# US 5,705,689 A · Aza compounds as anion receptors

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- Number: US 5,705,689 A
- Document ID: US5705689A
- Status: Granted
- Kind: A
- Application number: 08/492,201
- Filed: 1995-06-19
- Granted: 1998-01-06
- Earliest claimed: 1995-06-19
- Assignees: Associated Universities, Inc.
- Inventors: Hung Sui Lee; Xiao-Qing Yang; James McBreen
- Web page: https://patentgrep.com/patent/US5705689A

## CPC

- H01M 10/0567: characterised by the additives
- C07C 311/09: the carbon skeleton being further substituted by at least two halogen atoms
- C07D 257/02: not condensed with other rings
- H01M 6/168: {by additives}
- H01M 6/164: {by the solvent}
- H01M 6/181: {with polymeric electrolytes}
- H01M 2300/0085: Immobilising or gelification of electrolyte
- Y02E 60/10: Energy storage using batteries
- H01M: PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- C07C: ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07D: HETEROCYCLIC COMPOUNDS (macromolecular compounds C08)
- Y02E: REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION

## Abstract

A family of aza-ether based compounds including linear, multi-branched and aza-crown ethers is provided. When added to non-aqueous battery electrolytes, the family of aza-ether based compounds acts as neutral receptors to complex the anion moiety of the electrolyte salt thereby increasing the conductivity and the transference number of Li.sup.+ ion in alkali metal batteries.

## Claims

### Claim 1

A linear aza-ether having the formula ##STR10## wherein n.sub.1 =0-20, n.sub.2 =0-20, m=0-20 and n.sub.1 +n.sub.2 >0 and R is a substituent selected from the group consisting of CF.sub.3 SO.sub.2, CF.sub.3 CO, CN and SO.sub.2 CN.

### Claim 2

A linear aza-ether having the formula ##STR11## wherein n>60 and R is a substituent selected from the group consisting of CF.sub.3 SO.sub.2, CF.sub.3 CO, CN and SO.sub.2 CN.

### Claim 3

A multi-branch aza-ether which is a compound selected from the group consisting of NR'.sub.3 and CR".sub.4, wherein R' is R.sub.2 --N--CH.sub.2 --CH.sub.2 --, R" is R.sub.2 NCH.sub.2 CH.sub.2 NRCH.sub.2 --, and R is a substituent selected from the group consisting of CF.sub.3 SO.sub.2, CF.sub.3 CO, CN and SO.sub.2 CN.