PATENT CLAIM ANALYSIS

Application Number: 15780670
Application Type: Utility
Filing Date: 2018-06
Publication Date: 2018-12
Patent Classification: ["429", "209000"]

Abstract:
An object of the present invention is to reduce the gelation of a positive electrode mixture and to reduce an increase in the resistance of a positive electrode of a sodium ion secondary battery. The invention relates to a sodium ion secondary battery including a positive electrode, a negative electrode, a separator disposed between the positive and negative electrodes, and a sodium-ion-conducting nonaqueous electrolyte. The positive electrode contains positive electrode active material particles, a conductive additive, and a binder. Each positive electrode active material particle includes an oxide particle that absorbs and releases sodium ions and a covering layer covering the oxide particle. The oxide particle contains an oxide A containing Ni and Mn. The covering layer contains at least one material B selected from the group consisting of a ceramic and a carbonaceous material. The binder contains a fluorocarbon resin.

Claim (Index 7):
Positive electrode active material particles for a sodium ion secondary battery, each positive electrode active material particle comprising an oxide particle that absorbs and releases sodium ions and a covering layer covering the oxide particle,\n wherein the oxide particle comprises an oxide A containing Ni and Mn, and the covering layer comprises at least one material B selected from the group consisting of a ceramic and a carbonaceous material.

Metadata:
- Claim Count in Document: 7.0
- Percentile: 94.0
- Lexical Diversity: 2.21739
- Patent Class: 429.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15502467', '14915425', '14362660', '13807453', '13805004']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8471475116804407
- 35 USC 102 Novelty (BERT): 0.4905550918433261
- Combined Prediction Score: 0.8114882696967293
- Mean Citation Score: 214.056042
- Max Citation Score: 235.24245
- Similarity Product: 182.1812729203552

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

Dataset: test