公开(公告)号：EP1443584A4

公开(公告)日：2010-01-06

申请号：EP02762828

申请日：2002-08-23

Applicant: SONY CORP

Inventor： ADACHI MOMOE ,  FUJITA SHIGERU ,  ENDO TAKUYA ,  IWAKOSHI YASUNOBU ,  SHIBAMOTO GORO

IPC: H01M4/40 ,  H01M4/48 ,  H01M4/50 ,  H01M4/52 ,  H01M6/16 ,  H01M10/42 ,  H01M10/40 ,  H01M4/02 ,  H01M4/38 ,  H01M4/58

CPC classification number: H01M10/0525 ,  H01M4/38 ,  H01M4/382 ,  H01M4/387 ,  H01M4/405 ,  H01M4/485 ,  H01M4/505 ,  H01M4/525 ,  H01M10/0569 ,  H01M2010/4292 ,  H01M2300/0037

Abstract: A battery with a high battery voltage at charging and improved energy density is provided. A cathode (12) and an anode (14) are laminated with a separator (15) sandwiched therebetween which is impregnated with an electrolyte. The cathode (12) has a cathode active material including a lithium composite oxide which contains lithium, at least either cobalt or nickel, and oxygen. The battery voltage at charging is 4.25 V or more. The total amount of lithium carbonate and lithium sulphate in the cathode (12) to the cathode active material is 1.0 wt% or less, a concentration of protic impurities in the electrolyte, which is converted to a mass ratio of protons to the electrolyte, is 20 ppm or less, or moisture content in the electrolyte is 20 ppm mass ratio or less to the electrolyte. This inhibits metal eluting from the lithium composite oxide even at high voltages.

Abstract translation: 提供充电时具有高电池电压并提高能量密度的电池。 阴极（12）和阳极（14）与夹在其间的隔膜（15）层压，所述隔膜浸渍有电解质。 阴极（12）具有包含锂复合氧化物的正极活性材料，所述锂复合氧化物包含至少钴或镍中的至少一种的锂和氧。 充电时的电池电压为4.25 V或更高。 相对于正极活性物质，正极（12）中的碳酸锂和硫酸锂的总量为1.0重量％以下，电解质中的质子性杂质浓度换算为质子相对于电解质的质量比， 20ppm或更少，或者电解质中的水分含量相对于电解质为20ppm质量比或更少。 这抑制了即使在高电压下也从锂复合氧化物溶出的金属。

公开(公告)号：EP2445041A4

公开(公告)日：2013-06-19

申请号：EP10789606

申请日：2010-06-17

Applicant: SONY CORP

Inventor： WATANABE HARUO ,  OOYAMA TOMOYO ,  SAITO SHUNSUKE ,  KATAYAMA SHINICHI ,  KATO YOSHIKAZU ,  ANDO MUNEAKI ,  YAMADA ICHIRO ,  OKANO NOBUYA ,  ARAKI NORITOSHI ,  SUGITA SHUHEI ,  MORITA KOJI ,  KUDO YOSHIHIRO ,  NAKAI HIDEKI ,  HAYASHI KUNIHIKO ,  HOSOYA YOSUKE ,  KUBOTA TADAHIKO ,  FUJITA SHIGERU

IPC: H01M4/62 ,  C01G51/00 ,  C01G53/00 ,  H01M2/02 ,  H01M2/16 ,  H01M4/13 ,  H01M4/131 ,  H01M4/136 ,  H01M4/485 ,  H01M4/505 ,  H01M4/525 ,  H01M4/58 ,  H01M10/0525 ,  H01M10/0567 ,  H01M10/0587 ,  H01M10/42

CPC classification number: H01M10/4235 ,  C01G51/42 ,  C01G53/006 ,  C01G53/42 ,  C01P2002/52 ,  C01P2002/82 ,  C01P2002/89 ,  C01P2004/03 ,  C01P2004/61 ,  C01P2006/40 ,  H01M2/16 ,  H01M4/131 ,  H01M4/485 ,  H01M4/505 ,  H01M4/525 ,  H01M4/5825 ,  H01M4/621 ,  H01M4/623 ,  H01M10/0525 ,  H01M10/0567 ,  H01M10/0587

