ルマフィールドバッテリー品質レポート
Every year, Amazon ships hundreds of millions of consumer electronics devices—Fire tablets, Echo speakers, Kindle readers, Ring cameras, Blink security systems, and more—directly into homes around the world. At that scale, even small rates of quality variation compound into enormous exposure.
We scanned a sample of Blink cameras and the Energizer lithium-ion batteries they use to examine what lies beneath the surface of one of the world’s largest consumer electronics supply chains.
30
Energizer lithium-ion batteries CT scanned and analyzed, plus 3 Blink Camera 4 assemblies.
2x
worse cathode edge alignment in batteries pulled from the Blink Camera 4 units compared to the full sample median.
20.5%
mean QFN porosity across the three camera units, indicating strong process assembly process control.
1054 件中 33 件
electronics ecommerce return rate in 2024, with most returns driven by damage or functionality failures.
33
electronics recalls in 2024, roughly 10% of all CPSC consumer product recalls that year.
13 件中 1 件
in annual revenue for global consumer electronics.
Consumer electronics recalls hit their second-highest level in six years in 2024, and return rates for electronics now sit at 16%. These high figures are most often driven by damage or functionality failures, as quality issues that originate deep in the supply chain surface after a product is already in a customer's hands.
Lumafield scanned 3 Blink Camera 4 units and 30 of the Energizer lithium-ion batteries those cameras ship with, to see what CT reveals about the quality of the supply chain behind one of the world's largest consumer electronics businesses.
Our automated analysis focused on cathode edge alignment, which is a key indicator of winding precision that directly impacts cell lifespan and performance, along with full assembly deviation analysis and solder joint quality across the camera units.
私たちが見つけたのは憂慮すべきことでした:
安全上のリスク
18650はすべて同じ18 mm x 65 mmの缶を使用していますが、安全性はゼリーロールにあります。CTでは、アノードのオーバーハングとエッジのアライメント、つまりリチウムメッキとショートを支配する形状を確認できます。
Battery variation
売り手は信頼できるモデル名を真似してラップし、スペックを膨らませます。当社では、Samsungの30Qブランドを模倣し、9900mAhというクレームを、通常約3000mAhのフォーマットでコピーした出品情報を文書化しました。
Consistent assembly
低コストのロットでは、スプレッドが広く、外れ値が極端でした。あるブランドの中央値が許容範囲内であるように見えても、多くのセルがアノードオーバーハングの目標値を約0.500 mm下回り、アライメントのばらつきはOEM企業よりもはるかに大きかった。
バッテリー品質レポートの全文をダウンロードして、以下をご確認ください。
- An in-depth explanation of what CT reveals in consumer electronic assemblies and batteries
- Findings across the full 30-cell sample
- Insights into the investigation methodology, including Lumafield's cutting-edge CT scanning and automated analysis techniques
- What scaled CT inspection would make possible across Amazon's global contract manufacturing footprint
産業用X線CTがどのようにリチウムイオン電池サプライチェーンに潜む危険を特定し、削減するのに役立つかをご覧ください。
