PATENT CLAIM ANALYSIS

Application Number: 15754630
Application Type: Utility
Filing Date: 2018-02
Publication Date: 2018-08
Patent Classification: ["429", "319000"]

Abstract:
Disclosed is a method of preparing a solid electrolyte, which includes (a) preparing a solid electrolyte precursor slurry by subjecting a mixed solution including a metal precursor solution, containing a lanthanum precursor, a zirconium precursor and an aluminum precursor, a complexing agent, and a pH controller to coprecipitation, (b) preparing a solid electrolyte precursor by washing and drying the solid electrolyte precursor slurry, (c) preparing a mixture by mixing the solid electrolyte precursor with a lithium source, and (d) preparing an aluminum-doped lithium lanthanum zirconium oxide (LLZO) solid electrolyte by calcining the mixture, and which is also capable of adjusting the aluminum content of a starting material to thus control sintering properties and of adjusting the composition of a precursor and a lithium source to thus control the crystal structure, thereby improving the ionic conductivity of the solid electrolyte. In addition, a method of manufacturing an all-solid-state lithium secondary battery, including a solid electrolyte having improved ion conductivity, can be provided using the method of preparing the solid electrolyte.

Claim (Index 11):
The method of  claim 1 , wherein a La:Zr:Al molar ratio in the metal precursor solution is a:b:c, a ranging from 2 to 4, b ranging from 1 to 3, and c ranging from 0.2 to 0.4.

Metadata:
- Claim Count in Document: 19.0
- Percentile: 88.0
- Lexical Diversity: 2.4557
- Patent Class: 429.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['14937747', '14608906', '14429687', '14274675', '15346105']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8699737630155348
- 35 USC 102 Novelty (BERT): 0.5170144375491684
- Combined Prediction Score: 0.8346778304688981
- Mean Citation Score: 256.937394
- Max Citation Score: 289.87573
- Similarity Product: 193.5910233437776

Labels:
- Claim Label 101: 1
- Claim Label 102: 0
- Claim Label 103: 1
- Claim Label 112: 1
- Combined Label: 0
- Label 101 Adjusted: 1

Dataset: test