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Meta Develops Ultra-Narrow Steel-Can Batteries for Smart Glasses
Meta has engineered new steel-can batteries for smart glasses, achieving widths of 7mm. This innovation allows for better energy efficiency and performance in tight spaces, addressing limitations of traditional battery types.
Key points
- New batteries are 7mm wide, suitable for smart glasses.
- Utilize die-cut stacked layers for lower impedance.
- Cell capacity increased from 160 mAh to 210 mAh.
Introduction to Smart Glasses Powering Challenges
Smart glasses, like the Ray-Ban Meta and Oakley Meta Vanguards, require batteries powerful enough to run multiple features including cameras and AI, while fitting within constraints of the product's design. Traditional pouch batteries are unsuitable due to their size and inefficiencies.
Transformation in Battery Design
Meta's engineers have developed new steel-can batteries that reach widths as narrow as 7mm. This required rethinking the battery's internal structure, which enhances energy density and the ability to deliver peak power during simultaneous tasks.
Advantages of Steel-Can Technology
The new battery design employs die-cut stacked layers instead of the traditional jelly roll. This method lowers impedance, essential for maintaining power during intensive use, such as when recording video while querying an AI.
Significant Improvements in Capacity
With the evolution of the Meta Ray-Ban glasses from generation 1 to generation 2, battery capacity increased from 160 mAh to 210 mAh. Despite this, Meta has reported the new models boast double the runtime, showcasing the efficiency of the new battery design.
✨ This summary was generated by AI from the outlets' reporting listed below. It is not independently verified and may contain errors — check the original sources. How BrevFeed works →
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Reporting from
Meta has engineered new steel-can batteries for smart glasses, achieving widths of 7mm. This innovation allows for better energy efficiency and performance in tight spaces, addressing limitations of traditional battery types.