based on survey of 18650 technical datasheets (ex. Panasonic NCR18650G), Sony VTC6 technical datasheet, iFixit reports on iPhone and Samsung batteries and Y. Sun
et al.: Li-ion Battery Reliability - A Case Study of the Apple iPhone. For cycle life, based on Shmuel De-Leon: Li-Ion NCA/NMC Cylindrical Hard Case Cells Market 2021.
(2) Anode Capacity for Graphite Anode Battery (full cells) uses typical N/P ratio of 1.05 - 1.10.
(3) Includes both released and unreleased products with energy and power cell designs.
(4) Based on Amprius' High Power cells.
amprius
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