XML 50 R30.htm IDEA: XBRL DOCUMENT v3.25.4

Property, Plant, and Equipment (Tables)

12 Months Ended

Dec. 31, 2025

Property, Plant, and Equipment

Schedule of property plant and equipment net

​

​	​	​	​	​	​	​
​	​	December 31,
​	​	2025		​ ​ ​	2024
Production equipment	​	$	43,203	​	$	41,750
Laboratory equipment	​	​	15,287	​	​	12,611
Leasehold improvements	​		73,369	​		73,114
Furniture and computer equipment	​		4,711	​		4,298
Construction in progress	​		6,858	​		5,141
Total cost	​		143,428	​		136,914
Accumulated depreciation	​		(57,110)	​		(39,706)
Net property, plant and equipment	​	$	86,318	​	$	97,208

Schedule of depreciation expense

​

​	​	​	​	​	​	​	​
​	​	December 31,
​	​	2025		​ ​ ​	2024		​ ​ ​
Depreciation expense	​	$	18,400	​	$	16,449	​

Schedule of construction in progress

​

​	​	​	​	​	​	​
​	​ ​ ​	​	​	​	​	​
​	​	December 31,
Construction in progress		2025		​ ​ ​	2024
Continuous electrolyte pilot manufacturing line	​	$	5,214	​	$	1,194
Cell safety abuse lab	​	​	94	​	​	835
EIC	​	​	111	​	​	1,292
Other capital projects	​	​	1,439	​	​	1,820
Total construction in progress	​	$	6,858	​	$	5,141

​

X

- Definition

Tabular disclosure of depreciation and amortization relating to property, plant and equipment.

+ References

No definition available.

+ Details

Name:	sldp_PropertyPlantAndEquipmentDepreciationAndAmortizationTableTextBlock
Namespace Prefix:	sldp_
Data Type:	dtr-types:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- Definition

The tabular disclosure of construction in progress.

+ References

No definition available.

+ Details

Name:	sldp_ScheduleOfConstructionInProgressTableTextBlock
Namespace Prefix:	sldp_
Data Type:	dtr-types:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- References

No definition available.

+ Details

Name:	us-gaap_PropertyPlantAndEquipmentAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Tabular disclosure of physical assets used in the normal conduct of business and not intended for resale. Includes, but is not limited to, balances by class of assets, depreciation and depletion expense and method used, including composite depreciation, and accumulated deprecation.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-SubTopic 10
-Topic 360
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482099/360-10-50-1

+ Details

Name:	us-gaap_PropertyPlantAndEquipmentTextBlock
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:textBlockItemType
Balance Type:	na
Period Type:	duration