US20010033972A1 - Lithium ion secondary battery - Google Patents
Lithium ion secondary battery Download PDFInfo
- Publication number
- US20010033972A1 US20010033972A1 US09/299,097 US29909799A US2001033972A1 US 20010033972 A1 US20010033972 A1 US 20010033972A1 US 29909799 A US29909799 A US 29909799A US 2001033972 A1 US2001033972 A1 US 2001033972A1
- Authority
- US
- United States
- Prior art keywords
- lithium ion
- active material
- secondary battery
- ion secondary
- power density
- 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
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07H—SUGARS; DERIVATIVES THEREOF; NUCLEOSIDES; NUCLEOTIDES; NUCLEIC ACIDS
- C07H19/00—Compounds containing a hetero ring sharing one ring hetero atom with a saccharide radical; Nucleosides; Mononucleotides; Anhydro-derivatives thereof
- C07H19/02—Compounds containing a hetero ring sharing one ring hetero atom with a saccharide radical; Nucleosides; Mononucleotides; Anhydro-derivatives thereof sharing nitrogen
- C07H19/04—Heterocyclic radicals containing only nitrogen atoms as ring hetero atom
- C07H19/16—Purine radicals
- C07H19/20—Purine radicals with the saccharide radical esterified by phosphoric or polyphosphoric acids
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07H—SUGARS; DERIVATIVES THEREOF; NUCLEOSIDES; NUCLEOTIDES; NUCLEIC ACIDS
- C07H19/00—Compounds containing a hetero ring sharing one ring hetero atom with a saccharide radical; Nucleosides; Mononucleotides; Anhydro-derivatives thereof
- C07H19/02—Compounds containing a hetero ring sharing one ring hetero atom with a saccharide radical; Nucleosides; Mononucleotides; Anhydro-derivatives thereof sharing nitrogen
- C07H19/04—Heterocyclic radicals containing only nitrogen atoms as ring hetero atom
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07K—PEPTIDES
- C07K1/00—General methods for the preparation of peptides, i.e. processes for the organic chemical preparation of peptides or proteins of any length
- C07K1/13—Labelling of peptides
Definitions
- the present invention relates to a lithium ion secondary battery used in a hybrid vehicle.
- 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.
- 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.
- 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.
- 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.
- 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 ⁇ m.
- FIG. 1 is a cross sectional view of a lithium ion secondary battery according to this invention.
- FIG. 2 is an enlarged view of a part A of FIG. 1.
- 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.
- 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.
- a lithium ion secondary battery comprises film-like positive electrodes 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 1 is formed by coating a positive electrode active material 6 on the surface of an aluminum current collector 5
- a negative electrode 3 is formed by coating a negative electrode active material 8 on the surface of a copper current collector 7 .
- Carbons such as graphite, mesophase carbon, hard carbon or low temperature burned carbon, metal oxides such as SnB x P y O z , Nb 2 O 5 , LiTi x O y , LiFe x N y and LiMn x N y , 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 1 ⁇ m particle size is used.
- the ordinate is relative power density when the power density for a coating thickness of 100 ⁇ m is one.
- the coating thickness is 100 ⁇ m, 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.
- the power density can be enhanced to more than twice its value for a coating thickness of 100 ⁇ m, 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 ⁇ m.
- 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 10 ⁇ m is one. It is required that the maximum particle size of the active material does not exceed the coating thickness.
- the particle size of the active material is 5 ⁇ m, the power density is enhanced to about twice its value for a particle size of 10 ⁇ m. 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 ⁇ m.
- the coating thickness of the active materials 6 and 8 is 5-80 ⁇ m and preferably 8-60 ⁇ m, and the particle size of the active materials 6 and 8 is smaller than 5 ⁇ m. As a result, a lithium ion secondary battery of high power density is obtained.
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Genetics & Genomics (AREA)
- Molecular Biology (AREA)
- Engineering & Computer Science (AREA)
- Biotechnology (AREA)
- Analytical Chemistry (AREA)
- Biophysics (AREA)
- Medicinal Chemistry (AREA)
- Proteomics, Peptides & Aminoacids (AREA)
- Peptides Or Proteins (AREA)
- Saccharide Compounds (AREA)
- Investigating Or Analysing Biological Materials (AREA)
- Battery Electrode And Active Subsutance (AREA)
- Secondary Cells (AREA)
- Measuring Or Testing Involving Enzymes Or Micro-Organisms (AREA)
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
- The present invention relates to a lithium ion secondary battery used in a hybrid vehicle.
- 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.
- 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.
- 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.
- 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.
- It is therefore an object of this invention to provide a lithium ion secondary battery of high power density.
- 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.
- 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.
- FIG. 1 is a cross sectional view of a lithium ion secondary battery according to this invention.
- FIG. 2 is an enlarged view of a part A of FIG. 1.
- 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.
- 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.
- Referring to FIG. 1 and FIG. 2 of the drawings, a lithium ion secondary battery comprises film-like positive electrodes1,
separators 2 andnegative electrode materials 3 which are laminated on each other and immersed in a non-aqueouselectrolytic solution 4. - The positive electrode1 is formed by coating a positive electrode
active material 6 on the surface of an aluminumcurrent collector 5, and anegative electrode 3 is formed by coating a negative electrodeactive material 8 on the surface of a copper current collector 7. - Here, metal oxides such as LiCoO2, 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 electrodeactive 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.
- 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.
- 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.
- 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.
- 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.
- Therefore, in this embodiment, the coating thickness of the
active materials active materials - The entire contents of Japanese Patent Applications P10-133070 (filed May 15, 1998) are incorporated herein by reference.
- 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.
- The scope of the invention is defined with reference to the following claims.
