Columns
| Column | Type | Size | Nulls | Auto | Default | Children | Parents | Comments | ||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| cell_type_id | serial | 10 | √ | nextval('batteries_meta_batterytype_id_seq'::regclass) |
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Unique identifier for the cell type. Auto-incremented upon insertion. |
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| manufacturer | text | 2147483647 | √ | null |
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Manufacturer of the cell. |
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| manufacturer_pn | text | 2147483647 | √ | null |
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Part number of the cell from the manufacturer. |
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| form_factor | text | 2147483647 | √ | null |
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Geometry of the cell, e.g. cylindrical, pouch, prismatic, coin. |
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| capacity_mah | int4 | 10 | √ | null |
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Rated capacity of the cell in mAh. |
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| chemistry | text | 2147483647 | √ | null |
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Electrode and electrolyte material. |
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| dimensions | jsonb | 2147483647 | √ | null |
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Dimensions of the cell type. For pouch cells, H x W x L in mm. For cyclindrical cells, r x H in mm. For example, ‘{“x_mm”:54.25, “y_mm”:106.96, “z_mm”:3.19}’ for a pouch cell and ‘{“x_mm”:54.25, “y_mm”:106.96, “z_mm”:3.19}’ for a cyclindrical cell. |
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| datasheet | bytea | 2147483647 | √ | null |
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Datasheet for the cell type. BattETL will convert the pdf file to binary data and store it in the database. |
Indexes
| Constraint Name | Type | Sort | Column(s) |
|---|---|---|---|
| batterytype_id | Primary key | Asc | cell_type_id |
| unique_manufacturer_and_pn | Must be unique | Asc/Asc | manufacturer + manufacturer_pn |
Relationships
Close relationships within degrees of separation
