BATTERY, BATTERY PACK, ELECTRONIC DEVICE, ELECTRIC VEHICLE, ELECTRIC STORAGE DEVICE, AND ELECTRIC POWER SYSTEM

• US 20150188106A1
• Filed: 12/12/2014
• Published: 07/02/2015
• Est. Priority Date: 12/27/2013
• Status: Active Application

• Current Assignee: Murata Manufacturing Co Limited
• Original Assignee: Sony Corporation (Sony Group Corp.)
• Inventors: TAKESHI, Kazumasa, KUBOTA, Tadahiko, FUKUSHIMA, Kazuaki
• Application Number:
  US14/568,767
• Publication Number:
  US 20150188106A1
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: B60L 2200/12 Bikes
• CPC Class Codes: B60L 2240/66 Ambient conditions
• CPC Class Codes: B60L 2240/70 Interactions with external data bases, e.g. traffic centres
• CPC Class Codes: B60L 2250/16 by display
• CPC Class Codes: B60L 50/52 characterised by DC-motors
• CPC Class Codes: B60L 50/61 by batteries charged by engine-driven generators, e.g. series hybrid electric vehicles
• CPC Class Codes: B60L 50/64 Constructional details of batteries specially adapted for electric vehicles
• CPC Class Codes: B60L 53/51 Photovoltaic means
• CPC Class Codes: B60L 53/53 Batteries
• CPC Class Codes: B60L 53/63 in response to network capacity
• CPC Class Codes: B60L 55/00 Arrangements for supplying energy stored within a vehicle to a power network, i.e. vehicle-to-grid [V2G] arrangements
• CPC Class Codes: H01M 10/052 Li-accumulators
• CPC Class Codes: H01M 4/38 of elements or alloys
• CPC Class Codes: H01M 4/382 Lithium H01M4/405 takes precedence
• CPC Class Codes: H01M 50/431 Inorganic material
• CPC Class Codes: H01M 50/44 Fibrous material
• CPC Class Codes: Y02E 60/00 Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
• CPC Class Codes: Y02E 60/10 Energy storage using batteries
• CPC Class Codes: Y02P 70/50 Manufacturing or production processes characterised by the final manufactured product
• CPC Class Codes: Y02T 10/62 Hybrid vehicles
• CPC Class Codes: Y02T 10/70 : Energy storage systems for electromobility, e.g. batteries
• CPC Class Codes: Y02T 10/7072 : Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
• CPC Class Codes: Y02T 10/72 : Electric energy management in electromobility
• CPC Class Codes: Y02T 90/12 : Electric charging stations
• CPC Class Codes: Y02T 90/14 : Plug-in electric vehicles
• CPC Class Codes: Y02T 90/16 : Information or communication technologies improving the operation of electric vehicles
• CPC Class Codes: Y04S 10/126 : the energy generation units being or involving electric vehicles [EV] or hybrid vehicles [HEV], i.e. power aggregation of EV or HEV, vehicle to grid arrangements [V2G]

Abstract

Provided is a battery which can improve the positive electrode utilization and rate characteristics of a charge-discharge reaction. The battery includes a positive electrode containing sulfur, a negative electrode containing lithium, an electrolyte, and a conductive interlayer provided between the positive electrode and the negative electrode. The conductive interlayer includes a conductive fiber-containing layer, a conductive nanotube-containing layer, or a conductive mesh.

Claims

1. A battery comprising:

a positive electrode containing sulfur;

a negative electrode containing lithium;

an electrolyte; and

a conductive interlayer provided between the positive electrode and the negative electrode,

wherein the conductive interlayer includes a conductive fiber-containing layer, a conductive nanotube-containing layer, or a conductive mesh.

2. The battery according to claim 1, wherein the conductive fiber-containing layer comprises a conductive non-woven fabric or a conductive woven fabric.

3. The battery according to claim 2, wherein the conductive fiber comprises at least one selected from the group consisting of carbon, metals, and conductive polymers.

4. The battery according to claim 1, wherein the conductive nanotube is a carbon nanotube.

5. The battery according to claim 1, wherein the conductive mesh comprises a metal.

6. The battery according to claim 1, wherein the positive electrode comprises a non-porous conducting aid.

7. The battery according to claim 6, wherein the conducting aid comprises at least one selected from the group consisting of carbon fibers and carbon nanotubes.

8. The battery according to claim 1, wherein the electrolyte comprises a kasolite electrolytic solution.

9. The battery according to claim 1, wherein the conductive interlayer has a space that accepts a volume expansion of lithium sulfide.

10. The battery according to claim 1, wherein the conductive interlayer holds the electrolyte, achieves lithium ion permeation, and gives and receives electrons to and from sulfur or lithium sulfide dissolved in the electrolyte.

11. A battery pack comprising a battery including:

a positive electrode containing sulfur;

a negative electrode containing lithium;

an electrolyte; and

a conductive interlayer provided between the positive electrode and the negative electrode,

wherein the conductive interlayer includes a conductive fiber-containing layer, a conductive nanotube-containing layer, or a conductive mesh.

12. An electronic device comprising a battery including:

a positive electrode containing sulfur;

a negative electrode containing lithium;

an electrolyte; and

a conductive interlayer provided between the positive electrode and the negative electrode,

wherein the conductive interlayer includes a conductive fiber-containing layer, a conductive nanotube-containing layer, or a conductive mesh, and

the electronic device is powered by the battery.

13. An electric vehicle comprising:

a battery;

a conversion device powered by the battery to convert the power to a driving force for the vehicle; and

a controller that conducts information processing for vehicle control on the basis of information regarding the battery,

wherein the battery includes;

a positive electrode containing sulfur;

a negative electrode containing lithium;

an electrolyte; and

a conductive interlayer provided between the positive electrode and the negative electrode, and

the conductive interlayer includes a conductive fiber-containing layer, a conductive nanotube-containing layer, or a conductive mesh.

14. An electric storage device comprising a battery including:

a positive electrode containing sulfur;

a negative electrode containing lithium;

an electrolyte; and

a conductive interlayer provided between the positive electrode and the negative electrode,

wherein the conductive interlayer includes a conductive fiber-containing layer, a conductive nanotube-containing layer, or a conductive mesh, to supply electric power to an electronic device connected to the battery.

15. The electric storage device according to claim 14, the device comprising a power information controller that transmits and receives signals to and from other device via a network, and controlling charge and discharge for the battery on the basis of information received by the power information controller.

16. An electric power system comprising a battery including:

a positive electrode containing sulfur;

a negative electrode containing lithium;

an electrolyte; and

a conductive interlayer provided between the positive electrode and the negative electrode,

wherein the conductive interlayer includes a conductive fiber-containing layer, a conductive nanotube-containing layer, or a conductive mesh, and

the system is powered by the battery, or electric power is supplied from an electric generator or a power network to the battery.