Secondary battery-use anode, secondary battery, battery pack, electric vehicle, electri power storage system, electric power tool, and electronic apparatus

• US 10,367,203 B2
• Filed: 07/29/2014
• Issued: 07/30/2019
• Est. Priority Date: 09/13/2013
• Status: Active Grant

• Current Assignee: Murata Manufacturing Co Limited
• Original Assignee: Murata Manufacturing Co Limited
• Inventors: Yamada, Ichiro, Sakamoto, Takuma, Asakawa, Yuichiro, Nishimoto, Atsushi
• Primary Examiner(s): Eggerding, Alix E
• Application Number:
  US14/917,484
• Publication Number:
  US 20160218368A1
• Time in Patent Office: 1,827 Days
• Field of Search: None
• CPC Class Codes: B60L 50/64 Constructional details of batteries specially adapted for electric vehicles
• CPC Class Codes: H01M 10/0525 Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
• CPC Class Codes: H01M 10/0565 Polymeric materials, e.g. gel-type or solid-type
• CPC Class Codes: H01M 10/0569 characterised by the solvents
• CPC Class Codes: H01M 10/4257 Smart batteries, e.g. electronic circuits inside the housing of the cells or batteries
• CPC Class Codes: H01M 2004/027 Negative electrodes
• CPC Class Codes: H01M 2004/028 Positive electrodes
• CPC Class Codes: H01M 2220/20 Batteries in motive systems, e.g. vehicle, ship, plane
• CPC Class Codes: H01M 2220/30 Batteries in portable systems, e.g. mobile phone, laptop
• CPC Class Codes: H01M 4/131 Electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx
• CPC Class Codes: H01M 4/133 Electrodes based on carbonaceous material, e.g. graphite-intercalation compounds or CFx
• CPC Class Codes: H01M 4/134 Electrodes based on metals, Si or alloys
• CPC Class Codes: H01M 4/364 as mixtures
• CPC Class Codes: H01M 4/386 Silicon or alloys based on silicon
• CPC Class Codes: H01M 4/485 of mixed oxides or hydroxides for inserting or intercalating light metals, e.g. LiTi2O4 or LiTi2OxFy H01M4/505, H01M4/525 take precedence
• CPC Class Codes: H01M 4/505 of mixed oxides or hydroxides containing manganese for inserting or intercalating light metals, e.g. LiMn2O4 or LiMn2OxFy
• CPC Class Codes: H01M 4/525 of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
• CPC Class Codes: H01M 4/587 for inserting or intercalating light metals
• CPC Class Codes: H01M 4/628 Inhibitors, e.g. gassing inhibitors, corrosion inhibitors
• CPC Class Codes: H01M 50/105 Pouches or flexible bags
• CPC Class Codes: H01M 50/107 : having curved cross-section, e.g. round or elliptic H01M50/103, H01M50/109, H01M50/11 take precedence
• CPC Class Codes: H02J 2310/48 : for electric vehicles [EV] or hybrid vehicles [HEV]
• CPC Class Codes: H02J 7/00302 : Overcharge protection
• CPC Class Codes: H02J 7/00306 : Overdischarge protection
• CPC Class Codes: H02J 7/00309 : Overheat or overtemperature protection
• CPC Class Codes: H02J 7/0048 : Detection of remaining charge capacity or state of charge [SOC]
• CPC Class Codes: H02J 7/007194 : of the battery
• CPC Class Codes: Y02E 60/10 : Energy storage using batteries
• CPC Class Codes: Y02T 10/70 : Energy storage systems for electromobility, e.g. batteries

Abstract

A secondary battery includes: a cathode; an anode; and a nonaqueous electrolytic solution. The anode includes an anode active material containing an electrode compound, the electrode compound inserting and extracting an electrode reactant at a potential (a potential to lithium) of 1 V to 3 V both inclusive, and a metal salt containing one or both of a carboxylic acid compound and a sulfonic acid compound.

Claims

1. A secondary battery comprising:

a cathode;

an anode; and

a nonaqueous electrolytic solution,

the anode including an anode active material mixture in an anode active material layer,

wherein the anode active mixture includes an anode active material and a metal salt,

wherein a content of the metal salt in the anode active material layer ranges from 0.5 wt % to 3 wt %,

wherein the anode active material containing an electrode compound, the electrode compound inserting and extracting an electrode reactant at a potential (a potential to lithium) of 1 V to 3 V both inclusive, and

wherein the metal salt containing one or both of a carboxylic acid compound represented by the following formula (1) and a sulfonic acid compound represented by the following formula (2),

2. The secondary battery according to claim 1, wherein

the electrode compound includes one or more of lithium titanium composite oxides represented by the following formula (3),

LiwTixM3yOz 

 

(3)

where M3 is one or more of magnesium (Mg), boron (B), aluminum (Al), gallium (Ga), indium (In), silicon (Si), germanium (Ge), tin (Sn), lead (Pb), bismuth (Bi), cadmium (Cd), silver (Ag), zinc (Zn), hafnium (Hf), zirconium (Zr), yttrium (Y), palladium (Pd), and platinum (Pt), “

w”

, “

x”

, “

y”

, and “

z”

satisfy 3≤

w≤

7, 3≤

x≤

5, 0≤

y≤

4, and 10≤

z≤

12.

3. The secondary battery according to claim 1, wherein the nonaqueous electrolytic solution includes γ

-butyrolactone.

4. The secondary battery according to claim 1, wherein the cathode, the anode, and the nonaqueous electrolytic solution are contained inside a film-like outer package member.

5. The secondary battery according to claim 1, wherein the nonaqueous electrolytic solution is held by a polymer compound.

6. A battery pack comprising:

a secondary battery according to claim 1;

a control section configured to control an operation of the secondary battery; and

a switch section configured to switch the operation of the secondary battery according to an instruction of the control section.

7. An electric vehicle comprising:

a secondary battery according to claim 1;

a conversion section configured to convert electric power supplied from the secondary battery into drive power;

a drive section configured to operate according to the drive power; and

a control section configured to control an operation of the secondary battery.

8. An electric power storage system comprising:

a secondary battery according to claim 1;

one or more electric devices configured to be supplied with electric power from the secondary battery; and

a control section configured to control the supplying of the electric power from the secondary battery to the one or more electric devices.

9. An electric power tool comprising:

a secondary battery according to claim 1; and

a movable section configured to be supplied with electric power from the secondary battery.

10. An electronic apparatus comprising a secondary battery according to claim 1 as an electric power supply source.

11. A secondary battery-use anode comprising:

an anode active material containing an electrode compound, the electrode compound inserting and extracting an electrode reactant at a potential (a potential to lithium) of 1 V to 3 V both inclusive, and

a metal salt containing one or both of a carboxylic acid compound represented by the following formula (1) and a sulfonic acid compound represented by the following formula (2),