ボタン電池のサイズはどのくらいまで大きくなるのでしょうか？Power Gloryでは、9.5 mmから38 mmまでのさまざまなサイズをご用意しています。
How small is a coin cell battery? The smallest coin cell CR920PH produced by Power Glory measures just 9.5 mm in diameter, 2.0 mm in thickness, and weighs a mere 0.5 grams—so inconspicuous that it would go virtually unnoticed when mounted on a motherboard.
Yet, it is precisely this “infinitesimally small” battery that serves as the ultimate test of a company’s “grand capabilities.” As a battery shrinks in size, the requirements for materials, packaging, consistency, and reliability become nearly demanding to the point of severity; with space compressed to the millimeter scale, every increment of performance must be “wrested” from the manufacturing process itself.
Power Glory（証券コード：920237）の製品ラインナップは、この小さなCR920セルから始まり、直径38mm、容量850mAhのCR3832に至るまで、幅広いバリエーションを備えています。最小から最大まで網羅するこの広範な製品群は、リチウムマイクロ電源分野に20年以上専心し培ってきた同社の深い技術力を象徴しています。
I. Compact Size: A Testament to Both R&D and Manufacturing Prowess
The CR920 measures 9.5 mm in diameter and 2.0 mm in thickness, with a nominal capacity of 20 mAh and a total weight of just 0.55 grams. Within such a confined volume, Power Glory has achieved a nominal voltage of 3V and a maximum pulse current of 5mA, while utilizing unique encapsulation technology to keep the annual self-discharge rate below 2%.
小さなサイズには余剰が許されません。体積が縮小するほど、正極材料や電解液、シールリング、筐体といった部品において、寸法公差や組み立て精度の問題、不純物の影響などが指数関数的に増幅されます。Φ9.5×2.0mmという極小サイズの電池を安定して量産できる能力は、根本的に企業の研究開発力と製造技術の両面における優れた手腕の証なのです。
Ⅱ．幅広いスペクトラム：豊富な製品ラインナップの成果
Power GloryのCRシリーズの仕様表を見ると、多種多様なモデルが並んでいます。CR920、CR927、CR1025、CR1216、CR1220、CR1225、CR1616、CR1620、CR1632などから始まり、さらにCR2016、CR2025、CR2032、CR2050へと続き、その後はCR2320、CR2325、CR2330、CR2335、CR2354、CR2430、CR2450、CR2477、CR3032と続き、最後に最大サイズのCR3832に至るまで、標準温度での動作に対応した23種類ものモデルが揃っています。
では、この製品スペクトラムはどのくらい広いのでしょうか。直径は9.5mmから38.0mmまで、実に4倍もの範囲に及びます。
厚さも1.6mm（CR1216／CR1616／CR2016）から7.7mm（CR2477）まで、幅広く変化します。
容量は20mAh（CR920）から1000mAh（CR2477）まで、実に50倍もの差があります。
Yet, coin-type batteries represent only a portion of Power Glory’s “eight core lithium battery product” portfolio. This lineup includes lithium-manganese coin cells (standard CR series, as well as wide-temperature CR-HT, CR-D, and CR-T series), lithium-carbon monofluoride (BR) coin cells, rechargeable lithium-aluminum alloy (ML) coin cells, and lithium-ion supercapacitors (LSC series). Complemented by cylindrical lithium-manganese batteries, soft-pack lithium-manganese batteries, and custom battery assembly services, these offerings form a comprehensive product matrix—spanning from micro-sized to cylindrical, primary (non-rechargeable) to rechargeable, and individual cells to complete power solutions. Power Glory ensures that no matter how much space is allocated within a device, customers can always find the perfect fit; the sheer breadth of this product family inherently simplifies the selection process.
