소개
Smart glasses are transforming how we interact with the world—combining displays, cameras, and sensors in ultra-compact frames. But behind these advanced features lies one crucial component: the battery. Choosing the right battery affects everything from device weight to runtime and safety. As form factors shrink, demand for thin, high-density, and safe power sources grows rapidly. Lithium polymer (LiPo) batteries are now the leading choice for most manufacturers.
Batteries Used in Smart Glasses
Smart glasses require batteries that are compact, lightweight, and capable of delivering stable performance in a very limited space. While several battery types have been explored in wearable electronics, only a few meet the unique demands of smart glasses. Here are the most commonly used battery types in this space:
1. 리튬 폴리머(LiPo) 배터리
Lithium polymer batteries are currently the most widely used power source in smart glasses. They offer a slim profile, flexible form factors, and relatively high energy density—making them ideal for integration into thin, lightweight eyewear frames. Their customizable shapes also allow for seamless design adaptation, which is essential in miniaturized wearables.
2. Lithium-Ion (Li-ion) Batteries
Traditional cylindrical or prismatic lithium-ion batteries provide excellent energy density and long cycle life. However, their rigid structure and limited flexibility make them less suitable for compact smart glasses, unless used in modular or external designs. They are more commonly found in larger wearables or AR headsets.
3. Solid-State Batteries (Emerging)
Solid-state batteries are still in the early stages of commercial deployment but are gaining attention for their potential to deliver higher energy density and improved safety. With no liquid electrolyte, they can be made thinner and are less prone to overheating—key advantages for next-generation smart glasses. However, cost and scalability remain challenges.
4. Zinc-Air and Coin Cell Batteries (Limited Use)
In some ultra-light smart glasses or basic audio-enabled glasses, low-power coin cell or zinc-air batteries may be used to extend runtime with minimal weight. These are generally not rechargeable and are limited to simple devices with minimal power requirements.
Battery Comparison Table for Smart Glasses
| 배터리 유형 | 에너지 밀도 | Size Flexibility | Rechargeable | Safety Level | Typical Use Case |
|---|---|---|---|---|---|
| Lithium Polymer | 높음 | 매우 높음 | Yes | 높음 | Most mainstream smart glasses |
| 리튬 이온 | 매우 높음 | 낮음 | Yes | 보통 | Larger AR devices, external modules |
| 솔리드 스테이트 | 매우 높음 | 보통 | Yes | 매우 높음 | Future high-end smart glasses (R&D) |
| Coin Cell | 낮음 | Small, fixed | No (mostly) | 높음 | Basic audio glasses, low-power use |
| 아연-공기 | 낮음 | Small, fixed | No | 높음 | Hearing aids, ultra-light glasses |
Battery Design Challenges in Smart Glasses
Designing batteries for smart glasses involves several unique challenges due to the device’s compact size and complex functionality. Here are the key difficulties manufacturers and engineers face:
1. Limited Space and Thin Form Factor
Smart glasses must remain lightweight and comfortable for all-day wear. This means the battery has to fit into a very slim and irregularly shaped space inside the frame or temple arms. Achieving sufficient capacity without increasing bulkiness is a constant balancing act.
2. Weight Constraints
The battery contributes significantly to the overall weight of the glasses. Heavier batteries can cause discomfort and affect the user experience, so manufacturers prioritize lightweight materials and designs that minimize weight while maximizing power.
3. Heat Dissipation and Safety
Even small batteries generate heat during charging and discharging. In a device worn close to the skin and eyes, effective heat management is critical to prevent overheating and ensure user safety. Battery chemistry and protective circuitry play vital roles here.
4. Maintaining Long Runtime in Small Size
Smart glasses often incorporate power-hungry features like displays, cameras, sensors, and wireless communication. Delivering adequate runtime from a tiny battery requires high energy density cells and efficient power management strategies.
5. Flexible and Custom Shapes
Unlike phones or laptops, smart glasses have highly customized and curved designs. Batteries must be flexible or shaped to fit these contours without compromising structural integrity or performance.
6. Integration with Charging Methods
The battery must support charging methods compatible with the glasses design, such as fast charging, wireless charging, or magnetic connectors. Ensuring safe and efficient charging in a compact form is a technical challenge.