Claims (3)
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. A lithium ion secondary battery as defined in , wherein the coating thickness of said active material is 8-60 μm.
claim 1
3. A lithium ion secondary battery as defined in , wherein the particle size of said active material is smaller than 5 μm.
claim 1
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13317098A JP4240574B2 (en) | 1998-05-15 | 1998-05-15 | Protein labeling composition and protein labeling method |
JP10-133170 | 1998-05-15 |
Publications (1)
Publication Number | Publication Date |
---|---|
US20010033972A1 true US20010033972A1 (en) | 2001-10-25 |
Family
ID=15098325
Family Applications (4)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09/190,276 Expired - Lifetime 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 |
US09/299,097 Abandoned US20010033972A1 (en) | 1998-05-15 | 1999-04-26 | Lithium ion secondary battery |
US09/737,751 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 |
US09/794,128 Expired - Lifetime 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 |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09/190,276 Expired - Lifetime 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 |
Family Applications After (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09/737,751 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 |
US09/794,128 Expired - Lifetime 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 |
Country Status (2)
Country | Link |
---|---|
US (4) | US6228994B1 (en) |
JP (1) | JP4240574B2 (en) |
Cited By (8)
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 |
US20050233219A1 (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 |
US20160380314A1 (en) * | 2015-06-25 | 2016-12-29 | Samsung Electronics Co., Ltd. | Negative electrode for lithium metal battery and lithium metal battery including the same |
Families Citing this family (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 for detecting interacting proteins |
CA2372795A1 (en) * | 1999-07-12 | 2001-01-18 | Robert G. Kuimelis | C-terminal protein tagging |
WO2002046395A1 (en) * | 2000-12-07 | 2002-06-13 | Keio University | 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 |
JP2002253240A (en) * | 2001-02-27 | 2002-09-10 | Gencom Co | Analysis of intermolecular interaction |
JP2002257832A (en) * | 2001-02-27 | 2002-09-11 | Gencom Co | Protein labeling reagent |
WO2003014734A1 (en) * | 2001-08-07 | 2003-02-20 | Keio University | Method of detecting interaction between substance and protein, method of screening protein interacting with substance, and method of forming complex of substance and protein interacting with the substance |
WO2003048363A1 (en) * | 2001-12-07 | 2003-06-12 | Keio University | Complex of assigned molecule with c-end labeled protein, assigned molecule complex and methods of analyzing interaction between proteins using these complexes |
CA2482767A1 (en) * | 2002-04-22 | 2003-10-30 | Joseph F. Lawler, Jr. | Reagents for monitoring nuclei acid amplification and methods of using same |
AU2003231743A1 (en) * | 2002-04-23 | 2003-11-10 | California Institute Of Technology | Methods for evaluation of in vitro aminoacyl trnaproduction using matrix-assisted laser desorption/ionization time-of-flight mass spectrometry |
WO2004053121A1 (en) * | 2002-12-11 | 2004-06-24 | Keio University | PROTEIN FORMING COMPLEX WITH c-Fos PROTEIN, NUCLEIC ACID ENCODING THE SAME AND METHOD OF USING THE 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 | Polynucleotide for labeling protein synthesis |
JP2006211902A (en) * | 2003-07-29 | 2006-08-17 | Mitsubishi Chemicals Corp | Method for synthesizing protein having selectively labeled amino acid |
DE112004002217B4 (en) | 2003-11-19 | 2017-04-06 | Tokyo University Of Science Foundation | A protein-forming complex with a c-Jun protein, nucleic acid encoding the same and methods using the same |
US20060057069A1 (en) * | 2004-06-07 | 2006-03-16 | California Institute Of Technology | Detection of protein expression in vivo using fluorescent puromycin conjugates |
PT2339014E (en) | 2005-11-16 | 2015-10-13 | Ambrx Inc | 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 |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6361943B1 (en) * | 1996-10-17 | 2002-03-26 | Mitsubishi Chemical Corporation | Molecule that homologizes genotype and phenotype and utilization thereof |
ATE332368T1 (en) * | 1997-01-21 | 2006-07-15 | Gen Hospital Corp | SELECTION OF PROTEINS USING RNA-PROTEIN FUSIONS |
CA2372795A1 (en) * | 1999-07-12 | 2001-01-18 | Robert G. Kuimelis | C-terminal protein tagging |
-
1998
- 1998-05-15 JP JP13317098A patent/JP4240574B2/en not_active Expired - Lifetime
- 1998-11-13 US US09/190,276 patent/US6228994B1/en not_active Expired - Lifetime
-
1999
- 1999-04-26 US US09/299,097 patent/US20010033972A1/en not_active Abandoned
-
2000
- 2000-12-18 US US09/737,751 patent/US20010039011A1/en not_active Abandoned
-
2001
- 2001-02-28 US US09/794,128 patent/US7041446B2/en not_active Expired - Lifetime
Cited By (16)
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 |
US20050233219A1 (en) * | 2004-02-06 | 2005-10-20 | Gozdz Antoni S | 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 |
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 |
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 |
US7799461B2 (en) | 2004-02-06 | 2010-09-21 | A123 Systems, Inc. | 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 |
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 |
US20160380314A1 (en) * | 2015-06-25 | 2016-12-29 | Samsung Electronics Co., Ltd. | Negative electrode for lithium metal battery and lithium metal battery including the same |
Also Published As
Publication number | Publication date |
---|---|
JP4240574B2 (en) | 2009-03-18 |
US20010039011A1 (en) | 2001-11-08 |
US7041446B2 (en) | 2006-05-09 |
JPH11322781A (en) | 1999-11-24 |
US20010007751A1 (en) | 2001-07-12 |
US6228994B1 (en) | 2001-05-08 |
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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 |
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STCB | Information on status: application discontinuation |
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