US20010033972A1 - Lithium ion secondary battery - Google Patents

Lithium ion secondary battery Download PDF

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Publication number
US20010033972A1
US20010033972A1 US09299097 US29909799A US2001033972A1 US 20010033972 A1 US20010033972 A1 US 20010033972A1 US 09299097 US09299097 US 09299097 US 29909799 A US29909799 A US 29909799A US 2001033972 A1 US2001033972 A1 US 2001033972A1
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Patent type
Prior art keywords
lithium ion
secondary battery
active material
ion secondary
μm
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
US09299097
Inventor
Mikio Kawai
Toyoaki Nakagawa
Hideaki Horie
Yuji Tanjo
Takaaki Abe
Ken Iwai
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Nissan Motor Co Ltd
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Nissan Motor Co Ltd
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    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07HSUGARS; DERIVATIVES THEREOF; NUCLEOSIDES; NUCLEOTIDES; NUCLEIC ACIDS
    • C07H19/00Compounds containing a hetero ring sharing one ring hetero atom with a saccharide radical; Nucleosides; Mononucleotides; Anhydro-derivatives thereof
    • C07H19/02Compounds containing a hetero ring sharing one ring hetero atom with a saccharide radical; Nucleosides; Mononucleotides; Anhydro-derivatives thereof sharing nitrogen
    • C07H19/04Heterocyclic radicals containing only nitrogen atoms as ring hetero atom
    • C07H19/16Purine radicals
    • C07H19/20Purine radicals with the saccharide radical esterified by phosphoric or polyphosphoric acids
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07HSUGARS; DERIVATIVES THEREOF; NUCLEOSIDES; NUCLEOTIDES; NUCLEIC ACIDS
    • C07H19/00Compounds containing a hetero ring sharing one ring hetero atom with a saccharide radical; Nucleosides; Mononucleotides; Anhydro-derivatives thereof
    • C07H19/02Compounds containing a hetero ring sharing one ring hetero atom with a saccharide radical; Nucleosides; Mononucleotides; Anhydro-derivatives thereof sharing nitrogen
    • C07H19/04Heterocyclic radicals containing only nitrogen atoms as ring hetero atom
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07KPEPTIDES
    • C07K1/00General methods for the preparation of peptides, i.e. processes for the organic chemical preparation of peptides or proteins of any length
    • C07K1/13Labelling of peptides

Abstract

A lithium ion secondary battery comprises a non-aqueous electrolytic solution, and a current collector which is coated with an active material and immersed in the electrolytic solution. By setting the coating thickness of said active material 5-80 μm, the power density of the lithium ion secondary battery is improved.

