公开(公告)号：US20180145333A1

公开(公告)日：2018-05-24

申请号：US15730912

申请日：2017-10-12

Applicant: HONDA MOTOR CO., LTD.

Inventor： Toshio TOKUNE ,  Takuya NISHINUMA ,  Takahiro KOMORI ,  Kenshi INOUE ,  Kiyoshi TANAAMI ,  Takashi NAKAGAWA

IPC: H01M4/66 ,  H01M4/36 ,  C01B32/16 ,  H01M4/04 ,  H01M4/62 ,  H01M4/76 ,  H01M4/88

Abstract: Provided is an electrode mixture layer capable of reducing internal resistance by use of a carbon nanotube molding. The electrode mixture layer includes an active material and a conductor of carbon nanotubes in close contact with the surface of the active material, and the number density of the carbon nanotubes is 4 tubes/μm or more. The number density is defined as a value obtained by providing measurement lines on a scanning electron microscope image of a surface of the electrode mixture layer at 0.3 μm intervals both longitudinally and laterally, measuring the total number of the carbon nanotubes being in close contact with the surface of the active material and intersecting the measurement lines, and dividing the total number of the carbon nanotubes by the total length of the measurement lines on the active material surface.

公开(公告)号：US20140238550A1

公开(公告)日：2014-08-28

申请号：US14185325

申请日：2014-02-20

Applicant: HONDA MOTOR CO., LTD.

Inventor： Kenshi INOUE

IPC: H01M4/46 ,  C23C14/34

CPC classification number: H01M4/463 ,  C22C21/06 ,  C22C45/08 ,  C23C14/165 ,  C23C14/3464 ,  H01M10/0525

Abstract: A negative electrode active material for a secondary battery contains an aluminum alloy. The internal structure of the aluminum alloy has a crystalline aluminum phase in a magnesium-supersaturated solid solution state, and an amorphous aluminum phase. The amorphous aluminum phase is dispersed in the crystalline aluminum phase in the magnesium-supersaturated solid solution state. Each of these phases has a columnar shape. The magnesium content of the aluminum alloy preferably is greater than 22 at % and less than 35 at %, and more preferably, lies within a range of 25±2 at %.

Abstract translation: 二次电池用负极活性物质含有铝合金。 铝合金的内部结构具有镁过饱和固溶态的结晶铝相和无定形铝相。 无定形铝相以镁过饱和固溶态分散在结晶铝相中。 这些相中的每一个具有柱状。 铝合金的镁含量优选大于22原子％且小于35原子％，更优选在25±2原子％的范围内。