Performance & Safety Considerations
When it comes to smart glasses, battery performance and safety are paramount. Due to the close contact with the user’s skin and sensitive areas like around the eyes, batteries must meet strict standards:
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높은 에너지 밀도: Batteries need to deliver enough power to support features such as AR displays, cameras, and wireless connectivity, all while maintaining a small size.
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Stable Voltage Output: Consistent voltage is crucial to prevent device crashes or malfunctions during use.
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열 관리: Batteries must minimize heat generation and efficiently dissipate any heat to avoid discomfort or damage.
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Built-in Protection Circuits: Overcharge, over-discharge, short-circuit, and temperature protections are necessary to ensure long-term safety.
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Compliance with Safety Standards: Certifications like UL, UN38.3, IEC, and RoHS confirm that batteries meet international safety and environmental requirements.
Customization Options for Smart Glasses Batteries
Given the diversity of smart glasses designs, off-the-shelf batteries often can’t meet all requirements. Custom battery solutions provide manufacturers with several advantages:
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Shape and Size Customization: Batteries can be tailored to fit unique frame geometries and internal spaces, including curved or thin profiles.
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Capacity and Voltage Adjustment: Custom packs can be designed to meet specific power and runtime needs without excess weight.
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Connector and Interface Design: Custom terminals and protection circuits ensure seamless integration with the device’s electronics and charging system.
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향상된 안전 기능: Additional safety measures can be embedded depending on the use case and environmental conditions.
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Branding and Packaging: Batteries can be labeled or packaged according to brand specifications for OEM products.
Partnering with a specialized battery manufacturer enables smart glasses developers to optimize their products for performance, comfort, and safety.
LanDazzle Custom Battery Solutions for Smart Glasses
스마트 글래스 시장이 계속 발전함에 따라 특정 사용 사례, 폼 팩터 및 디자인 요구 사항을 충족하는 맞춤형 배터리 솔루션에 대한 수요가 증가하고 있습니다. 맞춤형 리튬 이온 및 리튬 폴리머 배터리의 선도적인 제조업체인 Lan Dazzle은 스마트 글래스용 고품질 맞춤형 배터리를 공급하는 데 핵심적인 역할을 하고 있습니다.
사용자 지정이 중요한 이유:
맞춤형 배터리를 사용하면 제조업체는 스마트 글래스 제품의 정확한 전력 요구 사항을 충족할 수 있습니다. 이는 공간과 무게가 중요한 웨어러블 시장에서 특히 중요합니다. 신뢰할 수 있는 맞춤형 배터리 제조업체와의 파트너십을 통해 기업은 고성능뿐 아니라 비용 효율적이고 특정 설계에 최적화된 배터리를 개발할 수 있습니다.
랜 대즐은 배터리 설계 및 생산에 대한 광범위한 전문 지식을 바탕으로 고객이 기술 사양을 충족하는 동시에 장기적인 신뢰성과 성능을 보장하는 배터리를 공급합니다.
스마트 안경 배터리의 미래
스마트 글래스 배터리의 미래에는 흥미로운 가능성이 있습니다. 전고체 배터리와 같은 배터리 화학의 발전은 더 높은 에너지 밀도, 더 빠른 충전 시간, 더 안전한 사용을 약속합니다. 또한 태양광 구동 렌즈와 같은 에너지 수확 기술의 혁신은 배터리 수명을 더욱 늘릴 수 있습니다.
스마트 글래스가 주류로 자리 잡으면서 배터리 기술은 사용자 경험을 향상시키고 더 효율적이고 오래 지속되며 가벼운 배터리를 개발하는 데 중요한 역할을 계속할 것입니다.
결론
스마트 글래스는 우리가 기술과 상호작용하는 방식에 혁신을 일으키고 있지만, 그 성공 여부는 안정적이고 효율적인 배터리의 개발에 크게 좌우됩니다. 현재 리튬 이온 및 리튬 폴리머 배터리가 이러한 기기에 전원을 공급하는 가장 일반적인 솔루션이지만, 미래에는 훨씬 더 혁신적인 솔루션이 등장할 수 있습니다. Lan Dazzle과 같은 맞춤형 배터리 제조업체와 협력함으로써 기업은 특정 요구 사항에 맞는 최상의 배터리 기술로 스마트 글래스를 구동할 수 있습니다.