Description

    FIELD OF THE INVENTION
  • The present invention relates to a lithium ion secondary battery used in a hybrid vehicle. [0001]
  • BACKGROUND OF THE INVENTION
  • A lithium ion secondary battery disclosed by Tokkai Hei 5-29022 published in 1993 by the Japanese Patent Office, comprises positive/negative electrodes, an active material which performs a reversible electrochemical reaction with lithium ions, and a non-aqueous electrolytic solution which allows lithium ion transport. [0002]
  • The lithium ion secondary battery can be repeatedly charged and discharged, and since it is lightweight, it is also used as a battery of a hybrid vehicle. A hybrid vehicle is a vehicle provided with an engine and an electric motor as sources of drive force, and it can run on either or both of these sources. [0003]
  • SUMMARY OF THE INVENTION
  • In the low speed, low load region, the hybrid vehicle runs on the motor which has a higher performance than the engine in this region, and in the high speed, high load region, it runs on the engine which has a higher performance than the motor in this region. [0004]
  • The motor is mainly used during vehicle start, acceleration and deceleration. Therefore, the battery which supplies power to the motor must have a high power density so as to supply a large amount of power in a short time. [0005]
  • It is therefore an object of this invention to provide a lithium ion secondary battery of high power density. [0006]
  • In order to achieve the above object, this invention provides a lithium ion secondary battery comprising a non-aqueous electrolytic solution, and a current collector which is coated with an active material and immersed in the electrolytic solution. The coating thickness of the active material is set to 5-80 μm. [0007]
  • The details as well as other features and advantages of this invention are set forth in the remainder of the specification and are shown in the accompanying drawings.[0008]
  • BRIEF DESCRIPTION OF THE DRAWINGS
  • FIG. 1 is a cross sectional view of a lithium ion secondary battery according to this invention. [0009]
  • FIG. 2 is an enlarged view of a part A of FIG. 1. [0010]
  • FIG. 3 is a diagram showing the relation of the coating thickness of an active material and power density of the lithium ion secondary battery. [0011]
  • FIG. 4 is a diagram showing the relation of the particle size of the active material and power density of the lithium ion secondary battery.[0012]
  • DESCRIPTION OF THE PREFERRED EMBODIMENTS
  • Referring to FIG. 1 and FIG. 2 of the drawings, a lithium ion secondary battery comprises film-like positive electrodes [0013] 1, separators 2 and negative electrode materials 3 which are laminated on each other and immersed in a non-aqueous electrolytic solution 4.
  • The positive electrode [0014] 1 is formed by coating a positive electrode active material 6 on the surface of an aluminum current collector 5, and a negative electrode 3 is formed by coating a negative electrode active material 8 on the surface of a copper current collector 7.
  • Here, metal oxides such as LiCoO[0015] 2, LiNiO2, LiMn2O4, LixFeOy and LixVyOz, compound oxides wherein part of these elements are replaced by other elements, e.g., LixCoyMzO2 (M=Mn, Ni, V, etc.) or LixMnyMzO4 (M=Li, NI, Cr, Fe, Co, etc) where the metal element is replaced, or LixMn2O4-aFb and LixCoyNIzOwFa where oxygen is replaced by fluorine, are used for the positive electrode active material 6. Carbons such as graphite, mesophase carbon, hard carbon or low temperature burned carbon, metal oxides such as SnBxPyOz, Nb2O5, LiTixOy, LiFexNy and LiMnxNy, or nitrides, are used for the negative electrode active material 8.
  • FIG. 3 shows the relation of the coating thickness to power density when an active material of 1μm particle size is used. The ordinate is relative power density when the power density for a coating thickness of 100 μm is one. [0016]
  • When the coating thickness is 100 μm, the energy density increases but the internal resistance also increases and the interior of the active material no longer contributes to input/output of short-term large currents, therefore, the power density falls. [0017]
  • On the other hand, if the coating thickness of the active material is 5-80 μm as shown in FIG. 3, the power density can be enhanced to more than twice its value for a coating thickness of 100 μm, and if the coating thickness of the active material is 8-60 um, the power density can be further enhanced to about three or more times its value for a coating thickness of 100 μm. [0018]
  • FIG. 4 shows the relation of particle size of the active material to power density. The ordinate is relative power density when the power density for a particle size of 10μm is one. It is required that the maximum particle size of the active material does not exceed the coating thickness. [0019]
  • As seen from this figure, if the particle size of the active material is 5 μm, the power density is enhanced to about twice its value for a particle size of 10 μm. If the particle size is large, diffusion in the active material becomes slower and the power density declines, so to enhance the power density, the particle size should not exceed 5 μm. [0020]
  • Therefore, in this embodiment, the coating thickness of the active materials [0021] 6 and 8 is 5-80 μm and preferably 8-60 μm, and the particle size of the active materials 6 and 8 is smaller than 5 μm. As a result, a lithium ion secondary battery of high power density is obtained.
  • The entire contents of Japanese Patent Applications P10-133070 (filed May 15, 1998) are incorporated herein by reference. [0022]
  • Although the invention has been described above by reference to certain embodiments of the invention, the invention is not limited to the embodiments described above. The construction and materials of the battery are not limited to the construction and materials of the above-mentioned embodiment. Modifications and variations of the embodiments described above will occur to those skilled in the art, in light of the above teachings. [0023]
  • The scope of the invention is defined with reference to the following claims. [0024]

Claims (3)

    What is claimed:
  1. 1. A lithium ion secondary battery comprising:
    a non-aqueous electrolytic solution, and
    a current collector which is coated with an active material and immersed in said electrolytic solution,
    wherein the coating thickness of said active material is 5-80 μm.
  2. 2. A lithium ion secondary battery as defined in
    claim 1
    , wherein the coating thickness of said active material is 8-60 μm.
  3. 3. A lithium ion secondary battery as defined in
    claim 1
    , wherein the particle size of said active material is smaller than 5 μm.
US09299097 1998-05-15 1999-04-26 Lithium ion secondary battery Abandoned US20010033972A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP10-133170 1998-05-15
JP13317098A JP4240574B2 (en) 1998-05-15 1998-05-15 Labeling method of protein labeling composition and protein