III. 厳しい動作条件でも安定した出力
Scaling up in size is not merely an increase in dimensions; it represents an expansion of performance boundaries. The smaller the device and the more extreme the operating environment, the more effectively a battery’s “true mettle” is put to the test:
極端な温度への耐性：超高温対応のCR/HTシリーズは、-40℃から125℃までの幅広い環境で動作可能です。特にタイヤ空気圧監視システム（TPMS）などの用途向けに設計されており、ホイールハブに直接取り付けられるため、高温環境と遠心力という過酷な条件下でも安定して機能します。一方、CR-TおよびBR（リチウム・カーボン・モノフルオライド）シリーズは、-40℃から85℃の温度範囲に対応しています。この広い温度帯により、これらのコインセル電池は、気候管理された屋内環境に留まらず、自動車、産業用機器、さらには屋外でのフィールドアプリケーションへと活躍の場を広げることができます。
Handling Pulse Currents: The high-capacity, high-power CR-P/H&X series offers 10%–20% more capacity than standard models of the same size. With a maximum continuous current of up to 20mA and pulse currents reaching 75mA, they are perfectly suited for the power requirements of devices like car key fobs, RFID tags, GPS units, and Electronic Shelf Labels (ESL)—which typically remain in a low-power, micro-ampere standby state, only to require a sudden burst of power for data transmission.
Ensuring Long-term Reliability: The HT series features an annual self-discharge rate of less than 1%. The ability to both “perform when needed” and “retain power during storage” represents the most fundamental—yet most challenging—promise for any micro-power source.
From motherboard real-time clocks to automotive key fobs; from electronic scales, POS terminals, and digital watches to medical instruments; and from smart home systems to data transmission for photovoltaic installations and natural gas pipelines—the application portfolio of Power Glory coin-cell batteries serves as an “invisible power map” for the era of the Internet of Things (IoT).
IV. 小さな部品、大きな責任
As tiny, easily overlooked components within a device, button batteries carry a critical mission: they must remain functional even when the main power supply is cut off. Power Glory meets this rigorous demand for reliability through a comprehensive system encompassing R&D, manufacturing, standardization, quality control, and risk management.
製造規模：安定した供給の基盤
Founded in 2004, Power Glory operates an R&D and manufacturing base spanning over 100 mu (approx. 6.7 hectares), supported by a professional team of approximately 650 employees and a monthly production capacity exceeding 66 million units. With about 60% of its products exported to markets including the United States, Germany, Sweden, Japan, South Korea, and India, the company has long provided ODM services to internationally renowned brands, demonstrating a robust capability for large-scale, global delivery.
標準化主導：業界のベンチマークを設定
Power Glory has participated in the drafting of five national standards, including “Primary Batteries – Part 1: General” (GB/T 8897.1-2021). As a vice-chair member of the China Lithium Battery Association, the company leverages its technical expertise to help shape industry standards.
包括的なシステムで、自動車グレードの品質に向けた堅固な基盤を築く
Power Glory holds certifications for ISO 9001, ISO 14001, ISO 45001, and the IATF 16949 automotive quality management system. It has been recognized as a National High-Tech Enterprise, a “Little Giant” firm (specializing in niche markets with cutting-edge technologies), and a “Green Factory” by the Ministry of Industry and Information Technology. To date, the company holds 91 patents—comprising 16 invention patents, 74 utility model patents, and 1 international patent—driving product upgrades through continuous innovation.
総合的なリスク軽減とエンドツーエンドの安全性確保
Power Glory’s products are covered by a $5 million global product liability insurance policy from CHUBB, providing risk protection across the entire lifecycle—from R&D to end-use—to ensure the safety of customers worldwide.
The history of Power Glory’s products is a chronicle of innovation, defined by the successful mastery of increasingly demanding requirements: smaller sizes, broader operating ranges, and resilience in more extreme environments. For over two decades, the company has remained steadfastly focused on miniature lithium power sources. In an era of the “Internet of Everything,” where devices are becoming smaller, thinner, and deployed in increasingly challenging environments, the company that can provide a comprehensive range of millimeter-scale power sources—capable of operating under diverse conditions with reliable delivery—effectively holds the “heart” of the smart device era.
Power Glory：小さなバッテリー、大きなエネルギー。
