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Next-Generation Cell Redefines Electric Mobility with Unrivaled Power and Energy Efficiency

FREMONT, Calif. August 3, Amprius Technologies, Inc. (NYSE: AMPX), a leader in next-generation lithium-ion batteries with its Silicon Anode Platform, continues to be at the forefront of innovative battery technology. Their latest product, an ultra-high-power lithium-ion battery, showcases an impressive discharge rate of 10C combined with an energy density of 400 Wh/kg. This advancement is particularly noteworthy for the electric aviation market, projected to exceed $49 billion USD.

The cell’s exceptional power output offers significant advantages to the eVTOL and UAV industries by delivering unmatched propulsion power and energy needed for operations during takeoff, cruising, and landing. Additionally, it can elevate flight ranges by up to 50% and enhance payload capacity. High-performance EVs can also benefit from this groundbreaking technology, potentially achieving 0 to 60 mph (0 to 97 km/h) in less than 1.5 seconds, thereby setting new performance benchmarks in a market anticipated to grow to $67B.

“Commercial opportunities in electric mobility hinge on power and energy requirements,” states Dr. Kang Sun, CEO of Amprius. “The new cell exhibits impressive specific power and energy density, reaching about 200% more than traditional graphite cells while maintaining a 10C discharge rate, significantly expanding application possibilities and enhancing cost-effectiveness.”

The cell achieves a remarkable power density of W/kg under standard discharge conditions and exceeds W/kg at lower depths-of-discharge, enhancing usable discharge capability. It effectively manages high current pulses even at low states of charge, maintaining optimal performance without breaching lower cut-off voltages, resulting in W/kg at 30% discharge depths. This unique combination of high energy density and high power density optimizes battery weight and size, leading to extended ranges, reduced charge frequency, and lower operational costs.

Moreover, the new ultra-high-power cell features an ultra-fast charging capability, charging up to 80 percent in approximately six minutes, radically transforming mission-critical operations that require quick turnaround.

Amprius is committed to providing batteries that are crucial for advancing electric mobility and anticipates having cell samples available for customers by the end of this year, with commercialization slated for early next year.

About Amprius Technologies, Inc.
Amprius Technologies is a premier manufacturer of high-energy and high-power lithium-ion batteries, boasting the industry's highest energy density cells. Its commercially available batteries deliver up to 450 Wh/kg and 1,150 Wh/L. The corporate headquarters is in Fremont, California, where an R&D lab and pilot manufacturing facility specialize in silicon anodes and cells. In response to customer demand, Amprius recently signed a lease for a 774,000 square foot facility in Brighton, Colorado. For further information, please visit amprius.com or check the company’s LinkedIn and Twitter pages.

Forward-Looking Statements

This press release contains “forward-looking statements” in accordance with Section 27A of the Securities Act and Section 21E of the Securities Exchange Act. Such statements are identified by terms like “estimate,” “plan,” “project,” “intend,” “expect,” “anticipate,” or similar expressions projecting or indicating future events or trends, and are not based on historical facts. These forward-looking statements cover anticipated product commercialization, potential application, and performance of Amprius’s batteries. They are based on various assumptions and current expectations from the Amprius management team and do not predict actual performance. Actual outcomes may substantially differ, influenced by risks and uncertainties such as liquidity positions, rollout challenges for the business, material supply shortages, and fluctuating market and legal conditions. More information on these risks is available in documents filed with the SEC, found on their website at www.sec.gov.

Investors
Cody Slach, Tom Colton
Gateway Group, Inc.
949-574-

Media
Zach Kadletz, Brenlyn Motlagh
Gateway Group, Inc.
949-574-

Source: Amprius Technologies, Inc.

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Power Density vs DoD%, Amprius Silicon Anode System vs. Commercial Graphite Anode System
Amprius’s cell achieves over 3x the discharge rate while sustaining power delivery at lower depths of discharge, leading to extended usable battery capacity.

Gravimetric Energy Density vs. Power Density, Amprius Silicon Anode System vs. Commercial Graphite Anode System
Amprius's cell exhibits over 40% higher gravimetric energy density across a broader range of discharge rates, thereby meeting the most challenging requirements.

Maximum Cell Temperature vs. Discharge C-Rate, Amprius Silicon Anode System vs. Commercial Graphite Anode System
Amprius's cell operates cooler at higher discharge rates, reducing the need for thermal management components, leading to less weight and additional space for payload.

Comparison of Amprius Silicon Anode Cell vs. Commercial Graphite Anode Cell

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