Abstract: Gas generation in a battery is suppressed, and high safety is realized. The battery is composed of a positive electrode in which a positive electrode active material layer including a positive electrode active material is formed on a positive electrode collector, a negative electrode in which a negative electrode active material layer including a negative electrode active material is formed on a negative electrode collector, a separator provided between the positive electrode and the negative electrode, and an electrolyte impregnated in the separator; and includes a heteropoly acid and/or heteropoly acid compound as an additive at least in one of the positive electrode, the negative electrode, the separator, and the electrolyte.

公开(公告)号：EP1137092A4

公开(公告)日：2009-03-18

申请号：EP00957079

申请日：2000-09-11

Applicant: SONY CORP

Inventor： FUJITA SHIGERU ,  AKASHI HIROYUKI ,  ADACHI MOMOE

IPC: H01M10/05 ,  H01M4/13 ,  H01M4/131 ,  H01M4/133 ,  H01M4/40 ,  H01M4/52 ,  H01M4/525 ,  H01M4/58 ,  H01M4/587 ,  H01M6/16 ,  H01M10/0525 ,  H01M10/0565 ,  H01M10/0568 ,  H01M10/0569 ,  H01M10/36 ,  H01M10/40

CPC classification number: H01M10/052 ,  H01M4/131 ,  H01M4/133 ,  H01M4/525 ,  H01M4/587 ,  H01M10/0525 ,  H01M10/0565 ,  H01M10/0567 ,  H01M10/0568 ,  H01M10/0569 ,  H01M2300/0042

Abstract: A secondary cell having a high energy density and improved charging/discharging characteristics is disclosed. A stack of a positive electrode (13), a negative electrode (15), and a separator (16) between the electrodes are accommodated in a can (11) which is filled with an electrolytic solution (17). The negative electrode (15) contains a negative electrode material that can occlude/release lithium ions, and metallic lithium is deposited on the negative electrode (15) when the open circuit voltage is lower than the overcharge voltage. Namely, in the initial period of charging, lithium ions are absorbed in the negative electrode material, and from a point of time during charging, metallic lithium is deposited on the negative electrode material. The deposition capacity of metallic lithium is preferably 0.05 to 3.0 times of the charge capacity of the negative electrode material. Thereby, high energy density and satisfactory cycle characteristics are achieved.

公开(公告)号：DE69205542T3

公开(公告)日：2001-06-07

申请号：DE69205542

申请日：1992-04-24

Applicant: SONY CORP

Inventor： YAMAMOTO YOSHIKATSU ,  FUJITA SHIGERU ,  KATO HISAYUKI

IPC: H01M2/34 ,  H01M4/52 ,  H01M4/525 ,  H01M10/052 ,  H01M10/36 ,  H01M10/42 ,  H01M10/40 ,  H01M4/58

Abstract: A nonaqueous electrolyte secondary battery in which, using Li x MO (where M is at least one of transition metals, preferably Co or Ni, and 0.05 & X & 1.10) as a positive electrode active material, the charge and discharge of the battery are performed by doping and dedoping lithium. The battery is provided with a means for shutting off current, which operates with the increase of the pressure of the inside of the battery. The means for shutting off current is operated surely by adding lithium carbonate to the positive electrode active material and by covering a part of the surface of the positive electrode with lithium carbonate. The quantity of lithium carbonate is 0.5-15 wt %, and the specific surface area is preferably 0.1 m /g or more.