Publications (1)

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US20010033972A1 true true US20010033972A1 (en) 2001-10-25

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US09190276 Active US6228994B1 (en) 1998-05-15 1998-11-13 Labeled protein and its producing method, labeling compound to be used in the method, and method for analyzing function of genes
US09299097 Abandoned US20010033972A1 (en) 1998-05-15 1999-04-26 Lithium ion secondary battery
US09737751 Abandoned US20010039011A1 (en) 1998-05-15 2000-12-18 Labeled protein and its producing method, labeling compound to be used in the method, and method for analyzing function of genes
US09794128 Active 2019-03-23 US7041446B2 (en) 1998-05-15 2001-02-28 Labeled protein and its producing method, labeling compound to be used in the method, and method for analyzing function of genes

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US09190276 Active US6228994B1 (en) 1998-05-15 1998-11-13 Labeled protein and its producing method, labeling compound to be used in the method, and method for analyzing function of genes

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US09737751 Abandoned US20010039011A1 (en) 1998-05-15 2000-12-18 Labeled protein and its producing method, labeling compound to be used in the method, and method for analyzing function of genes
US09794128 Active 2019-03-23 US7041446B2 (en) 1998-05-15 2001-02-28 Labeled protein and its producing method, labeling compound to be used in the method, and method for analyzing function of genes

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6920167B2 (en) 1999-05-27 2005-07-19 Sony Corporation Semiconductor laser device and method for fabricating thereof
US20050233220A1 (en) * 2004-02-06 2005-10-20 Gozdz Antoni S Lithium secondary cell with high charge and discharge rate capability
US20060240290A1 (en) * 2005-04-20 2006-10-26 Holman Richard K High rate pulsed battery
US20070166617A1 (en) * 2004-02-06 2007-07-19 A123 Systems, Inc. Lithium secondary cell with high charge and discharge rate capability and low impedance growth
US7713313B1 (en) * 2006-04-13 2010-05-11 Lithdyne Llc Process for preparing lithium manganate
US7879486B2 (en) 2002-01-15 2011-02-01 Quallion Llc Electric storage battery construction and method of manufacture
US8080329B1 (en) 2004-03-25 2011-12-20 Quallion Llc Uniformly wound battery

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US7433035B2 (en) * 1998-06-29 2008-10-07 San Diego State University Research Foundation Detection of carbon halogen bonds
JP4493125B2 (en) * 1999-05-07 2010-06-30 独立行政法人理化学研究所 Method of detecting a protein that interacts
EP1194594A4 (en) * 1999-07-12 2005-06-01 Compound Therapeutics Inc C-terminal protein tagging
EP1350846A4 (en) * 2000-12-07 2005-01-26 Univ Keio C-terminal modified protein and process for producing the same, modifying agent and translation template to be used in produfing c-terminal modified protein, and method of detecting protein interaction with the use of c-termial modified protein
WO2002074950A1 (en) * 2001-02-27 2002-09-26 Mitsubishi Chemical Corporation Method of analyzing intermolecular interaction
JP2002257832A (en) * 2001-02-27 2002-09-11 Gencom Co Protein labeling reagent
JP3706942B2 (en) * 2001-08-07 2005-10-19 学校法人慶應義塾 Method for detecting an interaction between the substance and protein, the screening method of the protein that interacts with matter, and method of forming a complex with protein that interacts material and its material
JP4030019B2 (en) * 2001-12-07 2008-01-09 学校法人慶應義塾 The assigning molecule and conjugates of complex and assigning molecule of c-terminal labeled proteins, and protein-protein interaction analysis method using these composite
WO2003089670A3 (en) * 2002-04-22 2004-02-05 Joseph F Lawler Jr Reagents for monitoring nuclei acid amplification and methods of using same
EP1596187A4 (en) * 2003-02-10 2006-08-30 Mitsubishi Chem Corp Method of nmr measurement of protein
JPWO2004113530A1 (en) * 2003-06-18 2006-08-03 三菱化学株式会社 Labeled protein synthesis polynucleotide
EP1666603A1 (en) * 2003-07-29 2006-06-07 Mitsubishi Chemical Corporation Method of synthesizing amino-acid-selectively labeled protein
JP5587528B2 (en) * 2003-11-19 2014-09-10 国立大学法人 東京大学 c-Jun protein and protein to form a complex, and the nucleic acid encoding the same, as well as methods for their use
US20060057069A1 (en) * 2004-06-07 2006-03-16 California Institute Of Technology Detection of protein expression in vivo using fluorescent puromycin conjugates
CN101454461A (en) 2005-11-16 2009-06-10 Ambrx公司 Methods and compositions comprising non-natural amino acids
US7749957B2 (en) 2006-04-06 2010-07-06 E.I. Du Pont De Nemours And Company Clay-binding peptides and methods of use
US7951559B2 (en) * 2007-07-25 2011-05-31 E.I. Du Pont De Nemours And Company Recombinant peptide production using a cross-linkable solubility tag

