公开(公告)号：US20160351955A1

公开(公告)日：2016-12-01

申请号：US15157486

申请日：2016-05-18

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： TAKAYUKI NAKATSUTSUMI ,  MAYUMI MAENISHI ,  NOBUHIKO HOJO

IPC: H01M10/0564 ,  H01M4/133 ,  H01M4/131 ,  H01M10/0525

CPC classification number: H01M10/0525 ,  H01M4/505 ,  H01M4/525 ,  H01M4/587 ,  H01M10/052 ,  H01M10/0567 ,  H01M10/0568 ,  H01M10/0569 ,  H01M2300/0034 ,  H01M2300/0037

Abstract: An electrolyte solution contains a non-aqueous solvent and an alkali metal salt dissolved in the non-aqueous solvent. The non-aqueous solvent contains a linear carboxylate represented by the following formula: where R1 and R2 independently represent an aromatic group, an unsaturated aliphatic group, or a saturated aliphatic group. A battery includes the electrolyte solution, a positive electrode containing a positive electrode active material that has a property of occluding and releasing an alkali metal ion, and a negative electrode containing an alkali metal or a negative electrode active material that has a property of occluding and releasing the alkali metal ion.

Abstract translation: 其中R1和R2独立地表示芳族基团，不饱和脂族基团或饱和脂族基团。 电池包括电解质溶液，含有具有闭塞和释放碱金属离子的性质的正极活性物质的正极和含有碱金属或负极活性物质的负极，所述碱金属或负极活性物质具有阻塞和/ 释放碱金属离子。

公开(公告)号：US20180337423A1

公开(公告)日：2018-11-22

申请号：US15959290

申请日：2018-04-23

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： TETSUYUKI OKANO ,  TAKAYUKI NAKATSUTSUMI ,  MAYUMI MAENISHI ,  MASAHIRO TAKAHATA ,  JUNKO MATSUSHITA ,  AKIRA KANO ,  NOBUHIKO HOJO

IPC: H01M10/0525 ,  H01M4/133 ,  H01M4/583 ,  H01M4/134 ,  H01M4/525 ,  H01M4/66 ,  H01M2/06

Abstract: A negative-electrode active material comprises a graphite including boron and nitrogen. A ratio R1 satisfies 0.5≤R1≤1, where R1=SBN/SB, and SB denotes a total peak area of a boron 1s spectrum of the graphite obtained by X-ray photoelectron spectroscopy, and SBN denotes a peak area of a spectrum assigned to boron bonded to nitrogen in the boron 1s spectrum. A ratio R2 satisfies 0

公开(公告)号：US20180337399A1

公开(公告)日：2018-11-22

申请号：US15974490

申请日：2018-05-08

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： NOBUHIKO HOJO ,  TAKAYUKI NAKATSUTSUMI ,  TETSUYUKI OKANO ,  MAYUMI MAENISHI ,  MASAHIRO TAKAHATA

IPC: H01M4/36 ,  H01M4/38 ,  H01M4/587 ,  H01M10/0525 ,  H01M10/0569

CPC classification number: H01M4/587 ,  H01M4/134 ,  H01M10/0525 ,  H01M10/0569 ,  H01M2300/0034

Abstract: A negative electrode active material for a nonaqueous secondary battery includes graphite containing boron. The graphite has an average discharge potential of 0.16 V or more and 0.2 V or less, based on Li. A nonaqueous secondary battery includes: a positive electrode including a positive electrode active material capable of occluding and releasing an alkali metal ion; a negative electrode including a negative electrode active material above; and a nonaqueous electrolyte solution.

公开(公告)号：US20180337398A1

公开(公告)日：2018-11-22

申请号：US15974312

申请日：2018-05-08

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： MAYUMI MAENISHI ,  TAKAYUKI NAKATSUTSUMI ,  TETSUYUKI OKANO ,  NOBUHIKO HOJO

IPC: H01M4/36 ,  H01M4/38 ,  H01M4/587 ,  H01M10/0525 ,  H01M10/0569

Abstract: A negative electrode active material for a nonaqueous secondary battery includes graphite containing boron. The graphite has a crystallite size Lc of 100 nm or more in the c-axis direction, In a Raman spectrum obtained by Raman spectroscopy of a surface of the graphite, a ratio R is 0.4 or more, the ratio R being a ratio of a maximum peak value Id of Raman intensity of a D band appearing in a Raman shift range of 1300 cm−1 or more and 1400 cm−1 or less to a maximum peak value Ig of Raman intensity of a G band appearing in a Raman shift range of 1500 cm−1 or more and 1650 cm−1 or less.

公开(公告)号：US20160351960A1

公开(公告)日：2016-12-01

申请号：US15158594

申请日：2016-05-19

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： TAKAYUKI NAKATSUTSUMI ,  MAYUMI MAENISHI ,  NOBUHIKO HOJO

IPC: H01M10/0565 ,  H01M4/131 ,  H01M4/134 ,  H01M10/0525

CPC classification number: H01M10/0525 ,  H01M4/485 ,  H01M10/0413 ,  H01M10/0436 ,  H01M10/0567 ,  H01M10/0569 ,  H01M2300/0025 ,  H01M2300/0037

Abstract: An electrolyte solution contains a non-aqueous solvent and an alkali metal salt dissolved in the non-aqueous solvent. The non-aqueous solvent contains cyclopropanecarbonitrile. A battery includes an electrolyte solution which contains a non-aqueous solvent containing cyclopropanecarbonitrile and an alkali metal salt dissolved in the non-aqueous solvent, a positive electrode containing a positive electrode active material that has a property of occluding and releasing an alkali metal ion, and a negative electrode containing an alkali metal or a negative electrode active material that has a property of occluding and releasing the alkali metal ion.

Abstract translation: 电解质溶液含有溶解在非水溶剂中的非水溶剂和碱金属盐。 非水溶剂含有环丙腈。 电池包括含有溶解在非水溶剂中的环丙烷腈和碱金属盐的非水溶剂的电解质溶液，含有具有吸留和释放碱金属离子性质的正极活性物质的正极， 以及含有碱金属或负极活性物质的负极，其具有吸留和释放碱金属离子的性质。