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Better Batteries Could Soon Come to a Phone Near You
2025/6/26
WSJ Tech News Briefing
C
Christopher Mims
H
Hrithika Gunnar
R
Robert McMillan
Christopher Mims: 固态电池被誉为电池技术的圣杯，理论上拥有最快的充电速度和最高的能量密度。然而，在实际应用中，锂离子的移动会导致电池膨胀和收缩，进而引发电池破裂。为了解决这个问题，通常需要将电池置于特殊的金属外壳中，以限制其膨胀和收缩。与传统电池不同，传统电池中的锂离子可以在凝胶中自由移动，从而避免了膨胀和收缩的问题。Ion公司创新性地采用了一种新型固态电池，该电池使用陶瓷材料，陶瓷内部布满了微小孔洞，锂离子可以在其中自由移动。这种设计有效地避免了电池的膨胀和收缩，并且可以在现有的锂离子电池工厂中进行生产，无需新建大型工厂。美国国防部对Ion公司的新型电池进行了测试，结果表明其在多次充放电循环中表现出色。如果Ion公司的承诺能够兑现，那么消费电子产品领域将迎来革命性的变化，例如智能手机的续航时间将延长50%，智能眼镜也可以实现全天候使用。预计在未来的18个月到2年内，我们将能够看到首款采用Ion公司电池的消费电子产品。
Deep Dive
Solid-state batteries are the holy grail of battery technology, promising faster charging and higher energy density. However, the movement of lithium ions causes expansion and contraction, leading to cracking. Ion, a company using technology from fuel cells, has developed a more stable battery that doesn't require new factories to produce and shows promise for longer-lasting consumer electronics.
- Solid-state batteries are difficult to develop due to expansion and contraction issues.
- Ion's new battery uses ceramic technology to improve stability.
- The battery has been successfully tested by the Department of Defense.
- Consumer products with this battery could appear within 18 months to two years.
Shownotes Transcript