WO2017122251A1 - Batterie secondaire à électrolyte non aqueux - Google Patents

Batterie secondaire à électrolyte non aqueux Download PDF

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Publication number
WO2017122251A1
WO2017122251A1 PCT/JP2016/005175 JP2016005175W WO2017122251A1 WO 2017122251 A1 WO2017122251 A1 WO 2017122251A1 JP 2016005175 W JP2016005175 W JP 2016005175W WO 2017122251 A1 WO2017122251 A1 WO 2017122251A1
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Prior art keywords
negative electrode
current collector
positive electrode
active material
electrode plate
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PCT/JP2016/005175
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English (en)
Japanese (ja)
Inventor
広太 小川
孝一 草河
長谷川　和弘
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三洋電機株式会社
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Publication of WO2017122251A1 publication Critical patent/WO2017122251A1/fr

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/531—Electrode connections inside a battery casing
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/05—Accumulators with non-aqueous electrolyte
    • H01M10/058—Construction or manufacture
    • H01M10/0587—Construction or manufacture of accumulators having only wound construction elements, i.e. wound positive electrodes, wound negative electrodes and wound separators
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/36—Selection of substances as active materials, active masses, active liquids
    • H01M4/48—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides
    • H01M4/52—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron
    • H01M4/525—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50—Manufacturing or production processes characterised by the final manufactured product

