# US 8,541,128 B2 · Rechargeable lithium battery and method of fabricating same

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- Number: US 8,541,128 B2
- Document ID: US8541128B2
- Status: Granted
- Kind: B2
- Application number: 12/253,203
- Filed: 2008-10-16
- Published: 2009-03-05
- Granted: 2013-09-24
- Earliest claimed: 2001-12-03
- Assignees: Samsung SDI Co., Ltd.
- Applicants: Takitaro Yamaguchi; Ryuichi Shimizu; Cheol-Soo Jung
- Inventors: Takitaro Yamaguchi; Ryuichi Shimizu; Cheol-Soo Jung
- Web page: https://patentgrep.com/patent/US8541128B2

## CPC

- H01M 10/0525: Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
- H01M 4/622: {being polymers}
- H01M 10/0431: {Cells with wound or folded electrodes (H01M10/045 takes precedence)}
- H01M 10/0565: Polymeric materials, e.g. gel-type or solid-type
- H01M 10/0567: characterised by the additives
- H01M 6/168: {by additives}
- H01M 6/181: {with polymeric electrolytes}
- H01M 50/103: prismatic or rectangular (H01M50/109, H01M50/11 take precedence)
- H01M 2300/0025: Organic electrolyte
- H01M 2300/0082: Organic polymers
- 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
- 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

Disclosed is a rechargeable lithium battery comprising a negative electrode and a positive electrode capable of intercalating and deintercalating lithium, and an electrolyte, wherein the electrolyte comprises a polyacrylate compound having three or more acrylic groups.

## Claims

### Claim 1

A rechargeable lithium battery comprising:
a positive electrode capable of intercalating and deintercalating lithium;
an electrolyte comprising an electrolytic organic solution comprising a polyacrylate compound selected from the group consisting of compounds represented by Formulae (1) and (3) and combinations thereof:
where 0≦a≦15, 0≦b≦15, 0≦c≦15, 3≦a+b+c≦15, and wherein the polyacrylate compound is present in the electrolyte in an amount of 0.01 to 10 wt %; and
wherein the polyacrylate compound is present in the electrolyte in an amount of 0.01 to 10 wt %; and
a negative electrode, wherein the surface of the negative electrode is coated with an organic layer of the polyacrylate compound during charge of the battery.