PATENT CLAIM ANALYSIS

Application Number: 16245750
Application Type: Utility
Filing Date: 2019-01
Publication Date: 2019-05
Patent Classification: ["429", "246000"]

Abstract:
The present invention relates generally to electrochemical energy storage devices such as Li-ion batteries, and more particularly to a method of providing uniform ceramic coatings with controlled thicknesses for separators in such storage devices. Some embodiments of the invention utilize a layer by layer coating of nano/micro-sized particles dispersed in a solvent, which can be aqueous or non-aqueous. Other embodiments of the invention utilize a dry process such as PVD for depositing a ceramic film on a porous polyolefin separator. According to certain aspects of the invention, advantages of this approach include the ability to achieve a denser more uniform film with better controlled thickness with less waste and higher yield than current ceramic coating technology. An advantage of a ceramic coated separator is increased safety of cells.

Claim (Index 1):
A battery comprising:\n a negative electrode; a positive electrode; and a separator disposed between the negative electrode and the positive electrode, wherein the separator comprises: a porous battery separator material having a negative electrode facing surface and an opposite positive electrode facing surface, and a ceramic coating that is uniformly distributed on the negative electrode facing surface.

Metadata:
- Claim Count in Document: 1.0
- Percentile: 99.0
- Lexical Diversity: 1.6
- Patent Class: 429.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['14652018', '14227588', '12196203', '12981411', '15148278']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8506276125952709
- 35 USC 102 Novelty (BERT): 0.4488875122588634
- Combined Prediction Score: 0.8104536025616301
- Mean Citation Score: 100.108627
- Max Citation Score: 116.11288
- Similarity Product: 89.3738751664257

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