Definitions

  • the present invention relates to a non-aqueous electrolyte secondary battery having a current collecting structure suitable for high output.
  • nonaqueous electrolyte secondary batteries have been widely used as drive power sources for portable electronic devices such as smartphones, tablet computers, notebook computers, and portable music players.
  • Applications of non-aqueous electrolyte secondary batteries are expanding to electric tools, electric assist bicycles, electric vehicles, and the like, and higher output is required for non-aqueous electrolyte secondary batteries.
  • an electrode body in which a positive electrode plate and a negative electrode plate are laminated or wound via a separator is accommodated in an exterior body.
  • the positive electrode plate and the negative electrode plate constituting the electrode body are electrically connected to external terminals of the positive electrode and the negative electrode through leads, respectively.
  • the sealing body and the outer can are insulated by a gasket.
  • the lead connected to the positive electrode plate is connected to the sealing body, and the lead connected to the negative electrode plate is connected to the bottom of the outer can. That is, in the cylindrical nonaqueous electrolyte secondary battery, the sealing body and the outer can function as the external terminals of the positive electrode and the negative electrode, respectively.
  • Non-aqueous electrolyte secondary batteries often have leads connected to one end in the length direction of the electrode plate.
  • non-aqueous electrolyte secondary batteries in which a plurality of leads are connected to an electrode plate have been developed due to the recent increase in demand for higher output.
  • Patent Document 1 discloses a non-aqueous electrolyte secondary battery in which a negative electrode lead is connected to both ends of the negative electrode plate in the length direction, and a positive electrode lead is connected to a central portion of the positive electrode plate in the length direction.
  • Patent Document 2 discloses a current collecting structure in which a negative electrode current collector exposed at the outermost periphery of an electrode body is brought into contact with an inner surface of the outer can as a means for electrically connecting the negative electrode plate to the outer can.
  • a technique has been proposed in which the outer diameter of the outer can is reduced after the electrode body is inserted into the outer can.
  • Patent Document 3 a lead is connected to a negative electrode current collector exposed portion provided at an end portion on the winding start side of a negative electrode plate, and a negative electrode current collector exposed portion provided at an end portion on the winding end side is connected to the outer can.
  • a nonaqueous electrolyte secondary battery in contact with the inner surface is disclosed. As a result, it is possible to collect current from both ends of the negative electrode plate to the outer can even though only one lead is connected to the negative electrode plate, so that a non-aqueous electrolyte secondary battery having excellent output characteristics can be obtained. Can be provided.
  • JP 2001-110453 A Japanese Patent Laid-Open No. 10-172523 JP 2013-254561 A
  • Patent Document 3 proposes a technique for reducing the outer shape of the outer can after the electrode body is accommodated in the outer can. .
  • the technique is intended to be applied to an alkaline storage battery such as a nickel cadmium battery having a high-strength electrode plate. Since the electrode plate constituting the electrode body of the nonaqueous electrolyte secondary battery has a thin active material layer formed on a metal foil as a current collector, the strength of the electrode plate is smaller than that of an alkaline storage battery. For this reason, if a force is applied from the outside of the electrode body, the electrode plate may be displaced or the active material layer may be peeled off.
  • the present invention has been made in view of the above, and an object thereof is to provide a nonaqueous electrolyte secondary battery that is easy to manufacture and excellent in output characteristics.
  • a non-aqueous electrolyte secondary battery includes a negative electrode plate in which a negative electrode active material layer is formed on a negative electrode current collector and a positive electrode active material layer on a positive electrode current collector.
  • the negative electrode plate has a first negative electrode current collector exposed portion and a second negative electrode current collector exposed portion at which the negative electrode active material layer is not formed, respectively, at an end portion on the winding start side and an end portion on the winding end side.
  • a negative electrode lead is joined to the exposed portion of the first negative electrode current collector, and at least a part of the second negative electrode current collector is in contact with the inner side surface of the outer can.
  • the positive electrode active material layer includes a lithium nickel composite oxide.
  • the lithium nickel composite oxide is a general formula Li a Ni x M 1-x O 2 (0 ⁇ a ⁇ 1.2, 0.8 ⁇ x ⁇ 1, M is selected from the group consisting of Co, Mn, and Al It is preferably represented by at least one element.
  • both ends in the length direction of the negative electrode plate are electrically connected to an outer can that functions as a negative electrode external terminal, a nonaqueous electrolyte secondary battery having excellent output characteristics is provided. be able to. Further, by using the lithium nickel composite oxide as the positive electrode active material, fluctuations in internal resistance due to the charging depth are suppressed. Therefore, according to one embodiment of the present invention, a non-aqueous electrolyte secondary battery that is easy to manufacture and excellent in output characteristics can be provided.
