# US 12,003,000 B2 · Lithium ion battery and method for assessing deterioration of lithium ion battery

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- Number: US 12,003,000 B2
- Document ID: US12003000B2
- Status: Granted
- Kind: B2
- Application number: 17/296,173
- Filed: 2020-03-19
- Published: 2022-01-20
- Granted: 2024-06-04
- Earliest claimed: 2019-03-20
- Assignees: Apb Corporation
- Applicants: APB Corporation
- Inventors: Hideaki Horie; Keiichiro Higashi; Yohji Kawasaki; Yusuke Mizuno; Kotaro Nasu
- Web page: https://patentgrep.com/patent/US12003000B2

## CPC

- H01M 50/528: Fixed electrical connections, i.e. not intended for disconnection
- G01R 31/392: Determining battery ageing or deterioration, e.g. state of health
- H01M 4/663: {containing carbon or carbonaceous materials as conductive part, e.g. graphite, carbon fibres}
- H01M 4/668: {Composites of electroconductive material and synthetic resins}
- H01M 10/0486: {Frames for plates or membranes}
- H01M 10/0525: Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
- H01M 10/0585: of accumulators having only flat construction elements, i.e. flat positive electrodes, flat negative electrodes and flat separators
- H01M 10/4235: {Safety or regulating additives or arrangements in electrodes, separators or electrolyte (H01M10/4242 takes precedence)}
- H01M 10/4257: {Smart batteries, e.g. electronic circuits inside the housing of the cells or batteries}
- H01M 10/48: Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte (constructional details of current conducting connections for detecting conditions inside cells or batteries, e.g. details of voltage sensing terminals, H01M50/569)
- H01M 10/482: {for several batteries or cells simultaneously or sequentially}
- H01M 10/486: {for measuring temperature}
- H01M 50/103: prismatic or rectangular (H01M50/109, H01M50/11 take precedence)
- H01M 50/121: Organic material
- H01M 50/176: for prismatic or rectangular cells (H01M50/181 takes precedence)
- H01M 50/184: characterised by their shape or structure
- H01M 50/204: Racks, modules or packs for multiple batteries or multiple cells
- H01M 50/209: adapted for prismatic or rectangular cells (H01M50/216 takes precedence)
- H01M 50/284: with incorporated circuit boards, e.g. printed circuit boards [PCB]
- H01M 50/46: Separators, membranes or diaphragms characterised by their combination with electrodes
- H01M 50/463: Separators, membranes or diaphragms characterised by their shape
- H01M 50/569: Constructional details of current conducting connections for detecting conditions inside cells or batteries, e.g. details of voltage sensing terminals (battery terminal connectors with integrated measuring arrangements G01R31/364)
- G01R 31/371: with remote indication, e.g. on external chargers
- G01R 31/3835: involving only voltage measurements
- H01M 2010/4271: {Battery management systems including electronic circuits, e.g. control of current or voltage to keep battery in healthy state, cell balancing}
- H01M 2010/4278: {Systems for data transfer from batteries, e.g. transfer of battery parameters to a controller, data transferred between battery controller and main controller}
- Y02E 60/10: Energy storage using batteries
- Y02P 70/50: Manufacturing or production processes characterised by the final manufactured product
- H01M: PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- G01R: MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES (indicating correct tuning of resonant circuits H03J3/12)
- Y02E: REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02P: CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS

## Abstract

A lithium ion battery including a cell formed by sequentially stacking a positive current collector, a positive active material layer, a separator, a negative active material layer, and a negative current collector, the lithium ion battery being characterized by including a frame member disposed between the positive current collector and the negative current collector to seal the positive active material layer, the separator, and the negative active material layer, the frame member having, disposed therein, an electronic component for detecting an internal condition of the cell.

## Claims

### Claim 1

A lithium ion battery comprising a cell formed by sequentially stacking a positive current collector, a positive active material layer, a separator, a negative active material layer, and a negative current collector,
the lithium ion battery comprising a frame member disposed between the positive current collector and the negative current collector to seal the positive active material layer, the separator, and the negative active material layer,
the frame member having, disposed therein, an electronic component which detects an internal condition of the cell.

### Claim 2 (depends on 1)

The lithium ion battery according to claim 1, wherein the electronic component is a sensor which measures a temperature, voltage, current, or acoustic emission at a predetermined position in the cell.

### Claim 3 (depends on 1)

The lithium ion battery according to claim 1, wherein the electronic component is disposed at each of multiple positions in the frame member provided around a perimeter of the cell to individually detect conditions at different positions in the cell.

### Claim 4 (depends on 1)

The lithium ion battery according to claim 1, wherein the electronic component is electrically connected to the negative current collector and the positive current collector and receives power supply from the lithium ion battery.

### Claim 5 (depends on 4)

The lithium ion battery according to claim 4, wherein the negative current collector and the positive current collector are resin current collectors and the negative current collector and the positive current collector are directly joined and electrically connected to the electronic component.

### Claim 6 (depends on 1)

The lithium ion battery according to claim 1, wherein the frame member is provided with a through hole for disposing the electronic component, the electronic component is disposed in the through hole, and a thickness of the frame member is substantially equal to a height of the electronic component.

### Claim 7 (depends on 1)

The lithium ion battery according to claim 1, wherein a wiring board is provided in the frame member and the electronic component is mounted on the wiring board.

### Claim 8 (depends on 7)

The lithium ion battery according to claim 7, wherein the wiring board has, mounted thereon, a different electronic component for controlling a current and/or voltage supplied to the electronic component.

### Claim 9 (depends on 1)

The lithium ion battery according to claim 1, wherein the electronic component wirelessly outputs a signal indicating the internal condition of the cell to an outside of the cell.

### Claim 10 (depends on 1)

The lithium ion battery according to claim 1, wherein the lithium ion battery is a stacked battery formed by stacking a plurality of the cells, and
the electronic component disposed in the frame member individually detects a condition of each of the cells forming the stacked battery.

### Claim 11 (depends on 1)

The lithium ion battery according to claim 1, wherein the lithium ion battery is a battery module formed by combining a plurality of stacked batteries, each of the stacked batteries being formed by stacking a plurality of the cells, and
the electronic component disposed in the frame member individually detects a condition of each of the stacked batteries forming the battery module.

### Claim 12 (depends on 1)

The lithium ion battery according to claim 1, comprising a switch which switches between detection and non-detection of the internal condition of the cell by the electronic component disposed in the frame member,
wherein in a case where an external signal is provided, the switch is turned to detect the internal condition of the cell.