US 11,811,048 B2
Non-aqueous electrolyte solution battery and communication device
Kohei Watanabe, Kyoto (JP); Jun Yagisawa, Kyoto (JP); Miho Suzuki, Kyoto (JP); Kaoru Yabuki, Kyoto (JP); Koji Harada, Kyoto (JP); and Yushin Endo, Kyoto (JP)
Assigned to Murata Manufacturing Co., Ltd., Kyoto (JP)
Filed by MURATA MANUFACTURING CO., LTD., Kyoto (JP)
Filed on Feb. 27, 2020, as Appl. No. 16/803,516.
Application 16/803,516 is a continuation of application No. PCT/JP2018/031588, filed on Aug. 27, 2018.
Claims priority of application No. 2017-163033 (JP), filed on Aug. 28, 2017.
Prior Publication US 2020/0203709 A1, Jun. 25, 2020
Int. Cl. H01M 4/131 (2010.01); H01M 10/0525 (2010.01); H01M 10/42 (2006.01); H01M 10/056 (2010.01); H01M 4/62 (2006.01); H01M 4/80 (2006.01); H01M 50/489 (2021.01); H01M 50/119 (2021.01); H01M 50/167 (2021.01)
CPC H01M 4/131 (2013.01) [H01M 4/623 (2013.01); H01M 4/806 (2013.01); H01M 10/056 (2013.01); H01M 10/0525 (2013.01); H01M 10/425 (2013.01); H01M 50/119 (2021.01); H01M 50/167 (2021.01); H01M 50/489 (2021.01); H01M 2010/4278 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A non-aqueous electrolyte solution battery, comprising:
a positive electrode including manganese dioxide and a carbon material;
a negative electrode including one of lithium and a lithium alloy;
a non-aqueous electrolyte solution; and
a container including a positive electrode can configured to accommodate the positive electrode, the negative electrode, and the non-aqueous electrolyte solution,
wherein in a spectrum that is measured by performing Raman spectroscopic analysis with respect to the positive electrode by using argon laser at a wavelength of 514.5 nm, an average value of peak intensity ratios ID/IG of an intensity ID of a peak appearing in the vicinity of 1330 cm′ to an intensity IG of a peak appearing in the vicinity of 1580 cm′ satisfies a relationship of 0.5≤ID/IG≤1.3, and
a mass ratio M2/M1 of a mass M1 of the positive electrode to a mass M2 of the non-aqueous electrolyte solution satisfies a relationship of 0.22≤M2/M1≤0.40, wherein
the non-aqueous electrolyte solution battery further includes a conductive layer provided between a bottom portion of the positive electrode can and the positive electrode, and a bottom portion of the positive electrode is provided on the conductive layer;
an area ratio S1/S2 satisfies a relationship of 0.72≤S1/S2≤1.00, wherein S1 is a contact area where the conductive layer is in contact with the positive electrode, and an area S2 is an area of the bottom portion of the positive electrode;
the non-aqueous electrolyte solution includes cyclic carbonate including propylene carbonate and an ether compound including 1,2-dimethoxy ethane, wherein a mass ratio of the propylene carbonate to the 1,2-dimethoxy ethane is from 1:1 to 3:1, and
a content of a lithium perchlorate in the non-aqueous electrolyte solution is from 4 mass % to 10 mass %.