  • FIG. 1 is a cross-sectional perspective view of a nonaqueous electrolyte secondary battery according to an embodiment of the present invention.
  • FIG. 2 is a plan view of a positive electrode plate according to an embodiment of the present invention.
  • FIG. 3 is a plan view of a negative electrode plate according to an embodiment of the present invention.
  • FIG. 4 is a perspective view of an electrode body according to an embodiment of the present invention.
  • FIG. 5 is a plan view of a negative electrode plate according to Comparative Examples 1, 2, and 4.
  • FIG. 6 is a perspective view of electrode bodies according to Comparative Examples 1, 2, and 4.
  • FIG. 1 is a cross-sectional perspective view of a nonaqueous electrolyte secondary battery according to an embodiment of the present invention.
  • FIG. 2 is a plan view of a positive electrode plate according to an embodiment of the present invention.
  • FIG. 3 is a plan view of a negative electrode plate according to an embodiment of the present invention.
  • FIG. 4 is a perspective view of an electrode body
  • FIG. 1 is a cross-sectional perspective view of a nonaqueous electrolyte secondary battery 10 according to an embodiment of the present invention.
  • An electrode body 14 and a non-aqueous electrolyte are accommodated in a bottomed cylindrical outer can 18.
  • the inside of the battery is hermetically sealed by caulking and fixing a sealing body 17 via a gasket 16 in a groove portion formed in the vicinity of the opening of the outer can 18.
  • the positive electrode plate 21 has a positive electrode active material layer 22 formed on a positive electrode current collector.
  • the positive electrode active material layer 22 is preferably formed on both surfaces of the positive electrode current collector.
  • a positive electrode current collector exposed portion 23 is provided at a central portion in the length direction of the positive electrode plate 21. In the positive electrode current collector exposed portion 23, it is preferable that both surfaces of the positive electrode current collector are exposed.
  • a positive electrode lead 24 is bonded to the positive electrode current collector exposed portion 23. Examples of the joining method include welding methods such as resistance welding, ultrasonic welding, and laser welding. The current collecting resistance of the positive electrode plate can be reduced by bonding the positive electrode lead 24 to the central portion of the positive electrode plate.
  • the positive lead 24 is preferably joined to the central portion in the length direction of the positive plate, but the joining position of the positive lead 24 is not limited to the central portion.
  • An insulating tape may be affixed on the positive electrode lead 24 bonded to the positive electrode current collector exposed portion 23 and on the back surface of the positive electrode current collector exposed portion 23 bonded to the positive electrode lead 24. Thereby, the internal short circuit resulting from the positive electrode lead 24 is prevented.
  • the positive electrode active material layer 22 can be formed by, for example, applying and drying a positive electrode mixture slurry prepared by kneading a positive electrode active material, a conductive agent, and a binder in a dispersion medium on a positive electrode current collector. .
  • the positive electrode active material layer after drying is preferably compressed with a roller so as to have a predetermined thickness.
  • the energy density of the nonaqueous electrolyte secondary battery can be improved by compressing the positive electrode active material layer 22.
  • the lithium nickel composite oxide is a lithium transition metal composite oxide containing nickel as a main component of a transition metal element and capable of reversibly occluding and releasing lithium ions.
  • the lithium nickel composite oxide is a general formula Li a Ni x M 1-x O 2 (0 ⁇ a ⁇ 1.2, 0.8 ⁇ x ⁇ 1, M is selected from the group consisting of Co, Mn, and Al It is preferably represented by at least one element.
  • a representing the amount of Li in the general formula is defined as 0 ⁇ a ⁇ 1.2 in consideration of the fact that it changes during charging and discharging.
  • the positive electrode active material can contain a lithium transition metal composite oxide other than the lithium nickel composite oxide.
  • the content of the other lithium transition metal composite oxide in the positive electrode active material is preferably less than 30% by mass with respect to the total mass of the positive electrode active material.
  • examples of other lithium transition metal composite oxides include lithium cobalt composite oxide and lithium manganese composite oxide.
  • the positive electrode current collector for example, a metal foil formed from aluminum, aluminum alloy, nickel, nickel alloy, or stainless steel can be used. Among these, a metal foil formed from aluminum or an aluminum alloy is preferable. Moreover, as a positive electrode lead, the metal plate which consists of a metal illustrated by the positive electrode electrical power collector can be used.
  • the negative electrode plate 31 has a negative electrode active material layer 32 formed on a negative electrode current collector.
  • the negative electrode active material layer 32 is preferably formed on both surfaces of the negative electrode current collector.
  • a first negative electrode current collector exposed portion 33a and a second negative electrode current collector exposed portion 33b are provided at both ends in the length direction of the negative electrode plate. In the first and second negative electrode current collector exposed portions 33a and 33b, the negative electrode active material layers are not formed on both surfaces of the negative electrode current collector.
