US 11,837,699 B2
All-solid lithium battery and method of manufacturing same
Yukinobu Yura, Nagoya (JP); Yukihisa Takeuchi, Nagoya (JP); Yosuke Sato, Nagoya (JP); Toshihiro Yoshida, Nagoya (JP); and Yuji Katsuda, Nagoya (JP)
Assigned to NGK INSULATORS, LTD., Nagoya (JP)
Filed by NGK INSULATORS, LTD., Nagoya (JP)
Filed on May 1, 2020, as Appl. No. 16/864,550.
Application 16/864,550 is a continuation of application No. PCT/JP2018/040687, filed on Nov. 1, 2018.
Claims priority of application No. 2017-217195 (JP), filed on Nov. 10, 2017; and application No. 2017-235918 (JP), filed on Dec. 8, 2017.
Prior Publication US 2020/0259217 A1, Aug. 13, 2020
Int. Cl. H01M 10/0585 (2010.01); H01M 10/0525 (2010.01); H01M 4/485 (2010.01); H01M 10/0562 (2010.01); H01M 50/431 (2021.01); H01M 50/434 (2021.01); H01M 50/489 (2021.01); H01M 4/02 (2006.01)
CPC H01M 10/0585 (2013.01) [H01M 4/485 (2013.01); H01M 10/0525 (2013.01); H01M 10/0562 (2013.01); H01M 50/431 (2021.01); H01M 50/434 (2021.01); H01M 50/489 (2021.01); H01M 2004/021 (2013.01); H01M 2300/0068 (2013.01)] 24 Claims
OG exemplary drawing
 
1. An all-solid lithium battery comprising:
an oriented positive electrode plate that is a lithium complex oxide sintered plate having a porosity of 10 to 50%, wherein the lithium complex oxide sintered plate contains a plurality of primary grains composed of lithium complex oxide, and the primary grains are oriented at a mean orientation angle of more than 0° to 30° to a main face of the oriented positive electrode plate;
a negative electrode plate that is a sintered plate containing Ti and capable of intercalating and deintercalating lithium ions at 0.4 V or higher (vs. Li/Li+); and
a solid electrolyte having a melting point lower than a melting point or pyrolytic temperature of the oriented positive electrode plate or the negative electrode plate, wherein at least 30% of pores in the oriented positive electrode plate is filled with the solid electrolyte in an observation of a cross-section perpendicular to a main face of the oriented positive electrode plate.