PATENT CLAIM ANALYSIS

Application Number: 15771284
Application Type: Utility
Filing Date: 2018-04
Publication Date: 2018-11
Patent Classification: ["429", "218100"]

Abstract:
The present invention relates to a negative electrode active material including a secondary particle in which primary particles are aggregated, wherein the primary particle includes: a core including one or more of silicon and a silicon compound; and a surface layer which is disposed on a surface of the core and contains carbon, wherein an average particle size D 50  of the core is in a range of 0.5 μm to 20 μm, a method of preparing the same, an electrode including the same, and a lithium secondary battery including the same.

Claim (Index 13):
A method of preparing a negative electrode active material, comprising:\n preparing a core including one or more of silicon or a silicon compound and having an average particle size D 50  of 0.5 to 20 \u03bcm (Step 1); forming a surface layer containing carbon on the surface of the core to form a primary particle (Step 2); and forming a secondary particle by aggregating the primary particles (Step 3).

Metadata:
- Claim Count in Document: 2.0
- Percentile: 91.0
- Lexical Diversity: 1.81818
- Patent Class: 429.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15751916', '15295330', '13464404', '13117406', '15684135']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8792085570159321
- 35 USC 102 Novelty (BERT): 0.4924682014454858
- Combined Prediction Score: 0.8405345214588875
- Mean Citation Score: 227.01045000000005
- Max Citation Score: 248.95642
- Similarity Product: 179.99458399055715

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