  • the first and second negative electrode current collector exposed portions 33 a and 33 b may have different lengths on the front and back sides of the negative electrode plate 31.
  • a negative electrode lead 34 is joined to the first negative electrode current collector exposed portion 33a.
  • the negative electrode lead 34 may be bonded to either the front or back of the negative electrode plate 31. Examples of the joining method of the negative electrode lead 34 include welding methods such as resistance welding, ultrasonic welding, and laser welding.
  • the negative electrode active material layer 32 can be formed, for example, by applying a negative electrode mixture slurry prepared by kneading a negative electrode active material and a binder in a dispersion medium to a negative electrode current collector and drying.
  • the negative electrode active material layer 32 after drying is preferably compressed with a roller so as to have a predetermined thickness. By compressing the negative electrode active material layer 32, the energy density of the nonaqueous electrolyte secondary battery can be improved.
  • the negative electrode active material a carbon material or a silicon material capable of reversibly occluding and releasing lithium ions can be used.
  • the carbon material and the silicon material can be used alone or in combination. Since the volume change accompanying charging / discharging is large, the silicon material contains the silicon material in the negative electrode active material, so that the second negative electrode current collector exposed portion 33b disposed on the outermost periphery of the electrode body and the inner surface of the outer can 18 Contact is stable. Therefore, it is preferable to use a silicon material as the negative electrode active material.
  • Examples of the carbon material include graphite such as natural graphite and artificial graphite.
  • Examples of the silicon material include silicon, silicon oxide, lithium silicate, and silicon alloy.
  • silicon oxide silicon oxide represented by the general formula SiO x (0.5 ⁇ x ⁇ 1.6) is preferable from the viewpoint of balance between capacity and cycle characteristics.
  • the silicon material can be used alone, but can also be used as a composite obtained by mixing with graphite in the presence of pitch and sintering.
  • the negative electrode current collector for example, a metal foil formed from copper, copper alloy, nickel, nickel alloy, or stainless steel can be used. Among these, a metal foil formed from copper or a copper alloy is preferable.
  • the negative electrode lead 34 it is preferable to use the metal plate which consists of the metal illustrated by the negative electrode electrical power collector, and it is more preferable to use the clad material of nickel and copper.
  • the electrode body 14 is produced by winding the positive electrode plate 21 and the negative electrode plate 31 through the separator 11.
  • the first negative electrode current collector exposed portion 33 a is disposed on the winding start side of the electrode body 14, and the second negative electrode current collector exposed portion 33 b is disposed on the winding end side of the electrode body 14.
  • a microporous film mainly composed of polyolefin such as polyethylene (PE) or polypropylene (PP) can be used as the separator.
  • the microporous membrane can be used singly or as a laminate of two or more layers.
  • a layer mainly composed of polyethylene (PE) having a low melting point as an intermediate layer and polypropylene (PP) excellent in oxidation resistance as a surface layer.
  • Inorganic particles such as aluminum oxide (Al 2 O 3 ), titanium oxide (TiO 2 ), and silicon oxide (SiO 2 ) can be added to the separator. Such inorganic particles can be carried in the separator and can be applied together with a binder on the separator surface.
  • An aramid resin can also be applied to the surface of the separator.
  • non-aqueous electrolyte a solution obtained by dissolving a lithium salt as an electrolyte salt in a non-aqueous solvent can be used.
  • a cyclic carbonate, a chain carbonate, a cyclic carboxylic acid ester and a chain carboxylic acid ester can be used, and it is preferable to use a mixture of two or more.
  • the cyclic carbonate include ethylene carbonate (EC), propylene carbonate (PC), and butylene carbonate (BC).
  • a cyclic carbonate in which part of hydrogen is substituted with fluorine, such as fluoroethylene carbonate (FEC) can also be used.
  • the chain carbonate include dimethyl carbonate (DMC), ethyl methyl carbonate (EMC), diethyl carbonate (DEC), and methyl propyl carbonate (MPC).
  • Examples of cyclic carboxylic acid esters include ⁇ -butyrolactone ( ⁇ -BL) and ⁇ -valerolactone ( ⁇ -VL).
  • Examples of chain carboxylic acid esters include methyl pivalate, ethyl pivalate, methyl isobutyrate and methyl Pionate is exemplified.
  • LiPF 6 , LiBF 4 , LiCF 3 SO 3 , LiN (CF 3 SO 2 ) 2 , LiN (C 2 F 5 SO 2 ) 2 , LiN (CF 3 SO 2 ) (C 4 F 9 SO 2 ) , LiC (CF 3 SO 2 ) 3 , LiC (C 2 F 5 SO 2 ) 3 , LiAsF 6 , LiClO 4 , Li 2 B 10 Cl 10 and Li 2 B 12 Cl 12 are exemplified.
  • LiPF 6 is preferable, and the concentration in the nonaqueous electrolytic solution is preferably 0.5 to 2.0 mol / L.
  • Other lithium salts such as LiBF 4 may be mixed with LiPF 6 .
  • Example 1 (Preparation of positive electrode plate) 100 parts by mass of LiNi 0.80 Co 0.17 Al 0.03 O 2 as a positive electrode active material, 1 part by mass of acetylene black as a conductive agent, and 1 part by mass of polyvinylidene fluoride (PVDF as a binder) ) was mixed. The mixture was put into N-methyl-2-pyrrolidone (NMP) as a dispersion medium and kneaded to prepare a positive electrode mixture slurry. The positive electrode mixture slurry was intermittently applied to both surfaces of an aluminum positive electrode current collector having a thickness of 15 ⁇ m by a doctor blade method and dried to form a positive electrode active material layer 22 and a positive electrode current collector exposed portion 23.
