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PolyPlus Battery Company

PolyPlus Battery Company

Private
Berkeley, CaliforniaEnergy & Sustainabilityhttps://polyplus.com/

Last Round

Series A

Oct 1, 2023

Total Funding Raised

$37.14M

Company Overview

PolyPlus Battery Company is a battery technology company that develops advanced lithium-based battery systems, including protected lithium electrodes and high-energy-density solid-state batteries for various industrial and defense applications.

Sector

Energy & Sustainability

Verticals

Energy Storage, Advanced Materials, Electric Vehicles, Defense Tech

Business Model

B2B

Customer Profile

Hardware Sales, Government Contracts, Services & Consulting

AI Layer

Non-AI

Keywords

lithium metal batterysolid-state batteryprotected lithium electrodePLEenergy storage technologylithium-seawater batterynext-gen batterieshigh energy densitylithium-sulfur batterylithium-air batterybattery IP licensingadvanced materialssubsea poweraerospace energy storagebattery R&D

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PolyPlus Battery Company Comparables

Compare PolyPlus Battery Company with similar companies based on industry and business-model similarity.

PolyPlus Battery Company comparables — related companies by embedding similarity
CompanySimilarityMarket Cap
Sion Power
84%
NexTech Batteries
79%
Li-S Energy Ltd
78%

PolyPlus Battery Company Funding Rounds

Historical fundraising activity

Data table
RoundDateAmount RaisedValuationInvestorsSources
Series AOct 1, 2023
Convertible DebtMay 23, 2019
Corporate FundingFeb 18, 2019
GrantApr 3, 2017
GrantSep 1, 2015
Grant
Feb 6, 2013

PolyPlus Battery Company Investors

Notable investors and investment history

PolyPlus Battery Company investors
InvestorRounds
Office of Naval ResearchGrant
Belzberg & Co.Convertible Debt
Tao Capital PartnersSeries A
US Department of Energy (ARPA-E)Grant
Department of EnergyGrant

Market signals

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  • Jan 24, 2026

    Monthly visitors increased 487% MoM, reaching 3.6K.

  • Jan 1, 2026

    Monthly visitors increased 195% MoM, reaching 1.8K.

PolyPlus Battery Company Filings

SEC and related filings with document metadata.

Data table
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PolyPlus Battery Company Filings

SEC and related filings with document metadata.

Frequently Asked Questions

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Firmographic Details

HeadquartersBerkeley, California
Employee Range19
Year Founded1991
Last FundingOct 1, 2023

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