公开(公告)号：CA2098531C

公开(公告)日：1997-12-23

申请号：CA2098531

申请日：1993-06-16

Applicant: MITSUI PETROCHEMICAL IND ,  SONY CORP

Inventor： YOKOYAMA KEIICHI ,  OMARU ATSUO ,  FUJITA SHIGERU ,  HIWARA AKIO

IPC: H01M10/0569 ,  H01M6/16

Abstract: Disclosed are a solvent for cell electrolyte comprising a carbamate represented by the following formula ¢1!; (see fig. I) wherein R1, R2 and R3 independently represent a linear or branched alkyl group. cell electrolyte and non-aqueous electrolyte battery comprising the solvent. The solvent can provide batteries showing high withstand voltage and excellent charge/discharge efficiency.

公开(公告)号：CA2153478A1

公开(公告)日：1996-01-08

申请号：CA2153478

申请日：1995-07-07

Applicant: MITSUI PETROCHEMICAL IND ,  SONY CORP

Inventor： YOKOYAMA KEIICHI ,  FUJITA SHIGERU ,  HIWARA AKIO ,  NARUSE YOSHIAKI ,  TORIIDA MASAHIRO ,  OMARU ATSUO

IPC: H01M6/16 ,  H01M10/052 ,  H01M10/0567 ,  H01M10/36

公开(公告)号：CA2103298A1

公开(公告)日：1994-05-19

申请号：CA2103298

申请日：1993-11-17

Applicant: MITSUI PETROCHEMICAL IND ,  SONY CORP

Inventor： YOKOYAMA KEIICHI ,  HIWARA AKIO ,  FUJITA SHIGERU ,  OMARU ATSUO

IPC: C07C69/96 ,  H01M6/16 ,  H01M10/0569

Abstract: A carbonate compound of formula (I): R CH2-O-CO-O-CH2R (I) wherein: R is a hydrogen atom, an alkyl group or an alkyl group substituted with one or more halogen atoms; and R is an alkyl group having no hydrogen atom at the alpha -position thereof or an alkyl group substituted with one or more halogen atoms and having no hydrogen atom at the alpha -position thereof; with the proviso that R is not identical to R .>

公开(公告)号：DE69309861T2

公开(公告)日：1997-09-11

申请号：DE69309861

申请日：1993-11-16

Applicant: SONY CORP ,  MITSUI PETROCHEMICAL IND

Inventor： YOKOYAMA KEIICHI ,  HIWARA AKIO ,  FUJITA SHIGERU ,  OMARU ATSUO

IPC: C07C69/96 ,  H01M6/16 ,  H01M10/0569 ,  H01M10/40

Abstract: A carbonate compound of formula (I): R CH2-O-CO-O-CH2R (I) wherein: R is a hydrogen atom, an alkyl group or an alkyl group substituted with one or more halogen atoms; and R is an alkyl group having no hydrogen atom at the alpha -position thereof or an alkyl group substituted with one or more halogen atoms and having no hydrogen atom at the alpha -position thereof; with the proviso that R is not identical to R .>

公开(公告)号：DE69508671T2

公开(公告)日：1999-10-14

申请号：DE69508671

申请日：1995-07-07

Applicant: MITSUI CHEMICALS ,  SONY CORP

Inventor： YOKOYAMA KEIICHI ,  FUJITA SHIGERU ,  HIWARA AKIO ,  NARUSE YOSHIAKI ,  TORIIDA MASAHIRO ,  OMARU ATSUO

IPC: H01M6/16 ,  H01M10/052 ,  H01M10/0567 ,  H01M10/40

公开(公告)号：DE69313364D1

公开(公告)日：1997-10-02

申请号：DE69313364

申请日：1993-06-17

Applicant: SONY CORP ,  MITSUI PETROCHEMICAL IND

Inventor： YOKOYAMA KEIICHI ,  HIWARA AKIO ,  FUJITA SHIGERU ,  OMARU ATSUO

IPC: H01M10/0569 ,  H01M10/40

Abstract: A solvent for cell electrolyte comprising a carbamate of formula (I): wherein R , R and R independently represent linear or branched alkyl groups may be used in batteries showing high withstand voltage and excellent charge/discharge efficiency.