  • NMP N-methyl-2-pyrrolidone
  • the positive electrode active material layer 22 was compressed with a roller, and the compressed electrode plate was cut into a predetermined size. Finally, a positive electrode lead 24 made of aluminum was joined to the positive electrode current collector exposed portion 23 to produce the positive electrode plate 21 shown in FIG.
  • the negative electrode active material layer 32 was compressed with a roller, and the compressed electrode plate was cut into a predetermined size. Finally, a negative electrode lead 34 made of nickel was joined to the first negative electrode current collector exposed portion 33a to produce the negative electrode plate 31 shown in FIG.
  • the positive electrode plate 21 and the negative electrode plate 31 were wound through a separator 11 made of a polyethylene microporous film to produce an electrode body 14.
  • the first negative electrode current collector exposed portion 33 a was disposed on the winding start side of the electrode body 14, and the second negative electrode current collector exposed portion 33 b was disposed on the winding end side of the electrode body 14. After winding, the end of the second negative electrode current collector exposed portion 33 b was fixed with the winding tape 15.
  • Ethylene carbonate (EC), ethyl methyl carbonate (EMC), and dimethyl carbonate (DMC) were mixed at a volume ratio of 25: 5: 70 (1 atm, 25 ° C.) to prepare a nonaqueous solvent.
  • a nonaqueous electrolyte was prepared by dissolving lithium hexafluorophosphate (LiPF 6 ) as an electrolyte salt in the nonaqueous solvent at a concentration of 1.0 mol / L.
  • An annular insulating plate 13 was disposed below the electrode body 14, and the electrode body 14 was inserted into the outer can 18.
  • the negative electrode lead 34 was joined to the bottom of the outer can 18.
  • An annular insulating plate 12 was disposed on the inserted electrode body 14, and a grooved portion was formed in the vicinity of the opening of the outer can.
  • the positive electrode lead 24 was joined to the sealing body 17, and the nonaqueous electrolyte was inject
  • the sealing body 17 was caulked and fixed to the grooved portion formed in the outer can 18 via the gasket 16 to produce the cylindrical nonaqueous electrolyte secondary battery 10 shown in FIG.
  • Example 2 A nonaqueous electrolyte secondary battery according to Example 2 was fabricated in the same manner as in Example 1 except that LiNi 0.79 Co 0.18 Al 0.03 O 2 was used as the positive electrode active material.
  • Comparative Example 1 As shown in FIGS. 5 and 6, Comparative Example 1 was performed in the same manner as in Example 1 except that the negative electrode lead 35 was bonded to the second negative electrode current collector exposed portion 33b and a separator was disposed on the outermost periphery of the electrode body. The nonaqueous electrolyte secondary battery which concerns on was produced.
  • Comparative Example 2 As shown in FIGS. 5 and 6, Comparative Example 2 was performed in the same manner as in Example 2 except that the negative electrode lead 35 was bonded to the second negative electrode current collector exposed portion 33b and a separator was disposed on the outermost periphery of the electrode body. The nonaqueous electrolyte secondary battery which concerns on was produced.
  • Comparative Example 3 A nonaqueous electrolyte secondary battery according to Comparative Example 3 was produced in the same manner as in Example 1 except that LiCoO 2 was used as the positive electrode active material.
  • Comparative Example 4 As shown in FIGS. 5 and 6, Comparative Example 4 is the same as Comparative Example 3 except that the negative electrode lead 35 is bonded to the second negative electrode current collector exposed portion 33 b and a separator is disposed on the outermost periphery of the electrode body. The nonaqueous electrolyte secondary battery which concerns on was produced.
  • the expansion amount of the lithium nickel composite oxide is larger than the expansion amount of the lithium cobalt composite oxide, and the increase in contact resistance between the negative electrode current collector exposed portion and the inner surface of the outer can is suppressed. It is guessed. From the above results, it can be seen that it is preferable to use a lithium nickel composite oxide as the positive electrode active material in order to ensure contact between the negative electrode current collector exposed portion arranged on the outermost periphery of the electrode body and the inner surface of the outer can. .
  • Example 1 and Example 2 are compared, it can be seen that a higher content of nickel contained in the lithium nickel composite oxide is preferable.
  • the internal resistance of Example 1 is equal to Comparative Example 1 in which the negative electrode lead is joined to both ends of the negative electrode plate. Therefore, the content of nickel contained in the lithium nickel composite oxide is preferably 80 mol% or more.
  • a part of nickel can be replaced with at least one element selected from the group consisting of cobalt, aluminum, and manganese. That is, as the positive electrode active material, the general formula Li a Ni x M 1-x O 2 (0 ⁇ a ⁇ 1.2, 0.8 ⁇ x ⁇ 1, M is at least selected from the group consisting of Co, Al, and Mn. It is more preferable to use a lithium nickel composite oxide represented by 1 element).
  • a non-aqueous electrolyte secondary battery that is easy to manufacture and excellent in output characteristics can be provided. Since the nonaqueous electrolyte secondary battery according to the present invention is suitable for applications requiring high output such as electric tools and electric vehicles, the industrial applicability of the present invention is great.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
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  • Battery Electrode And Active Subsutance (AREA)

