BlobNotFoundThe specified blob does not exist. RequestId:14412268-d01e-008c-79af-e37532000000 Time:2019-03-26T08:42:24.7167146ZBlobNotFoundThe specified blob does not exist. RequestId:4a355642-a01e-00aa-33af-e3ee86000000 Time:2019-03-26T08:42:24.7232918Z
BlobNotFoundThe specified blob does not exist. RequestId:cf5631d7-a01e-0029-61af-e34e2b000000 Time:2019-03-26T08:42:24.7247433Z
BlobNotFoundThe specified blob does not exist. RequestId:4e1a7061-101e-0030-25af-e36243000000 Time:2019-03-26T08:42:24.7988015Z
BlobNotFoundThe specified blob does not exist. RequestId:34101b80-901e-002a-0baf-e34d2c000000 Time:2019-03-26T08:42:24.7972865Z

更多 精彩视频排行

网友评分最高

BlobNotFoundThe specified blob does not exist. RequestId:49ae1eb8-501e-0111-51af-e34927000000 Time:2019-03-26T08:42:24.7973767Z

首播

重播

  锂空气电池相比锂离子电池的优势是减轻重量和复杂度,其潜在蓄电量可达到最好锂离子电池的十倍。但一个重大缺陷是它在多次充放电后性能下降电池不稳定。现在,研究人员报告他们研制出第一种稳定可靠的锂空气电池,虽然离实用性还相当遥远,因为它使用的材料是黄金,但未来锂空气电池电动汽车的行驶距离将能接近今天的汽油汽车

  研究人员用惰性黄金纳米粒子替代常用的基于碳的阴极材料,用导电溶剂二甲基亚砜(DMSO)替代聚碳酸酯作为电解液。结果显示,新的电池在100次充电放电周期后,性能仍然能达到原来的95%。

BlobNotFoundThe specified blob does not exist. RequestId:165d0ea1-701e-00a3-22af-e3f408000000 Time:2019-03-26T08:42:25.0130748Z
BlobNotFoundThe specified blob does not exist. RequestId:15bd9161-c01e-0098-18af-e3b656000000 Time:2019-03-26T08:42:25.0134099Z