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DE69730157T2 (en) 1996-10-17 2005-07-28 Mitsubishi Chemical Corp. Molecule which brings together genotype and phenotype and its applications
DE69835143T2 (en) * 1997-01-21 2007-06-06 The General Hospital Corp., Boston Selection of proteins using RNA-protein fusions
EP1194594A4 (en) * 1999-07-12 2005-06-01 Compound Therapeutics Inc C-terminal protein tagging

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6920167B2 (en) 1999-05-27 2005-07-19 Sony Corporation Semiconductor laser device and method for fabricating thereof
US7879486B2 (en) 2002-01-15 2011-02-01 Quallion Llc Electric storage battery construction and method of manufacture
US20080169790A1 (en) * 2004-02-06 2008-07-17 A123 Systems, Inc. Lithium secondary cell with high charge and discharge rate capability
US8617745B2 (en) 2004-02-06 2013-12-31 A123 Systems Llc Lithium secondary cell with high charge and discharge rate capability and low impedance growth
US20070166617A1 (en) * 2004-02-06 2007-07-19 A123 Systems, Inc. Lithium secondary cell with high charge and discharge rate capability and low impedance growth
US7261979B2 (en) 2004-02-06 2007-08-28 A123 Systems, Inc. Lithium secondary cell with high charge and discharge rate capability
US7348101B2 (en) 2004-02-06 2008-03-25 A123 Systems, Inc. Lithium secondary cell with high charge and discharge rate capability
US20050233219A1 (en) * 2004-02-06 2005-10-20 Gozdz Antoni S Lithium secondary cell with high charge and discharge rate capability
US8080338B2 (en) 2004-02-06 2011-12-20 A123 Systems, Inc. Lithium secondary cell with high charge and discharge rate capability
US7799461B2 (en) 2004-02-06 2010-09-21 A123 Systems, Inc. Lithium secondary cell with high charge and discharge rate capability
US20050233220A1 (en) * 2004-02-06 2005-10-20 Gozdz Antoni S Lithium secondary cell with high charge and discharge rate capability
US9608292B2 (en) 2004-02-06 2017-03-28 A123 Systems Llc Lithium secondary cell with high charge and discharge rate capability and low impedance growth
US8080329B1 (en) 2004-03-25 2011-12-20 Quallion Llc Uniformly wound battery
US20060240290A1 (en) * 2005-04-20 2006-10-26 Holman Richard K High rate pulsed battery
US7713313B1 (en) * 2006-04-13 2010-05-11 Lithdyne Llc Process for preparing lithium manganate

Also Published As

Publication number Publication date Type
JPH11322781A (en) 1999-11-24 application
US20010039011A1 (en) 2001-11-08 application
US7041446B2 (en) 2006-05-09 grant
US6228994B1 (en) 2001-05-08 grant
JP4240574B2 (en) 2009-03-18 grant
US20010007751A1 (en) 2001-07-12 application

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AS Assignment

Owner name: NISSAN MOTOR CO., LTD, JAPAN

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:KAWAI, MIKIO;NAKAGAWA, TOYOAKI;HORIE, HIDEAKI;AND OTHERS;REEL/FRAME:009925/0466

Effective date: 19990409