公开(公告)号：US20160268598A1

公开(公告)日：2016-09-15

申请号：US15165147

申请日：2016-05-26

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Kazutake KURIKI ,  Nobuhiro INOUE ,  Kiyofumi OGINO

IPC: H01M4/36 ,  H01G11/68 ,  H01M10/0525 ,  H01G11/72 ,  H01M4/38 ,  H01M10/0562

CPC classification number: H01M4/366 ,  H01G11/06 ,  H01G11/50 ,  H01G11/68 ,  H01G11/72 ,  H01M4/382 ,  H01M4/386 ,  H01M4/661 ,  H01M10/0525 ,  H01M10/0562 ,  H01M2004/027 ,  Y02E60/122 ,  Y02E60/13 ,  Y02T10/7022

Abstract: A power storage device which has improved performance such as higher discharge capacity and in which deterioration due to peeling or the like of an active material layer is less likely to be caused is provided. In an electrode for the power storage device, phosphorus-doped amorphous silicon is used for the active material layer over a current collector as a material that can be alloyed with lithium, and niobium oxide is deposited over the active material layer as a layer containing niobium. Accordingly, the capacity of the power storage device can be increased and the cycle characteristics and the charge-discharge efficiency can be improved.

Abstract translation: 提供了一种具有改善的性能的蓄电装置，例如较高的放电容量，并且由于活性材料层的剥离等而导致的劣化不大可能。 在蓄电装置的电极中，作为可与锂合金化的材料，在集电体上使用磷掺杂非晶硅作为活性物质层，在活性物质层上沉积氧化铌作为含有铌的层 。 因此，能够提高蓄电装置的容量，能够提高循环特性和充放电效率。