Abstract

Une batterie secondaire à électrolyte non aqueux selon un mode de réalisation de la présente invention comprend : un corps d'électrode dans lequel une plaque d'électrode négative et une plaque d'électrode positive sont enroulées avec un séparateur intercalé entre celles-ci ; un électrolyte non aqueux ; un boîtier extérieur ; et un corps à ouverture scellée. Une partie de collecteur d'électrode négative exposée est disposée à chaque extrémité d'un côté de début d'enroulement et d'un côté de fin d'enroulement de la plaque d'électrode négative, et ne comporte pas de couche de substance active d'électrode négative formée dans celle-ci. Un conducteur d'électrode négative est connecté à la partie de collecteur d'électrode négative exposée sur le côté de début d'enroulement de la plaque d'électrode négative, et le conducteur d'électrode négative est connecté à une partie inférieure du boîtier extérieur. La partie de collecteur d'électrode négative exposée sur le côté de fin d'enroulement de la plaque d'électrode négative est en contact avec la surface de côté interne du boîtier extérieur. La couche de substance active d'électrode positive de la plaque d'électrode positive contient un oxyde de complexe de lithium-nickel.
PCT/JP2016/005175 2016-01-12 2016-12-19 Batterie secondaire à électrolyte non aqueux WO2017122251A1 (fr)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020084986A1 (fr) * 2018-10-26 2020-04-30 パナソニックＩｐマネジメント株式会社 Batterie secondaire cylindrique
CN111183542A (zh) * 2017-09-29 2020-05-19 松下电器产业株式会社 非水电解质二次电池
WO2021100282A1 (fr) * 2019-11-20 2021-05-27 日本碍子株式会社 Plaque de corps fritté de titanate de lithium
CN113039662A (zh) * 2018-12-19 2021-06-25 三洋电机株式会社 二次电池用的电极板和使用了该电极板的二次电池
WO2021153441A1 (fr) * 2020-01-31 2021-08-05 三洋電機株式会社 Batterie secondaire à électrolyte non aqueux

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JP2001110453A (ja) * 1999-10-04 2001-04-20 Sony Corp 非水電解液二次電池
WO2012042830A1 (fr) * 2010-09-30 2012-04-05 パナソニック株式会社 Batterie secondaire à électrolyte non aqueux
WO2016147564A1 (fr) * 2015-03-13 2016-09-22 三洋電機株式会社 Batterie secondaire à électrolyte non aqueux

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001110453A (ja) * 1999-10-04 2001-04-20 Sony Corp 非水電解液二次電池
WO2012042830A1 (fr) * 2010-09-30 2012-04-05 パナソニック株式会社 Batterie secondaire à électrolyte non aqueux
WO2016147564A1 (fr) * 2015-03-13 2016-09-22 三洋電機株式会社 Batterie secondaire à électrolyte non aqueux

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111183542A (zh) * 2017-09-29 2020-05-19 松下电器产业株式会社 非水电解质二次电池
CN111183542B (zh) * 2017-09-29 2023-06-02 松下控股株式会社 非水电解质二次电池
WO2020084986A1 (fr) * 2018-10-26 2020-04-30 パナソニックＩｐマネジメント株式会社 Batterie secondaire cylindrique
JPWO2020084986A1 (ja) * 2018-10-26 2021-09-09 パナソニックＩｐマネジメント株式会社 円筒型二次電池
JP7320738B2 (ja) 2018-10-26 2023-08-04 パナソニックＩｐマネジメント株式会社 円筒型二次電池
CN113039662A (zh) * 2018-12-19 2021-06-25 三洋电机株式会社 二次电池用的电极板和使用了该电极板的二次电池
CN113039662B (zh) * 2018-12-19 2023-05-05 三洋电机株式会社 二次电池用的电极板和使用了该电极板的二次电池
WO2021100282A1 (fr) * 2019-11-20 2021-05-27 日本碍子株式会社 Plaque de corps fritté de titanate de lithium
JPWO2021100282A1 (fr) * 2019-11-20 2021-05-27
WO2021153441A1 (fr) * 2020-01-31 2021-08-05 三洋電機株式会社 Batterie secondaire à électrolyte non aqueux

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