公开(公告)号：US20240258567A1

公开(公告)日：2024-08-01

申请号：US18436508

申请日：2024-02-08

Applicant: MURATA MANUFACTURING CO., LTD.

Inventor： Yurika UENO ,  Kohei WATANABE ,  Jun YAGISAWA

IPC: H01M10/0567 ,  H01M4/02 ,  H01M4/50 ,  H01M4/62 ,  H01M4/76 ,  H01M10/0568 ,  H01M10/0569 ,  H01M50/193

CPC classification number: H01M10/0567 ,  H01M4/502 ,  H01M4/623 ,  H01M4/625 ,  H01M4/76 ,  H01M10/0568 ,  H01M10/0569 ,  H01M50/193 ,  H01M2004/021 ,  H01M2004/028 ,  H01M2300/0037

Abstract: A non-aqueous electrolytic solution battery is provided and including a positive electrode containing a positive electrode mixture containing manganese dioxide, a negative electrode containing a lithium element, and a non-aqueous electrolytic solution, in which in an X-ray photoelectron spectroscopy (XPS) spectrum of the positive electrode mixture, a peak intensity ratio I2/I1 of Mn2p3/2 satisfies a following formula (1)







0.3
≦


I
2


I
1


≦
0.55




(
1
)







in the formula (1), I1 represents a peak intensity at a binding energy of 642 eV, and I2 represents a peak intensity at a binding energy of 640 eV.

公开(公告)号：US20230327140A1

公开(公告)日：2023-10-12

申请号：US18209781

申请日：2023-06-14

Applicant: MURATA MANUFACTURING CO., LTD.

Inventor： Kohei WATANABE ,  Minoru ONUMA ,  Masaki SUGENO

IPC: H01M6/16 ,  H01M4/06 ,  H01M4/50 ,  H01M4/38 ,  H01M4/66

CPC classification number: H01M6/168 ,  H01M4/06 ,  H01M6/164 ,  H01M4/50 ,  H01M4/382 ,  H01M4/662 ,  H01M4/663 ,  H01M2300/0037

Abstract: A primary battery includes a positive electrode, a negative electrode, and an electrolytic solution. The positive electrode includes manganese dioxide. The negative electrode includes a lithium-based material. The electrolytic solution includes an alkali metal compound represented by Formula (1) and a dicarboxylic anhydride compound represented by Formula (2).


MeN(CxF2x+1SO2)(CyF2y+1SO2)  (1)



where:
Me is an alkali metal element; and
x and y are each an integer of 0 or greater.






W(—C(═O)—O—C(═O)—)z  (2)



where:
W is a benzene-based aromatic ring from which 2z-number of hydrogen atoms are eliminated; and
z is an integer of 2 or greater.